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2021中国汽车工程学会年会暨展览会

作者： Chen Yunzhi Mu Yangchang Liu Fude Peng Chenyang Xie Tianfeng Zheng Dawei Shi Zhicong Yang Yibin School of Materials and Energy Guangdong University of Technology

The application of perovskite oxides with ABO structure to oxygen reduction reaction(ORR) catalysts(ORRCs) has received increasing attention.Most of the studies have focused on changing the A or B metal ions in the structure.However,the best catalyst carrier of ABO remains unidentified.Therefore,in the present work,LaMnO-CNTs,LaMnO-graphene,LaMnO-graphene oxide,and LaMnO-acetylene black were synthesized from a LaMnO precursor and various catalyst carriers with different structures.The results revealed that LaMnO-CNTs,which are binary catalysts that act as LaMnO carriers and an electrochemically active ingredient,exert a considerable synergistic catalytic effect.A maximum power density of 265.8 mW cm was realized for the aluminum-air batteries using LaMnO-CNTs as ORRCs.

关键词： perovskite LaMnO3 CNTs Oxygen reduction reaction synergistic catalytic effect

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Anchoring Pt nanoparticles and Ti_(3)C_(2)T_(x)MXene nanosheets on CdS nanospheres as efficient synergistic photocatalysts for hydrogen evolution

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Science China(Technological Sciences) 2022年第12期65卷 3020-3028页

作者： JIANG JiZhou XIONG ZhiGuo WANG HaiTao XIANG Kun WU PingXiu ZOU Jing School of Environmental Ecology and Biological Engineering School of Chemistry and Environmental EngineeringKey Laboratory of Green Chemical Engineering Process of Ministry of EducationEngineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationNovel Catalytic Materials of Hubei Engineering Research CenterWuhan Institute of TechnologyWuhan 430205China Semiconductor Electronic Special Gas of Hubei Engineering Research Center Jingzhou 434000China

The development of a new-fashioned functional nanomaterial with an outstanding photocatalytic hydrogen evolution reaction(HER)activity under visible-light irradiation is a sustainable and promising strategy to cope with the increasingly serious global energy crisis.Herein,an advanced ternary photocatalytic HER catalyst,in which the Pt nanoparticles and Ti_(3)C_(2)T_(x)nanosheets are synchronously anchored on the surface of CdS nanospheres(Ti_(3)C_(2)T_(x)/Pt@CdS),is elaborately constructed via acid etching,sel-freduction,and solvothermal treatment.Therein,the synergistic promoting effect between Ti_(3)C_(2)T_(x)and Pt on the charge transfer of CdS effectively hinders the backtransfer of electrons to recombine with holes,resulting in a high-effective utilization of photoexcited charges.The obtained Ti_(3)C_(2)T_(x)/Pt@CdS possesses a superior photocatalytic HER activity compared to that of single active component catalyst.This work demonstrates the great potential of MXene materials in constructing high performance photocatalysts.

关键词： Pt nanoparticles Ti_(3)C_(2)T_(x)MXene CdS nanospheres synergistic catalytic effect photocatalytic HER

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Preparation of tungsten-iron composite oxides and application in environmental catalysis for volatile organic compounds degradation

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Tungsten 2022年第1期4卷 38-51页

作者： Jiang Liu Song-Lin Wang Ji-Li Xuan Bo-Fang Shan Hong Luo Li-Ping Deng Peng Yang Chen-Ze Qi Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process School of Chemistry and Chemical EngineeringShaoxing UniversityShaoxing 312000China School of Chemistry and Chemical Engineering Henan Institute of Science and TechnologyXinxiang 453003China Zhejiang Hengfeng New Material Co. LTDShaoxing 312000China State Key Laboratory of Chemical Engineering College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China

Emission of volatile organic compounds has important influence on complex air pollution and human health.In this paper,a series of tungsten-iron composite oxides with different proportions and preparation methods were synthesized and first used for catalytic combustion of chlorobenzene and toluene,as typical polluting gas sources.These WO_(3)-based solid catalytic materials were systematically characterized by modern analytical methods,and the results showed that there was strong electron interaction between W and Fe elements in the composite oxides,and the presence of a certain amount of tungsten oxide inhibited the crystallization of iron oxide,and vice versa,which were beneficial to the uniform dispersion of tungsten-iron components into each other and the improvement of redox properties.Compared with single-component oxide,the formation of tungsten-iron composite oxide affected the micro-structure,improved the specific surface area and optimized the pore structure of materials.The performance test results showed that the tungsten-iron composite oxide(FeWO_4-0.5 Fe_(2)O_(3),molar ratio of tungsten and iron was 1/2)prepared using citric acid-based sol-gel method was the optimal,and its catalytic degradation efficiency could reach 90%for chlorobenzene and 83%for toluene at 320℃,and maintain at least 60 h without obvious deactivation,with high selectivity to the formation of HCl and CO_(2).

关键词： Volatile organic compounds catalytic combustion WO_(3) FeWO_4 Composite oxide synergistic catalytic effect

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Fabrication of HRP/Bi_(2)WO_(6) photoenzyme-coupled artificial catalytic system for efficiently degrading bisphenol A

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Chinese Chemical Letters 2021年第6期32卷 2047-2051页

作者： Hongjun Dong Ning Song Ming Yan Huihui Wu Haibo Zhang Changchang Ma Yun Wang Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province Institute of Green Chemistry and Chemical TechnologySchool of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang 212013China Department of Chemistry Dongguk UniversitySeoul 04620Republic of Korea

A novel photoenzyme-coupled artificial catalytic system is fabricated by immobilizing horseradish peroxidase(HRP)on the Bi_(2)WO_(6)hollow nanospheres via a facile electrostatic self-assembly process.The obtained Bi_(2)WO_(6)/HRP sample not only improves the visible light harvest ability but also promotes the high-efficiency separation of charge carriers.More importantly,the photogenerated electrons and produced H2O2 on Bi_(2)WO_(6)directly take part in redox cycle reactions of HRP to induce photoenzyme synergic catalytic effect.In consequence,the degradation activity of Bi_(2)WO_(6)/HRP is significantly improved relative to Bi_(2)WO_(6)and HRP for removing bisphenol A(BPA)under the visible light irradiation.This work launches a feasible design strategy for exploiting photoenzyme-coupled artificial catalytic system with special structure to degrade organic pollutants in water efficiently.

关键词： Photoenzyme-coupled Bi_(2)WO_(6)/HRP synergistic catalytic effect BPA degradation Reaction mechanism

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