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The selective electrocatalytic reduction of nitrate to ammonia using Co(ii)-decorated TiO2 nanosheets

文献类型：期刊论文

作者Xu, Yan-Tong3; Han, Ying3; Sam, Daniel Kobina1,3; Cao, Yan2,3
刊名JOURNAL OF MATERIALS CHEMISTRY A
出版日期2022-08-10
页码9
ISSN号2050-7488
DOI10.1039/d2ta04707a
通讯作者Cao, Yan(caoyan@ms.giec.ac.cn)
英文摘要The electrocatalytic nitrate-to-ammonia reduction reaction (NARR) is a promising route for zero-carbon ammonia synthesis as well as the recycling of nitrate waste, supporting the realization of agricultural nutrition supply and irrigation. TiO2 is a great potential NARR electrocatalyst candidate with ideal stability, yet it is hindered by limited selectivity for ammonia. In this regard, Co(ii) atoms with high faradaic efficiency toward NH3 (FENH3) are integrated into TiO2 nanosheets (NSs) (TiO2 NSs), affording a Co(ii)-decorated TiO2 NSs (Co/TiO2 NSs) catalyst. As an alternative to the value of 62.7% obtained using pristine TiO2 NSs, the as-prepared Co/TiO2 NSs catalyst exhibits a remarkable FENH3 increase up to 97.4% in 1.0 M neutral phosphate buffer solution (PBS) with 0.4 M NO3- at -0.72 V (vs. reversible hydrogen electrode, RHE), also outperforming other reported TiO2-based catalysts. And NH3 formation rates (rNH3) of 0.223 and 0.348 mmol cm-2 h-1 are also achieved at -0.72 and -1.12 V (vs. RHE), respectively. Furthermore, NARR also achieves a more favorable onset potential compared with the hydrogen evolution reaction (HER), reducing the energy input and displaying the promising future of NARR in coupling hydrogen production and storage.
WOS关键词HYDROGEN EVOLUTION REACTION ; ENERGY
资助项目Special Research Assistant Program of the Chinese Academy of Sciences[1190000058] ; China Postdoctoral Science Foundation[2021M690151] ; NSFC[22178339] ; Hundred Talents Program (A) of Chinese Academy of Sciences (2019) ; Guangdong Basic and Applied Basic Research Foundation[2021A1515110069] ; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development[2021000037] ; Basic Research Program of Guangzhou City[202102020866]
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science
语种英语
WOS记录号WOS:000842642500001
出版者ROYAL SOC CHEMISTRY
资助机构Special Research Assistant Program of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; NSFC ; Hundred Talents Program (A) of Chinese Academy of Sciences (2019) ; Guangdong Basic and Applied Basic Research Foundation ; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development ; Basic Research Program of Guangzhou City
源URL[http://ir.giec.ac.cn/handle/344007/37150]  
专题中国科学院广州能源研究所
通讯作者Cao, Yan
作者单位1.Univ Sci & Technol China, Hefei 230026, Peoples R China
2.Anhui Univ, Sch Chem & Chem Engn, Hefei 230601, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Yan-Tong,Han, Ying,Sam, Daniel Kobina,et al. The selective electrocatalytic reduction of nitrate to ammonia using Co(ii)-decorated TiO2 nanosheets[J]. JOURNAL OF MATERIALS CHEMISTRY A,2022:9.
APA Xu, Yan-Tong,Han, Ying,Sam, Daniel Kobina,&Cao, Yan.(2022).The selective electrocatalytic reduction of nitrate to ammonia using Co(ii)-decorated TiO2 nanosheets.JOURNAL OF MATERIALS CHEMISTRY A,9.
MLA Xu, Yan-Tong,et al."The selective electrocatalytic reduction of nitrate to ammonia using Co(ii)-decorated TiO2 nanosheets".JOURNAL OF MATERIALS CHEMISTRY A (2022):9.

入库方式： OAI收割

来源：广州能源研究所

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