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Integration of Fe2O3-based photoanode and atomically dispersed cobalt cathode for efficient photoelectrochemical NH3 synthesis

文献类型：期刊论文

作者Wang, Weikang2,3; Zhang, Shengbo2,3; Liu, Yanyan2,3; Zheng, Li-Rong4; Wang, Guozhong2; Zhang, Yunxia2; Zhang, Haimin2; Zhao, Huijun1,2
刊名CHINESE CHEMICAL LETTERS
出版日期2021-02-01
卷号32
关键词PEC-NRR Co-SAC CoPi/Ti-Fe2O3 NH3 synthesis Photoelectrochemisty
ISSN号1001-8417
DOI10.1016/j.cclet.2020.04.013
通讯作者Zhang, Haimin(zhanghm@issp.ac.cn) ; Zhao, Huijun(h.zhao@griffith.edu.au)
英文摘要Realizing nitrogen reduction reaction (NRR) to synthesis NH3 under mild conditions has gained extensive attention as a promising alternative way to the energy- and emission-intensive Haber-Bosch process. Among varieties of potential strategies, photoelectrochemical (PEC) NRR exhibits many advantages including utilization of solar energy, water (H2O) as the hydrogen source and ambient operation conditions. Herein, we have designed a solar-driven PEC-NRR system integrating high-efficiency Fe2O3-based photoanode and atomically dispersed cobalt (Co) cathode for ambient NH3 synthesis. Using such solar-driven PEC-NRR system, high-efficiency Fe2O3-based photoanode is responsible for H2O/OH oxidation, and meanwhile the generated photoelectrons transfer to the single-atom Co cathode for the N-2 reduction to NH3. As a result, this system can afford an NH3 yield rate of 1021.5 mu g mg(Co)(-1) h(-1) and a faradic efficiency of 11.9% at an applied potential bias of 1.2 V (versus reversible hydrogen electrode) on photoanode in 0.2 mol/L NaOH electrolyte under simulated sunlight irradiation. (C) 2021 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
资助项目National Natural Science Foundation of China[51872292] ; National Natural Science Foundation of China[51672277] ; CAS/SAFEA International Partnership Program for Creative Research Teams of Chinese Academy of Sciences, China
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000635538300041
出版者ELSEVIER SCIENCE INC
资助机构National Natural Science Foundation of China ; CAS/SAFEA International Partnership Program for Creative Research Teams of Chinese Academy of Sciences, China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/121566]  
专题中国科学院合肥物质科学研究院
通讯作者Zhang, Haimin; Zhao, Huijun
作者单位1.Griffith Univ, Ctr Clean Environm & Energy, Gold Coast Campus, Gold Coast, Qld 4222, Australia
2.Chinese Acad Sci, Inst Solid State Phys, CAS Ctr Excellence Nanosci, Key Lab Mat Phys,Ctr Environm & Energy Nanomat,An, Hefei 230031, Peoples R China
3.Univ Sci & Technol China, Hefei 230026, Peoples R China
4.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Weikang,Zhang, Shengbo,Liu, Yanyan,et al. Integration of Fe2O3-based photoanode and atomically dispersed cobalt cathode for efficient photoelectrochemical NH3 synthesis[J]. CHINESE CHEMICAL LETTERS,2021,32.
APA Wang, Weikang.,Zhang, Shengbo.,Liu, Yanyan.,Zheng, Li-Rong.,Wang, Guozhong.,...&Zhao, Huijun.(2021).Integration of Fe2O3-based photoanode and atomically dispersed cobalt cathode for efficient photoelectrochemical NH3 synthesis.CHINESE CHEMICAL LETTERS,32.
MLA Wang, Weikang,et al."Integration of Fe2O3-based photoanode and atomically dispersed cobalt cathode for efficient photoelectrochemical NH3 synthesis".CHINESE CHEMICAL LETTERS 32(2021).

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来源：合肥物质科学研究院

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