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[Display omitted] • Adamantyl end-capped groups have potential to boost blue MR-TADF OLEDs' stability. • Adamantyl stabilize excited states by reducing vibronic relaxation in backbones. • Solution-processed deep-blue OLEDs achieved CIE y < 0.08 with a high LT 95 of 55.7 h. Stable solution-processable emitters, particularly deep-blue emitters, are critical for cost-effective and energy-efficient organic light-emitting diodes (OLEDs). In this study, three new multiple resonance (MR) type deep blue emitters with through dual-introduction of methyl and adamantyl as end-capped groups are designed for highly efficient and stable blue fluorescent OLEDs, contributing to doubled device lifetime. Through end-capped modification, the excited states are stabilized via reducing vibronic couplings. Stable deep blue device based on m-DABNA-AdCz are achieved with high current efficiency (CE) of 6.0 cd/A in solution process fluorescent OLEDs and device lifetime up to 95 % of the initial luminance (LT 95) of 55.7 h at 1000 cd m−2, along with the Commission Internationale de l'Eclairage (CIE) coordinates of (0.133, 0.076). This lifetime is the best yet among solution-processed OLEDs of CIE y < 0.08 according to literature to our best knowledge. This work presents a viable strategy for the development of high-performance solution process deep blue fluorescent OLEDs with high color purity and long device lifetime. [ABSTRACT FROM AUTHOR]

• Additive of Bismuth (III) triflate is used to strengthen the PEO based SPEs. • Enhancement of ionic conductivity (∼8 times higher than the baseline). • LiF-based integral cathode/SPE and Li/SPE interfaces are generated. • Lithium plating/stripping lasts 2800 h in Li/Bi-SPE/Li symmetric cell. • The NMC811/Li all-solid-state performs stable cycle at 45℃(800, 72%). The interfacial instability of the poly(ethylene oxide) (PEO)-based electrolytes hinders the long-term cycling of the high voltage LiNi 0.8 Co 0.1 Mn 0.1 O 2 /Li all-solid-state batteries (ASSBs) and further application. In this work, we have demonstrated an effective additive bismuth (III) triflate (BiOTF) benefiting to the exceptional performance of the PEO-based electrolytes. Attributed to the intensive mediation of the BiOTF to the polymer matrix and anions, the coordination of the Li+-EO has been weaken and the bondage of anion has been improved, resulting to the improvement of the Li+ conductivity and the electrochemical stability. The reduced Bi 'seeds' on the surface of the lithium anode could effectively alloy with lithium to suppress the lithium dendrite growth. Importantly, the BiOTF mediates the formation of LiF in the both interfaces, which contributes to the interfacial stability (especially at high voltage) and protection of the electrodes, enabling the long-term cycling of the ASSBs under high voltage. Therefore, the Li/Li symmetric cell can undergo long-term lithium plating/stripping for over 2800 h. And the steady cycling of 4.4 V NMC811/Li ASSB with the optimized electrolyte for 800 times can be achieved, with an impress capacity retention of 72.4 %. [ABSTRACT FROM AUTHOR]

• Constructing more interfacial Auδ--O V -Zr3+ active sites by tuning the crystal structure of ZrO 2 supports. • Interfacial Auδ--O V -Zr3+ structure exhibits strong electrons transfer from tetragonal-ZrO 2 to Au atom. • The O V -Zr3+ could facilitate the adsorption of methacrolein substrate. • The electron-rich Auδ- species could promote the C H bond activation of the negatively charged intermediate. Constructing abundant metal-support interfacial active sites is an effective strategy to boost catalytic performance toward interfacial electronic structure-sensitive reactions, such as oxidative esterification of oxygenates. Herein, we successfully promote the generation of the interfacial active sites via tuning the crystal phases of Au/ZrO 2 catalysts. Multi-characterizations (such as in-situ FT-IR spectra and reaction kinetics) and density functional theory (DFT) calculations demonstrated that the interfacial Auδ--O V -Zr3+ structure with the synergistic effect exhibits strong electrons transfer from tetragonal-ZrO 2 to Au atom. Specifically, the O V -Zr3+ could facilitate the adsorption of methacrolein substrate, and the electron-rich Auδ- species could promote the C H bond activation of the CH 2 C(CH 3)CHOOCH 3 intermediate. Therefore, the interface-rich Au/t-ZrO 2 catalyst achieved nearly 90 % yield of MMA and excellent catalyst stability without the incorporation of second promoter. The outcome of this work could provide some insights into developing an efficient Au-based catalyst in the oxidative esterification system. [ABSTRACT FROM AUTHOR]

We prepared a series of highly dispersed tetrahedrally coordinated tungsten catalysts with different Si/Al ratios by a simple "top-down" method for catalytic cracking of 1-hexene to propene. High 1-hexene conversion (>97%) and propene selectivity (>40%) could be maintained at 575°C over the W-ZSM-5(60) catalyst. [Display omitted] • Stability of the Si-O-Al structure in the W-ZSM-5 framework was enhanced. • Active tetrahedrally coordinated W (VI) species were highly dispersed on ZSM-5 catalysts. • Superior propene selectivity was achieved over W-ZSM-5 (60) catalysts. • The mechanism of W-ZSM-5 on the 1-hexene cracking reaction path were clarified. Reasonable regulation of the acidity of ZSM-5 could fundamentally improve the catalytic performance for the cracking of low-carbon olefins to propene. Herein, a series of ZSM-5 catalysts with highly dispersed tetrahedrally coordinated W(VI) species were prepared for the catalytic cracking of 1-hexene to propene by a simple "top-down" method. Multi-characterizations revealed that the introduction of W enhanced the stability of the Si-O-Al structure in W-ZSM-5 by eliminating the non-skeleton aluminum and excessive Brønsted acid sites, leading to a superb resistance to carbon/coke deposition. Moreover, the Lewis acid sites originated from the active tetrahedrally coordinated W (VI) species improved the propene selectivity via inhibiting the polymerization of products. In addition, through the optimization of various parameters (such as Si/Al ratio, temperature and weight hourly space velocity), high 1-hexene conversion (>97%) and propene selectivity (>40%) could be maintained at 575 °C over the W-ZSM-5(60) catalyst during 30 h long period reaction. This work may provide some new insights for the effect of W-based catalysts on acid composition in the cracking of light olefins to propene. [ABSTRACT FROM AUTHOR]

Based on density functional theory (DFT) calculation and microkinetic analysis, metal single-atom-doped ZSM-5 zeolite catalysts for naphtha cracking are screened. The calculation results show that the strong electronic interaction between metal single atom and zeolite skeleton (especially Ag and Cu) could enhance structural stability. The volcanic diagram of turnover frequency shows that Ag and Cu doped ZSM-5 zeolite catalyst is at the top of the volcano, which is close to the best choice. [Display omitted] • Metal single-atom-doped ZSM-5 zeolite catalyst exhibits good structural stability. • The adsorption of naphtha hydrocarbon molecules and the activation of C–H bond are greatly promoted. • The binding energy of carbon and hydrogen can be used as a descriptor for the catalytic cracking of naphtha on M−ZSM−5. • Ag and Cu single-atom-doped ZSM-5 are predicted to exhibit excellent catalytic activity. • Mo and Pd single-atom-doped ZSM-5 display great potential in the enhancement of propylene selectivity. Metal doped ZSM-5 catalyst has attracted much attention due to its unique catalytic activity for C–H bond activation. In this work, based on density functional theory (DFT) calculations and microkinetic analysis, we prospectively explored the catalytic activity of 12 kinds of transition metals (M = Fe, Co, Ni, Cu, Mo, Ru, Rh, Pd, Ag, W, Pt, Au) single-atom-doped ZSM-5 zeolite catalysts in the catalytic cracking of naphtha. The results show that there is a strong electronic interaction between metal atom and ZSM-5 skeleton. This induced stable structure could improve the adsorption ability of hydrocarbon, thus promoting the activation of C–H bond and the cracking of carbenium ion. Moreover, C and H binding energy were identified as descriptors in describing catalytic activity via good scaling relations. The turnover frequency volcano diagram shows that the Ag and Cu doped ZSM-5 zeolite catalyst is close to the best choice. In addition, Pd and Mo are potential metal choices with good selectivity through selectivity analysis. This work has important guiding significance for understanding the fluid catalytic cracking (FCC) mechanism and designing high-efficiency cracking catalysts. [ABSTRACT FROM AUTHOR]

[Display omitted] • A novel OLED material with AIDF property has been designed and synthesized. • 1,10-Phenanthroline was selected as acceptor to construct OLED material for the first time. • Non-doped solution-processed OLED achieved EQE max up to nearly 20%. The development of efficient non-doped organic luminescent materials is challenging work due to the existence of aggregation-caused quenching (ACQ) effect in most of emitters. Here, 1,10-phenanthroline (Phen) with a rigid structure was selected as acceptor unit, which could well limit intramolecular vibrations and rotations. According to the Ullmann coupling, the twisted tert -butyldiphenylamine-modified carbazole named N 3, N 3, N 6, N 6-tetrakis(4-(tert -butyl)phenyl)-9H-carbazole-3,6-diamine (tBuPhACz) was introduced into 2, 9-position of the Phen to afford tBuPhACz-Phen as target material, which not only can limit the π–π stacking of acceptor, but also could obtain the TADF and AIE effects due to the twisted D-A structure. The non-doped neat film of tBuPhACz-Phen shown high photoluminescence quantum yield (PLQY) of 76.5 %. The non-doped solution-processed electroluminescent devices obtained high performance with the maximum external quantum (EQE max) up to 19.7 %. This result illustrated that the performance of this device is one of the best in the non-doped solution-processed OLEDs. [ABSTRACT FROM AUTHOR]

• A biodegradable, transparent, and antibacterial sodium alginate-based triboelectric nanogenerator is proposed. • A vacuum filtration method was used for preparing patterned transparent conductive sodium alginate/AgNWs electrodes. • Sodium alginate/glycerol substrate have good adhesion to realize the complete transfer of the AgNWs pattern. • The triboelectric nanogenerator has been used as a self-powered tactile sensor. The utilization of natural biomaterials in the construction of triboelectric nanogenerators (TENG) has significant implications for the advancement of sustainable self-powered devices. Sodium alginate (SA), an eco-friendly and biodegradable triboelectric material with excellent transparency, is considered an ideal material for wearable TENGs. In this work, we report a biodegradable, transparent, and antibacterial SA-based TENG for mechanical energy harvesting and self-powered tactile sensing. The addition of glycerol, an environment-friendly additive, can enhance flexibility and adhesiveness of the SA, which resulted in well-transferred AgNWs/SA electrodes with high transparency and conductivity. The major parameters that affect the output performance of the fabricated TENG are investigated, including the frequency, thickness and area of the triboelectric layers. The output voltage, transferred charge, and peak power of the TENG could reach up to 53 V, 18 nC, and 4 μW, respectively, which is sufficient to power small electronic devices. In addition, the fabricated TENG device also shows excellent antibacterial and biodegradable capabilities. Finally, the TENG is demonstrated to be an effective self-powered tactile sensor for pressure mapping, human movement monitoring, and wearable human–machine interfacing. This work provides a new strategy to design flexible transparent TENGs with biodegradable SA and paves the way for developing next-generation self-powered transient electronics. [ABSTRACT FROM AUTHOR]

[Display omitted] • The supercritical CO 2 fluid with excellent permeability could construct uniform and injected oxygen defect engineering. • The modified cathode shows an initial coulombic efficiency of 96.6%, excellent capacity retention of 91.96% at 1C after 200 cycles. • The injected oxygen defect extends protection into bulk region, suppresses unfavorable lattice volume change and preserves structural integrity. • Oxygen defects reduce orphaned O energy level and narrow the energy gap between TM nd orbitals and O 2p orbitals to improve anionic reversibility. Lithium-rich layered cathode materials are considered to be research focus of cathode candidates for next-generation lithium-ion batteries due to their high specific capacity and low cost. However, lattice deoxidation associated with elemental migration and internal local shrinkage usually results in deteriorated cyclic performance and notorious voltage attenuation, severely limiting its application. In this paper, we have successfully injected uniform oxygen defects into surface region of Li 1.2 Ni 0.13 Co 0.13 Mn 0.54 O 2 primary particles under the high-pressure and weak carbonate environment. Various experimental investigations indicate that the injected robust oxygen defects can not only mitigate detrimental interfacial reactions but also suppress unfavorable lattice variation and particle breakage. More importantly, theoretical calculations unravel the critical roles of oxygen defects in regulating energy band structure for strengthened anionic reversibility. Owing to stabilization effects of unique oxygen defect engineering, the modified Li 1.2 Ni 0.13 Co 0.13 Mn 0.54 O 2 cathode has harvested dramatically enhanced electrochemical performance including a high initial coulombic efficiency of 96.6%, an outstanding capacity retention of 91.96% (1C, 200 cycles) and suppressed voltage decay of only 1.62 mV per cycle. Therefore, this facile and effective defect engineering strategy could establish new guidance for promoting practical application of Li-rich Mn-based cathode material. [ABSTRACT FROM AUTHOR]

[Display omitted] • A highly sensitive near-infrared organic photodetector is demonstrated by the introduction of a p-doped hole transport layer. • The p-doping strategy leads to an upward shift of the energy levels, which increases the reverse electron injection barrier and charge collection efficiency simultaneously, thus augmenting the external quantum efficiency. • With improved conductivity and reduced trap states, the optimized device exhibits an ultra-low dark current density of 0.13nA cm−2 at −1 V and a highest specific detectivity of 6.02 × 1013 Jones at 800 nm. Organic photodetectors (OPDs) have gained increasing interest for their remarkable opto-electronic performances and compatibility with flexible devices. However, the commonly occurring high dark current and low detectivity severely reduce the performance and hinder the commercialization of near-infrared photodetectors. Here, we introduce a universal strategy of a p-doped hole transport layer to realize highly sensitive photodetectors. The dark current is significantly reduced by mitigating the reverse charge injection. As a result, the optimized OPD consisting of PM6:Y6 as active layer and 1 nm F 4 TCNQ p-doped PBTTT as hole transport layer exhibits an ultra-low dark current of 0.13nA cm−2 at −1 V, which is one the best performed near-infrared OPDs ever reported and comparable to commercialized silicon photodetectors. A maximum specific detectivity of 6.02 × 1013 Jones at 800 nm is achieved with improved charge collection efficiency and reduced trap states. The potential commercial application in image sensing is presented by integrating optimized OPDs into high-pixel-density arrays, further demonstrating the significance of the improved detection characteristics in capturing high-quality sample images with this technology. The insights provided in our study have profound implications for the design and optimization of high-performance OPDs spanning the ultraviolet to near-infrared range. [ABSTRACT FROM AUTHOR]

Pervaporation offers advantages over traditional separation processes, but there is still lack of scale-up methods and manufacturing systems to easily and controllably obtain the defect-free membranes. In this work, poly(dimethylsiloxane)/polysulfone composite membranes were scaled up using a roll-coating method. The thickness of the poly(dimethylsiloxane) separation layer was successfully controlled on polysulfone substrate by roll-coating different layers. The membranes are used for separating ethanol/water mixtures. The pervaporation experiments were performed (i) in the laboratory using a radial cell with a membrane area of 0.0028 m 2 ; (ii) in a large cell using a plate-and-frame module with membrane area of 0.36 m 2 ; and (iii) in a pilot plant located at an industrial site, with a plate-and-frame module and total membrane area of 2.16 m 2 . On-site operations showed that the flux of 1000–1200 g m −2 h −1 with 60–65 wt% ethanol in permeate was achieved by the pilot-scale pervaporation facility, which demonstrated technical feasibility for industrial application. [ABSTRACT FROM AUTHOR]

PDA-GO-CeO 2 is employed as the multifunctional filler to prepare PDA-GO-CeO 2 -EP composite coating. PDA-GO-CeO 2 shows excellent dispersion and compatibility in epoxy resin, which further improves the compactness of the coating. Meanwhile, thanks to the physicochemical characteristics of PDA-GO-CeO 2 and its interaction with epoxy resin, PDA-GO-CeO 2 -EP composite coating exhibits high adhesion force, physical barrier, and reliable active protection, anti-UV aging abilities. [Display omitted] • Low defect functionalized PDA-GO-CeO 2 are prepared via a facile stepwise method. • PDA-GO-CeO 2 strengthens the interface structure coating/metal system. • PDA-GO-CeO 2 -EP coating exhibits excellent anti-corrosion and anti-UV abilities. In the marine environment, besides external damage and internal defects, ultraviolet (UV) radiation is also a pivotal factor affecting the stable properties of coatings. Improving the anti-UV aging and active protection properties is beneficial to prolong the service life of coatings. Herein, the PDA-GO-CeO 2 composite material is obtained through a facile stepwise growth of polydopamine (PDA) and CeO 2 on GO nanosheets and further preparing a multifunctional anti-corrosion PDA-GO-CeO 2 -EP coating. As expected, composite coating displays strong adhesion force (6.9 MPa) and tensile strength (21.1 MPa), profiting from the enhanced crosslinking density and interface structure caused by PDA-GO-CeO 2 and resin matrix interaction. Since low defect functionalized PDA-GO-CeO 2 constructs the reinforced physical barrier, the anti-corrosion ability of PDA-GO-CeO 2 -EP coating (109.7 Ω·cm2) is more dependable than those of EP (106.7 Ω·cm2), GO-EP coating (108.8 Ω·cm2) and PDA-GO-EP (109.1 Ω·cm2) coatings after immersing in 3.5 wt.% NaCl solution for 100 d. Thanks to the synergistic effect of PDA/CeO 2 , the active protection performance of PDA-GO-CeO 2 -EP coating is endowed, which is further proved through the in situ scanning vibrating electrode technique (SVET). Following the UV aging treatment, PDA-GO-CeO 2 -EP coating shows minor gloss loss (20.4 %) and better adhesion force (4.3 MPa). Furthermore, the resistance value of PDA-GO-CeO 2 -EP coating is 7.03 × 106 Ω cm2 after 30 d immersion in saline solution, which is 242 times greater than that of EP coating (2.90 × 104 Ω cm2). This dependable performance of PDA-GO-CeO 2 -EP coating comes from the reflection, refraction, and absorption of UV rays by nanoscale CeO 2 particles. Consequently, this work offers a simple and promising strategy for fabricating multifunctional long-term protection coatings, thus hopefully extending the service life of marine engineering equipment. [ABSTRACT FROM AUTHOR]

[Display omitted] • A method to control the surface Mo:C ratio by carbonization flow is discovered for the first time. • The relationship between the surface Mo:C ratio and the reactivity is established. • The low temperature water gas shift reaction activity depends on the electron transfer capability of the surface. • The catalysts with low Mo:C ratio improve catalyst stability. The low-temperature water–gas shift (WGS) reaction is an important industrial process for producing hydrogen and reducing carbon dioxide emissions. The α-MoC 1-x catalysts have shown promising performance in WGS reactions, but their activities are highly dependent on the surface structure. In this study, we investigated the effect of surface Mo and C ordinations on the low-temperature WGS activity of Pt/α-MoC 1-x catalysts using both experimental and theoretical methods. Our results reflected that as Mo: C ratio decreases, the surface free carbon and reduced number of Mo active sites led to a weakened electron transfer ability, resulting in poor catalytic activity. The 0.4% Pt/α-MoC 1-x -50 catalyst displayed superior hydrogen production activity and low apparent activation energy (E app = 58.5 kJ/mol) at low temperatures (100–200 °C). Our density functional theory (DFT) calculations revealed that the high reactivity of the 0.4% Pt/α-MoC 1-x -50 catalyst was due to the strong electron transfer capability and increased number of surface Mo active sites. This study provides new insights into the structure–activity relationship and stability of α-MoC 1-x catalysts for the WGS reaction and lays the foundation for the design of WGS catalysts with high activity and stability at low temperature. [ABSTRACT FROM AUTHOR]

[Display omitted] • W doping regulates FeO x lattice oxygen mobility toward matched reaction kinetics. • W-doped FeO x is efficient for chemical looping oxidative dehydrogenation of ethane. • The over-quick FeO x reduction leading to over-oxidation is inhibited by W addition. • Dehydrogenation active period is prolonged due to moderate lattice oxygen reactivity. The precise regulation of lattice oxygen mobility toward matched surface reaction kinetics is the key issue for rational design of chemical looing oxygen carriers. Herein, we successfully regulated lattice oxygen reactivity of FeO x redox catalyst via a W-doping strategy to realize efficient chemical looping oxidative dehydrogenation (CL-ODH) of ethane to ethylene. Specifically, the addition of W could significantly increase the binding energy of Fe-O bond, inhibiting the over-quick lattice oxygen migration toward over-oxidation. On this basis, the mild reduction of active Fe 3 O 4 and slowly released oxygen ions involving in dehydrogenation at a matched kinetic rate could greatly prolong the active period, leading to a record high ethane processing capacity (120 ml·g cat −1·cycle−1) and productivity of ethylene (selectivity ∼83 %) during continuous dehydrogenation-regeneration cycles. This work provides a highly active CL-ODH catalyst and new insight into metal oxide redox chemistry. [ABSTRACT FROM AUTHOR]

[Display omitted] • The maximum VFA production was 516 ± 6.0 mg COD/g VSS through AES pretreatment. • Sludge solubilization and hydrolysis were dramatically enhanced. • AES had a positive effect on municipal ES acidification process. • AES pretreatment severely inhibited microbial communities related to methanogenesis. • AES was highly biodegradable but not a substrate for VFA production. The conventional approach of anaerobic fermentation of excess sludge (ES) to produce volatile fatty acids (VFA) is limited by its poor efficiency and secondary pollution. Herein, a new strategy was developed for improving VFA production from the ES by sodium alcohol ether sulphate (AES) pretreatment. A maximum VFA yield of 516 ± 6.0 mg COD/g VSS was obtained with 0.28 g AES/g SS. It was proved that AES pretreatment had a synergistic effect on the enhancement of ES flocs solubilization, as well as hydrolysis and acidification of organic compounds in the ES. Meanwhile, the hydrolytic and acid-producing bacteria (i.e., Actinobacteria and Firmicutes) were enriched, while the VFA consumers (i.e., Halobacterota) were reduced by AES pretreatment, which resulted in the improved efficiency of VFA accumulation. Thereby, the AES had a positive effect on the conversion of organic matters in the ES to VFAs. Additionally, up to 97% of added AES could be degraded naturally during the treatment process, relieving the secondary pollution to environment. The strategy of AES pretreatment proposed in this work may provide a viable approach for ES treatment and relatively low-cost recovery of waste biomass. [ABSTRACT FROM AUTHOR]

[Display omitted] • An SDS-assisted aldehyde-amine IP process is developed to prepare loose NF membranes. • The aldehyde-amine reaction is helpful to form a skin layer with loose structure. • The membrane has a high water permeance of 76 LMH bar−1 and MB rejection of 99%. • The membrane shows a high dye/salt selectivity with a Na 2 SO 4 rejection of 4.19%. • The membrane has a good anti-fouling ability and excellent operation stability. Loose nanofiltration (NF) membranes based on the interfacial polymerization (IP) reaction between glutaraldehyde (GA) and amine are developed for dye/salt separation. Branched tris(2-aminoethyl)amine (TETA) and linear hydrazine (HZ) are chose as aqueous amine monomers. Due to the low reactivity of aldehyde and amine under room temperature, plenty of evenly distributional cavities with exposed amine groups form in the matrix, favoring to enhance the membrane permeance, hydrophilicity and dye/salt selectivity. Notably, sodium dodecylsulphate (SDS) is introduced to regulate the monomer diffusion behavior and narrow the reaction zone, facilitating the formation of thin and defect-free skin layer. The resulting GA-TETA/HZ-L membrane shows a high water permeance of 76 LMH bar−1 as well as an excellent dye/salt selectivity (99% rejection for methyl blue (MB) and 4.19% rejection for Na 2 SO 4). Furthermore, the membrane shows a good anti-fouling property for bovine serum albumin (BSA), humic acid (HA) and sodium alginate (SA), benefiting from its smooth surface, high hydrophilicity and negative zeta potential. The newly demonstrated SDS-assisted aldehyde-amine IP process provides a novel and facile approach to develop the high-performance loose NF membrane for various fields, especially dye recycle and purification. [ABSTRACT FROM AUTHOR]

Our study developed the one-step catalytic cracking conceptual design using a two-stage riser reactor (OSCO). Molecular-level process models and multi-objective optimization strategies are also carried out. Results show that the OSCO process exhibits superior techno-economic, society, people's livelihood, and environmental performance. [Display omitted] • A novel process is proposed to crack naphtha, kerosene, diesel and heavy oil in the two-stage riser reactor efficiently. • A novel integration model of mixed fraction structure and molecular level is proposed. • The multi-objective optimization strategies using systematic solution algorithm are performed. • The novel process shows superior techno-economic, society, people's livelihood, and environmental performance. With the demand for vehicle fuels (i.e., gasoline and diesel) is expected to decline soon, crude oil to chemical technology exhibits great potential to drive the next industry transition. This megatrend has led to studies on maximizing the production of low-carbon petrochemicals at the cost of fuels, which requires aggressive ways of converting oil into chemicals in a clean and efficient pattern. Herein, we proposed a novel process, termed OSCO, to crack naphtha, kerosene, diesel and heavy oil in a two-stage riser reactor efficiently, which can perform several refining procedures in the two-stage riser reactor vessel. A novel integration model of mixed fraction structure and molecular level is proposed. The multi-objective optimization strategies are also carried out to solve the optimization problem. As a result, the OSCO process can stably convert untreated heavy Daqing crude oil into light olefins with total yields of ethylene and propylene over 33 wt%, which also exhibits superior techno-economic, society, people's livelihood, and environmental performance. These insights may have a positive pushing role in engineering design, process intensification, and the optimization of direct catalytic cracking of crude oil. [ABSTRACT FROM AUTHOR]

[Display omitted] • Fe and K were introduced into Pt/MOR catalysts to modulate the reactants adsorption in CO-PROX. • 1Pt0.1 K/Fe-MOR achieves 100% CO conversion and 60–70% CO 2 selectivity within 130–200 °C. • Fe improves the CO conversion by providing more oxygen vacancies to activate O 2. • K promotes the CO 2 selectivity by enhancing CO adsorption and weakening H 2 adsorption on Pt. Developing efficient and stable catalysts for preferential oxidation of CO (CO-PROX) within a wide temperature window is significant for the industrial hydrogen resource purification process. Herein, dual promoters of Fe and K were deliberately introduced to the mordenite supported Pt catalyst for optimizing the adsorption behaviors of reactants in CO-PROX. The optimal 1Pt0.1 K/Fe-MOR catalyst can achieve 100% CO conversion and 60–70% CO 2 selectivity (the ratio of CO/O 2 is 1:1) under the realistic application temperature range (130–200 °C), and remains catalytically stable during 65 h testing at 140 °C. A combination of detailed characterizations and density functional theory (DFT) simulations show that Fe species can avoid the co-adsorption of O 2 on the Pt sites by providing more oxygen vacancy to activate O 2 , while K species will further enhance the adsorption of CO and repulse the adsorption of H 2 on Pt surface. Therefore, the optimized adsorption of CO, O 2 and H 2 results in a total CO conversion and high CO 2 selectivity in high temperature range. [ABSTRACT FROM AUTHOR]