MOF-derived Cu embedded into N-doped mesoporous carbon as a robust support of PdAu nanocatalysts for ethanol electrooxidation

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外文摘要：Metal-organic frameworks(MOFs)have attracted widespread attention due to their large surface area and porous structure.Rationally designing the nanostructures of MOFs to promote their application in ethanol electrooxidation is still a challenge.Here,a novel Cu-NCNs(Cu-nitrogen-doped carbon nanotubes)support was synthesized by pyrolysis of melamine(MEL)and Cu-ZIF-8 together,and then,Pd-Au nanoalloys were loaded by sodium borohydride reduction method to prepare PdAu@Cu-NCNs catalysts.The generating mesoporous carbon with high specific surface area and favorable elec-tron and mass transport can be used as a potential excellent carrier for PdAu nanoparticles.In addition,the balance of catalyst composition and surface structure was tuned by controlling the content of Pd and Au.Thus,the best-per-formed Pd2Au2@Cu-NCN-1000-2(where 1000 means the carrier calcination temperature,and 2 means the calcina-tion constant temperature time)catalyst exhibits better long-term stability and electrochemical activity for ethanol oxidation in alkaline media(4.80 A·mg-1),which is 5.05 times higher than that of commercial Pd/C(0.95 A·mg-1).Therefore,this work is beneficial to further promoting the application of MOFs in direct ethanol fuel cells(DEFCs)and can be used as inspiration for the design of more efficient catalyst support structures.

外文关键词：

Metal-organic frameworks(MOFs)N-dopedMesoporous carbonPdAuEthanol electrooxidation

作者：

Yu-Fu Huang、Peng Wu、Jun-Ping Tang、Jian Yang、Jing Li、Shuai Chen、Xue-Ling Zhao、Cheng Chen、Bin-Wei Zhang、Yan-Yun Ma、Wei-Heng Shi、Dong-Hai Lin、Shi-Gang Sun

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作者单位：

School of Energy and Materials,Shanghai Engineering Research Center of Advanced Thermal Functional Materials,Shanghai Key Laboratory of Engineering Materials Application and Evaluation,Shanghai Polytechnic University,Shanghai 201209,China

State Key Laboratory of Physical Chemistry of Solid Surfaces,Department of Chemistry,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,China

School of Chemistry and Chemical Engineering,Chongqing University,Chongqing 401331,China

Center of Advanced Energy Technology and Electrochemistry,Institute of Advanced Interdisciplinary Studies,Chongqing University,Chongqing 400044,China

Institute of Functional Nano & Soft Materials(FUNSOM),Jiangsu Key Laboratory for Carbon-Based Functional Materials& Devices,Soochow University,Suzhou 215123,China

Department of Materials Science and Engineering,Drexel University,Philadelphia,PA 19104,USA

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基金：

Program for Professor of Special Appointment(Eastern Scholar)at SIHLProject of Shanghai Municipal Science and Technology CommissionOpen Fund of Anhui International Joint Research Center for Nano Carbonbased Materials and Environmental HealthGaoyuan Discipline of Shanghai-Materials Science and EngineeringShanghai Polytechnic University-Drexel University Joint Research Center for Optoelectronics and SensingScience Fund for Distinguished Young Scholars of Fujian ProvinceOpen Project of Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices(Soochow University)Collaborative Innovation Center of Suzhou Nano Science & Technology111 ProjectJoint International Research Laboratory of Carbon-Based Functional Materials and Devices

项目编号：

22DZ2291100NCMEH2022Y022019J06027KS2022

出版年：

2024

DOI：

10.1007/s12598-023-02512-9

稀有金属(英文版)

中国有色金属学会

稀有金属(英文版)

CSTPCDEI

影响因子：0.801

ISSN：1001-0521

年,卷(期)：2024.43(3)

参考文献量57