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Plastic pollution poses a pressing environmental challenge in modern society. Chemical catalytic conversion has emerged as a promising solution for upgrading waste plastics into valuable liquid alkanes and other high value products. However, the current methods yield mixed products with a wide carbon distribution. To address this challenge, we present a bifunctional catalytic system consisting of β zeolite mixed hierarchical Pt@Hie‐TS‐1, designed for the conversion of low‐density polyethylene (LDPE) into liquid alkanes. This system achieves a 94.0 % yield of liquid alkane, with 84.8 % of C5−C7 light alkanes. Combined with in situ FTIR and molecular dynamics simulation, the shape‐selective mechanisms is elucidated, which ensures that only olefins of the appropriate size can diffuse to the encapsulated Pt sites within the zeolite for hydrogenation, resulting in an ultra‐narrow product distribution. Furthermore, by optimizing the micro‐mesopores of Pt@Hie‐TS‐1, the scaling relationship between the pore structure and the conversion/selectivity is identified. The rapid diffusion of olefins within these micro‐mesopores significantly enhances the catalytic efficiency. Our findings contribute to the design of efficient catalysts for plastic waste valorization. [ABSTRACT FROM AUTHOR]

Plastic pollution poses a pressing environmental challenge in modern society. Chemical catalytic conversion has emerged as a promising solution for upgrading waste plastics into valuable liquid alkanes and other high value products. However, the current methods yield mixed products with a wide carbon distribution. To address this challenge, we present a bifunctional catalytic system consisting of β zeolite mixed hierarchical Pt@Hie‐TS‐1, designed for the conversion of low‐density polyethylene (LDPE) into liquid alkanes. This system achieves a 94.0 % yield of liquid alkane, with 84.8 % of C5−C7 light alkanes. Combined with in situ FTIR and molecular dynamics simulation, the shape‐selective mechanisms is elucidated, which ensures that only olefins of the appropriate size can diffuse to the encapsulated Pt sites within the zeolite for hydrogenation, resulting in an ultra‐narrow product distribution. Furthermore, by optimizing the micro‐mesopores of Pt@Hie‐TS‐1, the scaling relationship between the pore structure and the conversion/selectivity is identified. The rapid diffusion of olefins within these micro‐mesopores significantly enhances the catalytic efficiency. Our findings contribute to the design of efficient catalysts for plastic waste valorization. [ABSTRACT FROM AUTHOR]

Metal oxides@metal–organic framework (MOFs)-based core/shell nanostructures demonstrate promising potential in catalytic hydrogenations. However, the direct nucleation and growth of MOFs on the topologically diverse surfaces of metal oxides face significant challenges due to the high interfacial energy resulting from topological mismatches. Herein, we present a facile in situ growth strategy for directly assembling an MIL-53-(Al) layer on the surface of CeO2 nanospheres at low temperatures by mixing and stirring CeO2 nanospheres and MIL-53-(Al) precursors without requiring sacrificial templates or additional surface modifications. Moreover, key factors such as reaction time, temperature, and the types of aluminum salts and ligands are systematically explored to comprehensively understand the nucleation behavior of MOFs shells. Notably, when active Pt nanoparticles are sandwiched between the CeO2 core and the MIL-53-(Al) shell, the MIL-53-(Al) effectively stabilizes the Pt nanoparticles and enhances the selectivity of hydrocinnamaldehyde in cinnamaldehyde hydrogenation. CeO2/Pt@MIL-53-(Al) achieved more than twice the selectivity for HCAL compared to CeO2/Pt and even outperformed Pt/MIL-53-(Al). Undoubtedly, this study provides distinctive insights into the nucleation and growth mechanisms of MOFs on metal oxides, expands the strategies for fabricating metal oxides@MOFs core/shell nanostructure, and proposes innovative ideas and possibilities for broadening the application domains of MOFs-based materials. [ABSTRACT FROM AUTHOR]

Investigating the catalytic behavior of the liquid fuels on well‐defined dual sites is crucial in understanding electrocatalytic reactions. Herein, concept holding bidirectional electronegativity dominant d‐band center regulation on Pt‐Rh dual sites is proposed to tailor the catalytic behaviors toward methanol oxidation reaction (MOR). The Pt‐Rh dual sites are engineered by introducing the low‐electronegativity Ga/Ni and high‐electronegativity W elements in PtRhGaNiW high‐entropy alloy (HEA), which can drive the electron cloud of Pt‐Rh dual sites redispersing over a wide orbit window. The optimized Pt‐Rh dual sites in PtRhGaNiW HEA nanowire achieve a high current density of 5.61 mA cm−2 toward MOR, which is 3.38 and 9.75 times than that of PtRh alloy (1.66 mA cm−2) and Pt/C (0.57 mA cm−2), as well as remarkably stability and COads poisonous resistance. The theoretical calculations further disclose that the redistribution of surface localized electron around Pt‐Rh dual sites can promote direct oxidation of ─OH, and accelerate the COads oxidation/removal. This work presents a breakthrough in designing advanced dual site electrocatalysts for complex catalytic reactions. [ABSTRACT FROM AUTHOR]

Designing high efficiency platinum (Pt)‐based catalysts for methanol oxidation reaction (MOR) with high "non‐CO" pathway selectivity is strongly desired and remains a grand challenge. Herein, PtRuNiCoFeGaPbW HEA ultrathin nanowires (HEA‐8 UNWs) are synthesized, featuring unique cascaded p–d orbital hybridization interaction by inducing dual p‐block metals (Ga and Pb). In comparison with Pt/C, HEA‐8 UNWs exhibit 15.0‐ and 4.2‐times promotion of specific and mass activity for MOR. More importantly, electrochemical in situ FITR spectroscopy reveals that the production/adsorption of CO (CO*) intermediate is effectively avoided on HEA‐8 UNWs, leading to the complete "non‐CO" pathway for MOR. Theoretical calculations demonstrate the optimized electronic structure of HEA‐8 UNWs can facilitates a lower energy barrier for the "non‐CO" pathway in the MOR. [ABSTRACT FROM AUTHOR]

Attaining high hydrogenation performance under mild conditions, especially at ambient pressure, remains a considerable challenge due to the difficulty in achieving efficient mass transfer at the gas-liquid-solid three-phase interface. Here, we present a zeolite nanoreactor with joint gas-solid-liquid interfaces for boosting H2 gas and substrates to involve reactions. Specifically, the Pt active sites are encapsulated within zeolite crystals, followed by modifying the external zeolite surface with organosilanes. The silane sheath with aerophilic/hydrophobic properties can promote the diffusion of H2 and the mass transfer of reactant/product molecules. In aqueous solutions, the gaseous H2 molecules can rapidly diffuse into the zeolite channels, thereby augmenting H2 concentration surround Pt sites. Simultaneously, the silane sheath with lipophilicity nature promotes the enrichment of the aldehydes/ketones on the catalyst and facilitates the hydrophilia products of alcohol rediffusion back to the aqueous phase. By modifying the wettability of the catalyst, the hydrogenation of aldehydes/ketones can be operated in water at ambient H2 pressure, resulting in a noteworthy turnover frequency up to 92.3 h−1 and a 4.3-fold increase in reaction rate compared to the unmodified catalyst.A modified zeolite nanoreactor with organosilanes boosts hydrogenation of aldehydes/ketones in water at ambient pressure. This method, promoting H2 and substrate mass transfer, achieves a 4.3-fold increase in reaction rate, offering a sustainable approach for organic synthesis under mild conditions. [ABSTRACT FROM AUTHOR]

The application of porous silica microspheres in the field of materials has made a breakthrough because of its unique properties. Nevertheless, owing to the limitation of technology, there was no simple and inexpensive method to industrialize porous silica microspheres which could be adjusted pore size and pore size distribution. In this paper, porous silica microspheres were prepared using silica nanoparticles with different morphologies and particle sizes as silica sources by the polymerization-induced colloid aggregation (PICA) method. The particle size, morphology, porosity, and thermal stability of the porous silica microspheres were analyzed by optical microscopy, field emission scanning electron microscopy (SEM), nitrogen adsorption analysis, and thermogravimetric analyzer (TGA). The results showed that the porous silica microspheres prepared with branched-chain silica nanoparticles as the silica source had an extensive pore size distribution and many macro- and mesoporous structures. By changing the size and morphology of silica nanoparticles, it reached the purpose of regulating pore size and pore size distribution of porous silica microspheres. The porous silica microspheres were loaded with copper catalyst and subjected to furfural hydrogenation reaction. The results showed that the catalytic effect of the porous silica microspheres prepared with branched-chain silica as the carrier was suitable, and the catalytic efficiency was 85% when the mass ratio of urea-formaldehyde resin to silica was 1/2. It was 1.28–2.57 times higher than that of other microspheres-loaded catalysts. [ABSTRACT FROM AUTHOR]

Heterogenous BPDC−RuO2−CeO2 catalyst derived from Ce−BPDC MOFs can successfully enable the oxidation of amines to nitriles under mild conditions (1 atm O2, H2O as a solvent, room temperature). The catalytic system has the good compatibility with benzylic and aliphatic amines. Lewis acid‐base pairs [Ru−O−Ce−Vö] formed by the combination of acidic oxygen vacancy and basic oxygen pair Ru−O−Ce on the surface of the catalyst is the key factor for the catalytic activity. The mechanical experiments indicate that amines adopt the step‐by‐step dehydrogenation process to nitriles in this transformation. Moreover, the catalyst could be recycled up to six times without the evident loss of catalytic activity and the change of morphology. [ABSTRACT FROM AUTHOR]

A well‐defined catalyst with platinum (Pt) and gold (Au) encapsulated in micropore and mesopore of micro‐mesoporous zeolite (Pt‐Au/TMSN), respectively, was designed to investigate the original active sites of semi‐hydrogenation. Specifically, hydrogen molecules are dissociated on Pt nanoclusters (NCs) to form hydrogen atoms that migrate to the surfaces of TMSN zeolite and Au nanoparticles (NPs) through hydrogen spillover effect. The characterization and catalytic results demonstrate that the Au NPs and zeolite surface are both identified as the semi‐hydrogenation sites. Especially, the Au active site with low adsorption ability of alkene possesses preferable selectivity in the semi‐hydrogenation of phenylacetylene and 1,5‐cyclooctadiene. Noteworthy, the Pt‐Au/TMSN exhibits higher selectivity of phenylethylene and cyclooctene than Pt/TMSN, as well as higher turnover frequency than Au/MSN. This work creates an effective regulation strategy of active sites working with a tandem mechanism for improving the semi‐hydrogenation performance. [ABSTRACT FROM AUTHOR]

Although PtRu alloy nanocatalysts have been certified to possess excellent electrocatalytic performance and CO‐poisoning tolerance toward formic acid and methanol electro‐oxidation, the unaffordable usages of ruthenium (Ru) and platinum (Pt) have greatly limited their widespread adoption. Here, a facile one‐pot method is reported for implanting atomic dispersed Ru in PtNi colloidal nanocrystal clusters with different Ru/Pt/Ni molar ratios, greatly reducing the dosages of Pt and Ru, and further improving the catalytic performances for the electro‐oxidation of formic acid and methanol. Through simple control of the amount of Ni(acac)2 precursor, trimetallic Ru0.3Pt70.5Ni29.2, Ru0.6Pt55.9Ni43.5, Ru0.2Pt77.3Ni22.5, and Ru0.9Pt27.3Ni71.8 colloidal nanocrystal clusters (CNCs) are obtained. In particular, the Ru0.3Pt70.5Ni29.2 CNCs exhibit excellent specific activities for formic acid and methanol electro‐oxidation, that is, 14.2 and 15.3 times higher, respectively, than those of the Pt/C catalyst. Moreover, the Ru0.3Pt70.5Ni29.2 CNCs also possess better anti‐CO‐poisoning properties and diffusion ability than the other RuPtNi CNCs. The excellent formic acid and methanol electro‐oxidation activities of RuPtNi CNCs are ascribed to the optimal ligand effects derived from the Pt, Ni, and atomic dispersed Ru atoms, which can improve the OH adsorption ability and further the anti‐CO‐poisoning capability. This research opens a new door for increasing the electro‐oxidation properties of liquid fuels by using lower dosages of noble metals in Pt‐based catalysts. [ABSTRACT FROM AUTHOR]

Heterogeneously catalyzed, selective hydrogenation in the liquid phase is widely used in industry for the synthesis of chemicals. However, it can be a challenge to prevent active nanoparticles (e.g. palladium) from aggregation/leaching and meanwhile achieve high conversion as well as selectivity, especially under mild conditions. To address these issues, a CeO2 nanotube/Pd@MIL‐53(Al) sandwich‐structured catalyst has been prepared in which the MIL‐53(Al) porous shell can efficiently stabilize the palladium nanoparticles. When this catalyst was used in a tandem catalytic reaction involving the dehydrogenation of ammonia borane and the hydrogenation of phenylacetylene, remarkably, the hydrogen released from the dehydrogenation of ammonia borane boosted the catalytic process, with 100 % conversion of phenylacetylene and a selectivity of 96.2 % for styrene, even at room temperature and atmospheric pressure, within 1 min. This work therefore provides an alternative strategy for balancing the conversion and selectivity of liquid‐phase hydrogenation reactions. [ABSTRACT FROM AUTHOR]

Tuning the intrinsic strain of Pt‐based nanomaterials has shown great promise for improving the oxygen reduction reaction (ORR) performance. Herein, reported is a tunable surface strain in penta‐twinned ternary Pt–Cu–Mn nanoframes (NFs). Pt–Cu–Mn ultrafine NFs (UNFs) exhibit ≈1.5% compressive strain compared to Pt–Cu–Mn pentagonal NFs (PNFs) and show the superior activity toward ORR in an alkaline environment. Specifically, the specific and mass activity of Pt–Cu–Mn UNFs are 3.38 mA cm−2 and 1.45 A mg−1, respectively, which is 1.45 and 1.71 times higher than that of Pt–Cu–Mn PNFs, demonstrating that compressive strain in NFs structure can effectively enhance the catalytic activity of ORR. Impressively, Pt–Cu–Mn UNFs exhibit 8.67 and 9.67 times enhanced specific and mass activity compared with commercial Pt/C. Theoretical calculations reveal that compression on the surface of Pt–Cu–Mn UNFs can weaken the bonding strengths and adsorption of oxygen‐containing intermediates, resulting in an optimal condition for ORR. [ABSTRACT FROM AUTHOR]

Structure-engineered platinum-based nanoframes (NFs) at the atomic level can effectively improve the catalytic performance for fuel cells and other heterogeneous catalytic fields. We report herein, a microwave-assisted wet-chemical method for the preparation of platinum-copper-cobalt NFs with tunable defect density and architecture, which exhibit enhanced activity and durability towards the electro-oxidation reactions of methanol (MOR) and formic acid (FAOR). By altering the reduction/capping agents and thus the nucleation/growth kinetics, trimetallic platinum-copper-cobalt hexapod NFs with different density high-index facets are achieved. Especially, the rough hexapod nanoframes (rh-NFs) exhibit excellent specific activities towards MOR and FAOR, 7.25 and 5.20 times higher than those of benchmark Pt/C, respectively, along with prolonged durability. The excellent activities of the rh-NFs are assigned to a synergistic effect, including high density of defects and high-index facets, suitable d-band center, and open-framework structure. This synergistic working mechanism opens up a new way for enhancing their electrocatalytic performances by increasing defect density and high-index facets in open-framework platinum-based NFs. [ABSTRACT FROM AUTHOR]

Atomic control of the architecture, composition, and surface of multimetallic nanocrystals enables considerable enhancement of their electrocatalytic performance for renewable energy innovations. Herein, we report a general and facile approach for the synthesis of Pt-based nanoframe (NF) electrocatalysts with tunable inner architecture and surface configuration, which exhibit enhanced activity and durability towards the electro-oxidation of liquid fuels. By judiciously controlling the specific adsorption species and thus the nucleation/growth kinetics, trimetallic PtCuNi NFs with hexapod, octahedral, and concave architectures are obtained. Especially, the concave NFs show the highest specific activities towards methanol and formic acid oxidation reactions, 11.0 and 14.9 times higher than those of benchmark Pt/C, respectively, along with prolonged durability. The combination of CO stripping experiments and density functional theory (DFT) calculation reveals that the enhanced activity is derived from the optimization of defects, d-band centers, and further OH adsorption ability. For the first time, by correlating the inner architecture of NFs with the resulting electrocatalytic performance, we highlight the great potential of structural complexity for further optimization of multimetallic nanoframe electrocatalysts. [ABSTRACT FROM AUTHOR]

Pt-Based catalysts for the methanol oxidation reaction (MOR) are highly susceptible to poisoning due to the surface adsorption of reaction intermediates such as COads. Depositing Pt nanoparticles (NPs) on Ni(OH)2 to fabricate Pt–Ni(OH)2 interfaces is considered as a promising method to improve the stability of Pt-based catalysts because Ni(OH)2 could facilitate water dissociation in alkaline electrolytes to form OH adspecies and assist in the oxidative removal of COads on adjacent Pt sites. However, this supported structure rather limited Pt–Ni(OH)2 interfaces because only a small fraction of the Pt NP surface could come into contact with Ni(OH)2. Herein, this work has addressed a simple and efficient strategy to engineer novel-structure catalysts by tuning the properties of the interface of Pt-based NPs with high-index facets (HIFs). Pt1Ni1–Ni(OH)2 nanoparticles (NPs) were synthesized through Ni(OH)2 partially covering the HIFs of monodisperse Pt1Ni1 concave nanocubes (CNCs) in situ. Pt–Ni(OH)2 interfaces were characterized and over 40% of the Pt surface active sites fall within the periphery of Ni(OH)2. Thanks to the synergy of HIFs and abundant Pt–Ni(OH)2 interfaces, Pt1Ni1–Ni(OH)2 NPs exhibited remarkable catalytic performance towards the MOR in alkaline solution. [ABSTRACT FROM AUTHOR]

We developed a method for using atomic layer deposition (ALD)-formed layers of Al2O3 as a sacrificial template to generate MIL-53(Al). The MOF shell in the CeO2/Pd@MIL-53(Al) configuration not only stabilized the Pd nanoparticles, but also regulated the selectivity of the hydrogenation of unsaturated aldehydes. This work represents the first demonstration of ALD-formed layers of metal oxides serving as sacrificial templates in the design of MOF-shell-based sandwich-type structures. [ABSTRACT FROM AUTHOR]

Shape-controlled synthesis of Pt−Cu alloy nanocrystals (NCs) with unique geometries is of great importance in the rational design and deterministic synthesis of highly active electrocatalysts. Herein, Pt−Cu alloy NCs with concave octahedron (COH), porous octahedron (POH), yolk-shell (YSH), and nanoflower (NOF) structures were fabricated by altering the sequential reduction kinetics in a one-pot aqueous phase. The effect of the reaction kinetics on the formation of Pt−Cu bimetallic NCs with different morphologies was analyzed quantitatively. The concentrations of glycine and metal cation are demonstrated to play a key role in the reduction of Pt(IV) and Cu(II) ions; these significantly affected the morphology of Pt−Cu NCs. These Pt−Cu alloy NCs exhibit substantially enhanced catalytic activity and durability for methanol and formic acid oxidation compared to the commercial Pt/C catalyst. Specifically, the COH and NOF Pt−Cu NCs with more step atoms, intragranular dislocations, and protrusions showed superior electrochemical properties than those of POH and YSH Pt−Cu NCs. The structure-property relationship between the Pt−Cu NCs and their electrochemical performances was also investigated in depth. [ABSTRACT FROM AUTHOR]

Abstract: Mesoporous graphene is synthesized based on the chemical vapor deposition methodology by using heavy MgO flakes as substrates in a fluidized‐bed reactor. Subsequently, sulfur and nitrogen coincorporation into graphene frameworks is realized by the reaction between carbon atoms and thiourea molecules. The as‐obtained sulfur and nitrogen codoped mesoporous graphene (SNMG) exhibits remarkable capacitive energy‐storage behavior, as a result of well‐developed pore channels, in terms of that in a symmetric supercapacitor and lithium‐ion hybrid capacitor (LIHC). The ultrahigh durability of the SNMG/SNMG symmetric supercapacitor is demonstrated by long‐term cycling, for which no capacitance decay is found after 20 000 cycles. A LIHC constructed from commercial Li4Ti5O12 (LTO) as the anode and SNMG as the cathode is capable of delivering much enhanced lithium‐storage ability and better rate capability than that of activated carbon (AC)/LTO LIHC. Moreover, SNMG/LTO LIHC exhibits maximum energy and power densities of 86.2 Wh kg−1 and 7443 W kg−1 and maintains 87 % capacitance retention after 2000 cycles. [ABSTRACT FROM AUTHOR]

Abstract: Hollow materials with different configurations are of interest due to their unique structural features, which induce interesting properties e.g. catalysis. Here, the synthesis of asymmetrical hollow ball‐in‐tube (HBT) structured CeO2 is reported, which is achieved using a dual template engaged solid–liquid interfacial reaction. In this reaction, the SiO2 sphere (hard template)‐embedded Ce(OH)CO3 nanorod (sacrificial template) composite is first treated with NaOH solution, followed by an acid wash to obtain asymmetrical hollow structured CeO2. Such HBT structured CeO2 is demonstrated to be a good support for Au nanoparticles toward CO oxidation as compared to simple hollow CeO2 nanotubes, leading to significantly increase catalytic activity. [ABSTRACT FROM AUTHOR]

A series of novel catalysts consisting of nanosized Au particles confined in micro-mesoporous ZSM-5/SBA-15 (ZSBA) materials with platelet (PL), rod (RD), and hexagonal-prism (HP) morphologies have been synthesized in situ. These catalysts possess both SBA-15 and ZSM-5 structures and exhibit excellent stability of their active sites by confinement of the Au nanoparticles (NPs) within ZSBA. The catalysts have been characterized in depth to understand their structure-property relationships. The gold NP dimensions and the pore structure of the catalysts, which were found to be sensitive to calcination temperature and synthetic conditions, are shown to play vital roles in the reduction of 4-nitrophenol. Au/ZSBA-PL, with short mesochannels (210 nm) and a large pore diameter (6.7 nm), exhibits high catalytic performance in the reduction of 4-nitrophenol, whereas Au/ZSBA-HP and Au/ZSBA-RD, with long mesochannels and relatively smaller pore sizes, show poor catalytic activities. In the case of catalysts with different gold NP sizes, Au/ZSBA-PL-350 with an Au NP diameter of 4.0 nm exhibits the highest reaction rate constant (0.14 min) and turnover frequency (0.0341 s). In addition, the effect of the reaction parameters on the reduction of 4-nitrophenol has been systematically investigated. A possible mechanism for 4-nitrophenol reduction over the Au/ZSBA catalysts is proposed. [ABSTRACT FROM AUTHOR]

Nanocrystals (NCs) with a multiply-twinned structure possess great potential in the field of electrocatalysis. Reduced graphene oxide (rGO) has been employed as a support to further improve the stability and activity of catalysts. However, the twinned structure is thermodynamically unstable due to the high total free energy, and it is difficult to control the shape of the crystals during preparation, especially when grown directly on the surface of rGO. Herein, multiply-twinned structural Au–Ag decahedra and icosahedra were grown directly in situ on rGO through a facile approach under microwave irradiation. Thanks to the synergy of abundant twin defects and the electronic effect of the intimate contact/interaction between the Au–Ag alloy and the rGO, these as-prepared Au–Ag NCs/rGO hybrids exhibit excellent activity and stability towards the hydrogen evolution reaction. In particular, Au–Ag icosahedra/rGO exhibits Pt-like electrocatalytic activity and enhanced stability compared to commercial Pt/C. [ABSTRACT FROM AUTHOR]

Micro-mesoporous Beta-SBA-15 materials with platelet, sphere, short-rod and long-rod morphologies were in situ synthesized and used as the catalyst supports for hydro-upgrading of FCC gasoline. The characterization results revealed that the Beta-SBA-15 composites possessed both SBA-15 and Beta structures. And the materials with different morphologies exhibited different Brönsted and Lewis acid sites and pore sizes due to their corresponding synthesis conditions. The platelet Beta-SBA-15 which possessed short mesochannels with a large pore diameter had high diffusion ability. The sphere Beta-SBA-15 with more mesopore cavities, large surface area and suitable acidity exhibited outstanding isomerization and aromatization abilities. The catalytic results confirmed that the platelet CoMo/ABS-PL exhibited a high hydrodesulfurization (HDS) conversion (97.6%) while the sphere CoMo/ABS-SP catalyst showed the superior research octane number (RON) preservation ability, which were better than those of CoMo/ABS-SR (short-rod) and CoMo/ABS-LR (long-rod) catalysts. The excellent hydrodesulfurization, isomerization and aromatization abilities of CoMo/ABS-PL and CoMo/ABS-SP were attributed to the special morphology, mesochannels and appropriate acidity properties of the catalysts. Thus, the as-synthesized platelet and sphere Beta-SBA-15 materials have potential application in FCC gasoline hydro-upgrading. [ABSTRACT FROM AUTHOR]

Pt–Co nanocrystals with cube, dendrite and sphere shapes have been fabricated in air, hydrogen and nitrogen, respectively, at ambient pressure or 1 MPa. The Pt–Co nanocrystals with a chain-like structure, synthesized in nitrogen at 1 MPa, exhibited superior electrocatalytic activity and stability towards the methanol oxidation reaction. [ABSTRACT FROM AUTHOR]

The research progresses of typical selective hydrodesulfurization process and hydro-desulfurization-octane recovery process at home and abroad were reviewed. The processes and haracteristics of each process were compared. The current commercial hydrodesulfurization cataysts of FCC gasoline were also summarized. Finally, the development tendency of hydrodesulfuization technologies was put forward. [ABSTRACT FROM AUTHOR]