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Boosting nitrate electroreduction to ammonia via in situ generated stacking faults in oxide-derived copper

文献类型：期刊论文

作者Fang, Ling2,3; Wang, Sha2,3; Song, Cheng2,3; Lu, Shun2,3; Yang, Xiaohui2,3; Qi, Xueqiang1; Liu, Hong2,3
刊名CHEMICAL ENGINEERING JOURNAL
出版日期2022-10-15
卷号446页码:10
ISSN号1385-8947
关键词Oxide-derived Cu Structural transition Stacking faults Electrocatalytic nitrate reduction
DOI10.1016/j.cej.2022.137341
通讯作者Liu, Hong(liuhong@cigit.ac.cn)
英文摘要Electrochemical reduction of nitrate is a promising approach to the production of value-added ammonia, which is meaningful in wastewater remediation and energy saving. However, the structural changes of metal oxide electrocatalysts have not fully understood under the electrocatalytic nitrate reduction reaction (NO3RR). Here, we find that the pristine Cu oxides can be transformed into Cu (oxide-derived Cu) with a high density of stacking faults during NO3RR process. The oxide-derived Cu directly grown on Cu foam produces great nitrate-N removal, ammonia-N selectivity, and ammonia Faradaic efficiency up to 93, 94, and 80%, respectively. Physical characterizations and theoretical investigations indicate that the oxide-derived Cu with in situ generated stacking faults causes tensile strain, which is favorable for nitrate adsorption and makes the metallic Cu more active. This work offers a new strategy of altering the electrocatalyst properties by in situ generating stacking faults from its oxides during nitrate reduction.
资助项目National Natural Science Foundation of China[52131003] ; National Natural Science Foundation of China[42007180] ; National Natural Science Foundation of China[52100065] ; Special Research Assistant Program of Chinese Academy of Science, Natural Science Foundation of Chongqing[cstc2020jcyj-msxmX0775]
WOS研究方向Engineering
语种英语
出版者ELSEVIER SCIENCE SA
WOS记录号WOS:000833421000006
源URL[http://119.78.100.138/handle/2HOD01W0/16429]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Liu, Hong
作者单位1.Chongqing Univ, Sch Chem & Chem Engn, Shazhengjie 174, Chongqing 400044, Peoples R China
2.Univ Chinese Acad Sci, Chongqing Sch, 266 Fangzheng Ave, Chongqing 400714, Peoples R China
3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, 266 Fangzheng Ave, Chongqing 400714, Peoples R China
推荐引用方式
GB/T 7714		 Fang, Ling,Wang, Sha,Song, Cheng,et al. Boosting nitrate electroreduction to ammonia via in situ generated stacking faults in oxide-derived copper[J]. CHEMICAL ENGINEERING JOURNAL,2022,446:10.
APA Fang, Ling.,Wang, Sha.,Song, Cheng.,Lu, Shun.,Yang, Xiaohui.,...&Liu, Hong.(2022).Boosting nitrate electroreduction to ammonia via in situ generated stacking faults in oxide-derived copper.CHEMICAL ENGINEERING JOURNAL,446,10.
MLA Fang, Ling,et al."Boosting nitrate electroreduction to ammonia via in situ generated stacking faults in oxide-derived copper".CHEMICAL ENGINEERING JOURNAL 446(2022):10.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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