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Research Article

Bi nanoparticles/carbon nanosheet composite: A high-efficiency electrocatalyst for NO reduction to NH3

Qian Liu1, Yiting Lin2, Luchao Yue2, Jie Liang2, Longcheng Zhang2, Tingshuai Li2, Yongsong Luo2, Meiling Liu3( ), Jinmao You4, Abdulmohsen Ali Alshehri5, Qingquan Kong1, Xuping Sun2 ( )
Institute for Advanced Study, Chengdu University, Chengdu 610106, China
Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
College of Chemistry & Chemical Engineering, Shaoxing University, Shaoxing 312000, China
Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
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Abstract

Electrochemical reduction of NO offers us an attractive alternative to traditional selective catalytic reduction process for harmful NO removal and simultaneous NH3 production, but it requires efficient electrocatalyst to enable the NO reduction reaction with high selectivity. Here, we report on the development of Bi nanoparticles/carbon nanosheet composite (Bi@C) for highly effective NO reduction electrocatalysis toward selective NH3 formation. Such Bi@C catalyst attains an impressive NH3 yield of 1,592.5 μg·h−1·mgcat.−1 and a high Faradaic efficiency as high as 93% in 0.1 M Na2SO4 electrolyte. Additionally, it can be applied as efficient cathode materials for Zn–NO battery to reduce NO to NH3 with high electricity generation.

Graphical Abstract

Bismuth nanoparticles/carbon nanosheet composite behaves as a high-active and stable electrocatalystfor ambient NO reduction into NH3 with a yield of 1,592.5 μg·h−1·mgcat.−1 and a Faradaic efficiency ashigh as 93%.The Zn–NO battery with Bi@C cathode delivers a high power density of 2.35 mW·cm−1and an NH3 yield of 355.6 μg·h−1·mgcat.−1.

Keywords

Bi nanoparticlecarbon nanosheetNO reduction reactionNH3 synthesis electrocatalysis

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Nano Research
Volume 15 Issue 6,
June 2022
Pages 5032-5037
DOI: 10.1007/s12274-022-4283-9

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Cite this article:
Liu Q, Lin Y, Yue L, et al. Bi nanoparticles/carbon nanosheet composite: A high-efficiency electrocatalyst for NO reduction to NH3. Nano Research, 2022, 15(6): 5032-5037. https://doi.org/10.1007/s12274-022-4283-9
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Received: 05 January 2022
Revised: 28 February 2022
Accepted: 01 March 2022
Published: 28 March 2022
© Tsinghua University Press 2022