Bismuth Ferrite as an Electrocatalyst for the Electrochemical Nitrate Reduction

Wang，Jing1,2; Wu，Duojie1; Li，Menghao1; Wei，Xianbin1; Yang，Xuming1; Shao，Minhua2,3; Gu，Meng1

2022-07-13

10.1021/acs.nanolett.2c02026

NANO LETTERS   Impact Factor & Quartile

1530-6984

1530-6992

Electrochemical nitrate reduction has become an appealing waste-to-wealth approach for sustainable NH3 synthesis owing to its mild operating conditions. However, developing catalysts with high activities and Faradaic efficiencies for this complicated eight-electron reaction is a great challenge. Herein, bismuth ferrite (BiFeO3) flakes, with a distorted perovskite-type structure, are demonstrated to be excellent catalysts for electrochemical NH3 synthesis via nitrate reduction, with a maximum Faradaic efficiency of 96.85%, NH3 yield of 90.45 mg h(-1) mg(cat)(-1), at -0.6 V vs. reversible hydrogen electrode. During the nitrate reduction reaction, the crystalline BiFeO3 rapidly converts into an amorphous phase, which is stable in the long term reaction. These results open a new window for rational design of more active and durable electrocatalysts.

nitrate reduction reaction bismuth ferrite ammonia synthesis amorphous phase electrocatalysis

SCI ; EI

English

NI Journal Papers

First

Shenzhen fundamental research funding["JCYJ 2 0 2 1 0 3 2 4 1 1 5 8 0 9 0 2 6","JCYJ20200109141216566","20200925154115001"] ; Shenzhen Science and Technology Program[KQTD20190929173815000] ; Guangdong Innovative and Entrepreneurial Research Team Program[2019ZT08C044] ; Innovation and Technology Commission of the Hong Kong Special Administrative Region[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:000829833500001

AMER CHEMICAL SOC

20223112469265

Ammonia ; Bismuth ; Bismuth compounds ; Catalyst activity ; Efficiency ; Electrocatalysis ; Ferrite ; Iron compounds ; Perovskite ; Reduction

Minerals:482.2 ; Metallography:531.2 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Production Engineering:913.1

MATERIALS SCIENCE

2-s2.0-85134426837

Web of Science

1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 999077, P.R. China
3.Energy Institute and Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 999077, P.R. China

Wang，Jing,Wu，Duojie,Li，Menghao,et al. Bismuth Ferrite as an Electrocatalyst for the Electrochemical Nitrate Reduction[J]. NANO LETTERS,2022,22(13):5600-5606.

Wang，Jing.,Wu，Duojie.,Li，Menghao.,Wei，Xianbin.,Yang，Xuming.,...&Gu，Meng.(2022).Bismuth Ferrite as an Electrocatalyst for the Electrochemical Nitrate Reduction.NANO LETTERS,22(13),5600-5606.

Wang，Jing,et al."Bismuth Ferrite as an Electrocatalyst for the Electrochemical Nitrate Reduction".NANO LETTERS 22.13(2022):5600-5606.