首页|Multi-functional layered double hydroxides supported by nanoporous gold toward overall hydrazine splitting

Multi-functional layered double hydroxides supported by nanoporous gold toward overall hydrazine splitting

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Layered double hydroxides have demonstrated great potential for the oxygen evolution reaction,which is a crucial half-reaction of overall water splitting.However,it remains challenging to apply layered double hydroxides in other electrochemical reactions with high efficiency and stability.Herein,we report two-dimensional multifunc-tional layered double hydroxides derived from metal-organic framework sheet precursors supported by nano-porous gold with high porosity,which exhibit appealing performances toward oxygen/hydrogen evolution reac-tions,hydrazine oxidation reaction,and overall hydrazine splitting.The as-prepared catalyst only requires an overpotential of 233 mV to reach 10 mA-cm-2 toward oxygen evolution reaction.The overall hydrazine splitting cell only needs a cell voltage of 0.984 V to deliver 10 mA·cm-2,which is far more superior than that of the overall water splitting system(1.849 V).The appealing performances of the catalyst can be contributed to the synergistic effect between the metal components of the layered double hydroxides and the supporting effect of the nanoporous gold substrate,which could endow the sample with high surface area and excellent conductivity,resulting in superior activity and stability.

layered double hydroxideoxygen evolution reactionhydrazine oxidation reactionoverall hydrazine splittinghydrogen production

Yongji Qin、Huijie Cao、Qian Liu、Shaoqing Yang、Xincai Feng、Hao Wang、Meiling Lian、Dongxing Zhang、Hua Wang、Jun Luo、Xijun Liu

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ShenSi Lab,Shenzhen Institute for Advanced Study,University of Electronic Science and Technology of China,Shenzhen 518110,China

Institute for New Energy Materials and Low-Carbon Technologies,School of Materials Science and Engineering,Tianjin University of Technology,Tianjin 300384,China

State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures,Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials,School of Resources,Environment and Materials,Guangxi University,Nanning 530004,China

Institute for Advanced Study,Chengdu University,Chengdu 610106,China

China National Coal Group Corporation,Beijing 100120,China

Tianjin Engineering Research Center of Civil Aviation Energy Environment and Green Development,School of Transportation Science and Engineering,Civil Aviation University of China,Tianjin 300300,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaShenzhen Science and Technology ProgramShenzhen Science and Technology ProgramShenzhen Science and Technology ProgramShenzhen Science and Technology ProgramGuangdong Foundation for Basic and Applied Basic Research Program

5197115722075211JCYJ20210324115412035JCYJ20210324123202008JCYJ20210324122803009ZDSYS202108130955340012021A1515110880

2024

10.1007/s11705-023-2373-1

化学科学与工程前沿
高等教育出版社

化学科学与工程前沿

CSTPCDEI
影响因子：0.172
ISSN：2095-0179
年,卷(期)：2024.18(1)
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