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Your search keyword '"Lu, Shengguo"' showing total 143 results
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143 results on '"Lu, Shengguo"'

17. Surface decoration of ceria nanoparticles as propane/air partial oxidation catalyst integrated in a micro-tubular solid oxide fuel cell.

Author

Guo, Jin, Yao, Yue, Yang, Wenhuan, Ma, Yue, Wang, Chengpeng, Yao, Yingbang, Tao, Tao, Lu, Shengguo, Zhao, Xiaobo, Wang, Chao, and Liang, Bo

Subjects
SOLID oxide fuel cells, PARTIAL oxidation, CERIUM oxides, PROPANE, PROPANE as fuel
Abstract

In this study, a ceria (CeO2) support, synthesized using a hydrothermal method, was decorated with nano-sized Ni-particles using an impregnation method. A micro-tubular solid oxide fuel cell (MTSOFC) was integrated with a corundum tube, in which the Ni-CeO2 (10 wt% Ni) served as the catalyst for partial oxidation (POX). Using propane and air, there was no noticeable deactivation in the MTSOFC over a 48-h period. The maximum power density (MPD) was 0.57 W cm −2 at 700°C using propane and air (12.3 vol% propane), which is 0.01 W cm−2 higher than the cell using 20 vol% of hydrogen (0.56 W cm −2). When using propane and air as fuel and operating at 700°C, MPD values for intermediate and inlet current collector modes were 0.57 and 0.48 W cm−2, respectively. Carbon deposition at the fuel inlet was determined to be the primary cause of low current collection efficiency. [ABSTRACT FROM AUTHOR]

Published
2023
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20. Enhanced Energy Storage Performance in Na0.5Bi0.5TiO3-Based Relaxor Ferroelectric Ceramics via Compositional Tailoring

Author

Jiang, Yuleng, primary, Niu, Xiang, additional, Liang, Wei, additional, Jian, Xiaodong, additional, Shi, Hongwei, additional, Li, Feng, additional, Zhang, Yang, additional, Wang, Ting, additional, Gong, Weiping, additional, Zhao, Xiaobo, additional, Yao, Yingbang, additional, Tao, Tao, additional, Liang, Bo, additional, and Lu, Shengguo, additional

Published
2022
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25. Enhanced Energy Storage Performance in Na 0.5 Bi 0.5 TiO 3 -Based Relaxor Ferroelectric Ceramics via Compositional Tailoring.

Author

Jiang, Yuleng, Niu, Xiang, Liang, Wei, Jian, Xiaodong, Shi, Hongwei, Li, Feng, Zhang, Yang, Wang, Ting, Gong, Weiping, Zhao, Xiaobo, Yao, Yingbang, Tao, Tao, Liang, Bo, and Lu, Shengguo

Subjects
FERROELECTRIC ceramics, ENERGY storage, LEAD titanate, RELAXOR ferroelectrics, DIELECTRIC breakdown, DIELECTRIC strength, PULSED power systems
Abstract

Owing to the high power density, excellent operational stability and fast charge/discharge rate, and environmental friendliness, the lead-free Na0.5Bi0.5TiO3 (NBT)-based relaxor ferroelectrics exhibit great potential in pulsed power capacitors. Herein, novel lead-free (1−x)(0.7Na0.5Bi0.5TiO3-0.3Sr0.7Bi0.2TiO3)-xBi(Mg0.5Zr0.5)O3 (NBT-SBT-xBMZ) relaxor ferroelectric ceramics were successfully fabricated using a solid-state reaction method and designed via compositional tailoring. The microstructure, dielectric properties, ferroelectric properties, and energy storage performance were investigated. The results indicate that appropriate Bi(Mg0.5Zr0.5)O3 content can effectively enhance the relaxor ferroelectric characteristics and improve the dielectric breakdown strength by forming fine grain sizes and diminishing oxygen vacancy concentrations. Therefore, the optimal Wrec of 6.75 J/cm3 and a η of 79.44% were simultaneously obtained in NBT-SBT-0.15BMZ at 20 °C and 385 kV/cm. Meanwhile, thermal stability (20–180 °C) and frequency stability (1–200 Hz) associated with the ultrafast discharge time of ~49.1 ns were also procured in the same composition, providing a promising material system for applications in power pulse devices. [ABSTRACT FROM AUTHOR]

Published
2022
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30. An Ultra-Long-Life Flexible Lithium–Sulfur Battery with Lithium Cloth Anode and Polysulfone-Functionalized Separator

Author

Yu, Baozhi, primary, Fan, Ye, additional, Mateti, Srikanth, additional, Kim, Donggun, additional, Zhao, Chen, additional, Lu, Shengguo, additional, Liu, Xin, additional, Rong, Qiangzhou, additional, Tao, Tao, additional, Tanwar, Khagesh Kumar, additional, Tan, Xin, additional, Smith, Sean C., additional, and Chen, Ying Ian, additional

Published
2020
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40. Efficient Ni2V2O7catalyst for high-performance Li–S batteries

Author

Zhou, Hengxue, Wang, Jialiang, Yan, Yeba, Fang, Yue, Long, Yi, Liang, Bo, Yao, Yingbang, Lu, Shengguo, and Tao, Tao

Abstract

Although Li–S batteries have a high theoretical capacity, their application are significantly hindered by the complex shuttle effect of polysulfides. To address the issues, in this paper, Ni2V2O7prepared by a simple method is proposed as an efficient catalyst for S cathodes. Ni2V2O7composed of Ni–O octahedra and V–O tetrahedra has a specific electronic structure. The Ni and V atoms interacted, enabling a fast kinetics of polysulfide redox. Moreover, Ni2V2O7contains metal sites (Ni and V) and oxygen vacancies, providing a high adsorption capacity and abundant active sites for polysulfide redox. Therefore, Li–S batteries consisting of Ni2V2O7-based cathodes exhibit an excellent cycling stability with a capacity of 1061 mAh g−1and capacity retention of 87.6% after 150 cycles at 0.2 C. Moreover, at 1 C rate, the batteries exhibit a capacity of 706 mAh g−1after 300 cycles with a minimal capacity decay of only 0.08% per cycle.

Published
2024
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50. Enhanced piezoelectric properties and electrocaloric effect in novel lead‐free (Bi0.5K0.5)TiO3‐La(Mg0.5Ti0.5)O3 ceramics.

Author

Li, Feng, Lu, Biao, Zhai, Jiwei, Shen, Bo, Zeng, Huarong, Lu, Shengguo, Viola, Giuseppe, and Yan, Haixue

Subjects
PIEZOELECTRIC ceramics, LEAD-free ceramics, PYROELECTRICITY, DIELECTRIC relaxation, CRYSTAL structure
Abstract

Abstract: The crystal structure, electromechanical properties, and electrocaloric effect (ECE) in novel lead‐free (Bi0.5K0.5)TiO3‐La(Mg0.5Ti0.5)O3 ceramics were investigated. A morphotropic phase boundary (MPB) between the tetragonal and pseudocubic phase was found at x = 0.01‐0.02. In addition, the relaxor properties were enhanced with increasing the La(Mg0.5Ti0.5)O3 content. In situ high‐temperature X‐ray diffraction patterns and Raman spectra were characterized to elucidate the phase transition behavior. The enhanced ECE (ΔT = 1.19 K) and piezoelectric coefficient (d33 = 103 pC/N) were obtained for x = 0.01 at room temperature. Meanwhile, the temperature stability of the ECE was considered to be related to the high depolarization temperature and relaxor characteristics of the Bi0.5K0.5TiO3‐based ceramics. The above results suggest that the piezoelectric and ECE properties can be simultaneously enhanced by establishing an MPB. These results also demonstrate the great potential of the studied systems for solid‐state cooling applications and piezoelectric‐based devices. [ABSTRACT FROM AUTHOR]

Published
2018
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