结构化学2024，Vol.43Issue(7) ：33-38.DOI:10.1016/j.cjsc.2024.100301

2D zirconium-based metal-organic framework/bismuth(Ⅲ)oxide nanorods composite for electrocatalytic CO2-to-formate reduction

Dong-Ling Kuang Song Chen Shaoru Chen Yong-Jie Liao Ning Li Lai-Hon Chung Jun He
结构化学2024，Vol.43Issue(7) ：33-38.DOI:10.1016/j.cjsc.2024.100301
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2D zirconium-based metal-organic framework/bismuth(Ⅲ)oxide nanorods composite for electrocatalytic CO2-to-formate reduction

Dong-Ling Kuang 1Song Chen 2Shaoru Chen 2Yong-Jie Liao 2Ning Li 2Lai-Hon Chung 1Jun He1
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作者信息

  • 1. Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center,Jieyang,515200,China;School of Chemical Engineering and Light Industry,Guangdong University of Technology,Guangzhou,510006,PR China
  • 2. School of Chemical Engineering and Light Industry,Guangdong University of Technology,Guangzhou,510006,PR China
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Abstract

Electrocatalytic carbon dioxide reduction reaction(eCO2RR)represents one of the most promising technologies for sustainable conversion of CO2 to value-added products.Although metal-organic frameworks(MOFs)can be vastly functionalized to create active sites for CO2RR,low intrinsic electrical conductivity always makes MOFs unfavorable candidates for eCO2RR.Besides,studies on how to regulate eCO2RR activity of MOFs from linkers'functionalities viewpoint lag far behind when compared with the assembly of multinuclear metal-centered clusters.In this work,non-toxic bismuth(Ⅲ)oxide(Bi2O3)was incorporated into a series of two-dimensional(2D)MOFs(ZrLX)established from Zr-oxo clusters and triazine-centered 3-c linkers with different functionalities(LX=1-5)to give composites ZrLX/Bi2O3.To investigate how functionalities on linkers distantly tune the eCO2RR performance of MOFs,electron-donating/withdrawing groups were installed at triazine core or benzoate terminals.It is found that ZrL2/Bi2O3(-F functionalized on triazine core)exhibits the best eCO2RR performance with the highest Faradaic efficiency(FE)of 96.73％at-1.07 V vs.RHE,the largest electroactive surface(Cdi=4.23 mF cm-2)and the highest electrical conductivity(5.54 x 10-7 S cm-1),highlighting tuning linker functionalities and hence electronic structure as an alternative way to regulate eCO2RR.

Key words

2D metal-organic framework/Bismuth(Ⅲ)oxide nanorods/Electrocatalytic carbon dioxide reduction/Microenvironment regulation

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基金项目

National Natural Science Foundation of China(22371054)

National Natural Science Foundation of China(22301045)

Foundation of Basic and Applied Basic Research of Guangdong Province(2020B1515120024)

Foundation of Basic and Applied Basic Research of Guangdong Province(2024A1515012801)

Science and Technology Planning Project of Guangdong Province(2021A0505030066)

Science and Technology Planning Project of Guangdong Province(2023A0505050164)

Science and Technology Program of Guangzhou(202201010244)

出版年

2024
结构化学
中国化学会 中国科学院福建物质结构研究所

结构化学

影响因子：0.44
ISSN：0254-5861
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