气候变化领域集成服务门户(CCPortal): Atomically dispersed bimetallic Fe-Co electrocatalysts for green production of ammonia

CCPortal

DOI	10.1038/s41893-022-00993-7
	Atomically dispersed bimetallic Fe-Co electrocatalysts for green production of ammonia
	Zhang, Shengbo; Han, Miaomiao; Shi, Tongfei; Zhang, Haimin; Lin, Yue; Zheng, Xusheng; Zheng, Li Rong; Zhou, Hongjian; Chen, Chun; Zhang, Yunxia; Wang, Guozhong; Yin, Huajie; Zhao, Huijun
发表日期	2023
ISSN	2398-9629
起始页码	169
结束页码	179
卷号	6 期号:2 页码:11
英文摘要	The dominant Haber-Bosch process to produce ammonia, arguably the most important chemical in support of global food supply, is both energy and carbon intensive, resulting in substantial environmental impacts. Electrocatalytic nitrogen reduction reaction (NRR) powered by renewable electricity provides a green synthetic route for ammonia, but still suffers from insufficient yield rate and Faradaic efficiency. Single-atom electrocatalysts (SACs) have the potential to transform this catalytic process; however, controllable synthesis of SACs with high loading of active sites remains a big challenge. Here we utilize bacterial cellulose with rich oxygen functional groups to anchor iron (Fe) and cobalt (Co), realizing high density, atomically dispersed, bimetallic Fe-Co active sites. For electrocatalytic NRR, our catalyst design delivers a remarkable ammonia yield rate of 579.2 +/- 27.8 mu g h(-1) mg(cat.)(-1) and an exceptional Faradaic efficiency of 79.0 +/- 3.8%. The combined theoretical and experimental investigations reveal that the operando change in coordination configuration from [(O-C-2)(3)Fe-Co(O-C-2)(3)] to [(O-C-2)(3)Fe-Co(O-C)C-2] is the enabling chemistry. Our findings suggest a general approach to engineer SACs that can drive critical reactions of relevance for sustainability. Electrocatalytic reduction of nitrogen has emerged as a sustainable means for the production of ammonia. Here the authors design bimetallic Fe-Co single-atom catalysts dispersed on carbon that enable unprecedented ammonia yield rates.
学科领域	Green & Sustainable Science & Technology; Environmental Sciences; Environmental Studies
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
WOS记录号	WOS:000883302400002
来源期刊	NATURE SUSTAINABILITY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272872
作者单位	Chinese Academy of Sciences; Hefei Institutes of Physical Science, CAS; Chinese Academy of Sciences; University of Science & Technology of China, CAS; Huzhou University; Chinese Academy of Sciences; University of Science & Technology of China, CAS; Chinese Academy of Sciences; University of Science & Technology of China, CAS; Chinese Academy of Sciences; Institute of High Energy Physics, CAS; Griffith University
推荐引用方式 GB/T 7714	Zhang, Shengbo,Han, Miaomiao,Shi, Tongfei,et al. Atomically dispersed bimetallic Fe-Co electrocatalysts for green production of ammonia[J],2023,6(2):11.
APA	Zhang, Shengbo.,Han, Miaomiao.,Shi, Tongfei.,Zhang, Haimin.,Lin, Yue.,...&Zhao, Huijun.(2023).Atomically dispersed bimetallic Fe-Co electrocatalysts for green production of ammonia.NATURE SUSTAINABILITY,6(2),11.
MLA	Zhang, Shengbo,et al."Atomically dispersed bimetallic Fe-Co electrocatalysts for green production of ammonia".NATURE SUSTAINABILITY 6.2(2023):11.