Decoupled Artificial Photosynthesis via a Catalysis-Redox Coupled COF||BiVO4 Photoelectrochemical Device

被引：46

作者：

Lin, Wan ^{[1
,2
,3
]}

Lin, Jing ^{[1
,2
,4
]}

Zhang, Xiang ^{[1
,2
,4
]}

Zhang, Linlin ^{[1
,2
,4
]}

Borse, Rahul Anil ^{[1
,2
,4
]}

Wang, Yaobing ^{[1
,2
,3
,4
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, CAS Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China

[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Prov Key Lab Nanomat, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[4] Fujian Sci & Technol Innovat Lab Optoelect Informa, Fuzhou 350108, Fujian, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2023年 / 145卷 / 32期

基金：

中国国家自然科学基金;

关键词：

HYDROGEN-PRODUCTION; CO2; REDUCTION; ELECTRON; DESIGN; OXIDE;

D O I：

10.1021/jacs.3c06687

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Artificial photosynthesis is an attractive approach todirect fuelproduction from sunlight. However, the simultaneous O-2 evolutionreaction (OER) and CO2 reduction reaction (CDRR) presentchallenges for product separation and safety. Herein, we propose astrategy to temporally decouple artificial photosynthesis throughphotoelectrochemical energy storage. We utilized a covalent organicframework (DTCo-COF) with redox-active electron donors (-C-OHmoieties) and catalytically active electron acceptors (cobalt-porphyrin)to enable reversible -C-OH/-C O redoxreaction and redox-promoted CO2-to-CO photoreduction. Integratingthe COF photocathode with an OER photoanode in a photoelectrochemicaldevice allows the effective storage of OER-generated electrons andprotons by -C O groups. These stored charges can belater employed for CDRR while regenerating -C O to completethe loop, thus enabling on-demand and separate production of O-2 or solar fuels. Our work sets the stage for advancementsin decoupled artificial photosynthesis and the development of moreefficient solar fuel production technologies.

引用

收藏

页码：18141 / 18147

页数：7

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