Cu-Doped Iron Oxide for the Efficient Electrocatalytic Nitrate Reduction Reaction

Wang, Jing1,2; Wang, Yian2; Cai, Chao3; Liu, Yushen2; Wu, Duojie3; Wang, Maoyu1,4,5; Li, Menghao1; Wei, Xianbin1; Shao, Minhua2,6,7; Gu, Meng1,3

2023-02-01

10.1021/acs.nanolett.2c04949

NANO LETTERS   影响因子和分区

1530-6984

1530-6992

The electrochemical nitrate reduction reaction (NO3RR) is a promising alternative synthetic route for sustainable ammonia (NH3) production, because it not only eliminates nitrate (NO3-) from water but also produces NH3 under mild operating conditions. However, owing to the complicated eight-electron reaction and the competition from the hydrogen evolution reaction, developing catalysts with high activities and Faradaic efficiencies (FEs) is highly imperative to improve the reaction performance. In this study, Cu-doped Fe3O4 flakes are fabricated and demonstrated to be excellent catalysts for electrochemical conversion of NO3- to NH3, with a maximum FE of similar to 100% and an NH3 yield of 179.55 +/- 16.37 mg h(-1) mg(cat)(-1) at -0.6 V vs RHE. Theoretical calculations reveal that doping the catalyst surface with Cu results in a more thermodynamically facile reaction. These results highlight the feasibility of promoting the NO3RR activity using heteroatom doping strategies.

nitrate reduction reaction iron oxide ammonia synthesis doping electrocatalysis

SCI ; EI

英语

NI论文

第一 ; 通讯

National Key Research and Development Project[2022YFA1503900] ; Shenzhen Funda-mental Research Funding["JCYJ20210324115809026","20200925154115001","JCYJ20200109141216566"] ; Shenzhen Science and Technology Program[KQTD20190929173815000] ; Guangdong Innovative and Entrepreneurial Research Team Program[2019ZT08C044] ; Research Grants Council["16304821","16310419","16309418"] ; Innovation and Technology Commission[ITC-CNERC14EG03]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000937207400001

AMER CHEMICAL SOC

20230913651261

Catalyst activity ; Copper oxides ; Electrocatalysis ; Magnetite ; Nitrates ; Reduction

Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
2.Hong Kong Univ Sci & Technol, Dept Chem & Biol Engn, Kowloon, Hong Kong 999077, Peoples R China
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
4.Oregon State Univ, Sch Chem Biol & Environm Engn, Corvallis, OR 97331 USA
5.Argonne Natl Lab, Xray Sci Div, Adv Photon Source, Argonne, IL 60439 USA
6.Hong Kong Univ Sci & Technol, Energy Inst, Kowloon, Hong Kong 999077, Peoples R China
7.Hong Kong Univ Sci & Technol, Chinese Natl Engn Res Ctr Control & Treatment Heav, Kowloon, Hong Kong 999077, Peoples R China

Wang, Jing,Wang, Yian,Cai, Chao,et al. Cu-Doped Iron Oxide for the Efficient Electrocatalytic Nitrate Reduction Reaction[J]. NANO LETTERS,2023,23:1897-1903.

Wang, Jing.,Wang, Yian.,Cai, Chao.,Liu, Yushen.,Wu, Duojie.,...&Gu, Meng.(2023).Cu-Doped Iron Oxide for the Efficient Electrocatalytic Nitrate Reduction Reaction.NANO LETTERS,23,1897-1903.

Wang, Jing,et al."Cu-Doped Iron Oxide for the Efficient Electrocatalytic Nitrate Reduction Reaction".NANO LETTERS 23(2023):1897-1903.