Pyridinic-N doping carbon layers coupled with tensile strain of FeNi alloy for activating water and urea oxidation

Guangfu Qian; Wei Chen; Jinli Chen; Li Yong Gan; Tianqi Yu; Miaojing Pan; Xiaoyan Zhuo; Shibin Yin

Green Energy & Environment (Apr 2024)

Pyridinic-N doping carbon layers coupled with tensile strain of FeNi alloy for activating water and urea oxidation

Guangfu Qian,
Wei Chen,
Jinli Chen,
Li Yong Gan,
Tianqi Yu,
Miaojing Pan,
Xiaoyan Zhuo,
Shibin Yin

Affiliations

Guangfu Qian: Guangxi Key Laboratory of Electrochemical Energy Materials, College of Chemistry and Chemical Engineering, State Key Laboratory of Processing for Non-Ferrous Metal and Featured Materials, Guangxi University, 100 Daxue Road, Nanning, 530004, China
Wei Chen: Guangxi Key Laboratory of Electrochemical Energy Materials, College of Chemistry and Chemical Engineering, State Key Laboratory of Processing for Non-Ferrous Metal and Featured Materials, Guangxi University, 100 Daxue Road, Nanning, 530004, China
Jinli Chen: Guangxi Key Laboratory of Electrochemical Energy Materials, College of Chemistry and Chemical Engineering, State Key Laboratory of Processing for Non-Ferrous Metal and Featured Materials, Guangxi University, 100 Daxue Road, Nanning, 530004, China
Li Yong Gan: Guangxi Key Laboratory of Electrochemical Energy Materials, College of Chemistry and Chemical Engineering, State Key Laboratory of Processing for Non-Ferrous Metal and Featured Materials, Guangxi University, 100 Daxue Road, Nanning, 530004, China; Institute for Structure and Function and Department of Physics, Chongqing University, Chongqing, 400030, China; Corresponding authors.
Tianqi Yu: Guangxi Key Laboratory of Electrochemical Energy Materials, College of Chemistry and Chemical Engineering, State Key Laboratory of Processing for Non-Ferrous Metal and Featured Materials, Guangxi University, 100 Daxue Road, Nanning, 530004, China
Miaojing Pan: Guangxi Key Laboratory of Electrochemical Energy Materials, College of Chemistry and Chemical Engineering, State Key Laboratory of Processing for Non-Ferrous Metal and Featured Materials, Guangxi University, 100 Daxue Road, Nanning, 530004, China
Xiaoyan Zhuo: Guangxi Key Laboratory of Electrochemical Energy Materials, College of Chemistry and Chemical Engineering, State Key Laboratory of Processing for Non-Ferrous Metal and Featured Materials, Guangxi University, 100 Daxue Road, Nanning, 530004, China
Shibin Yin: Guangxi Key Laboratory of Electrochemical Energy Materials, College of Chemistry and Chemical Engineering, State Key Laboratory of Processing for Non-Ferrous Metal and Featured Materials, Guangxi University, 100 Daxue Road, Nanning, 530004, China; Corresponding authors.

Journal volume & issue: Vol. 9, no. 4
pp. 684 – 694

Abstract

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Exploitation of oxygen evolution reaction (OER) and urea oxidation reaction (UOR) catalysts with high activity and stability at large current density is a major challenge for energy-saving H2 production in water electrolysis. Herein, we use the pyridinic-N doping carbon layers coupled with tensile strain of FeNi alloy activated by NiFe2O4 (FeNi/NiFe2O4@NC) for efficiently increasing the performance of water and urea oxidation. Due to the tensile strain effect on FeNi/NiFe2O4@NC, it provides a favorable modulation on the electronic properties of the active center, thus enabling amazing OER (η100 = 196 mV) and UOR (E10 = 1.32 V) intrinsic activity. Besides, the carbon-coated layers can be used as armor to prevent FeNi alloy from being corroded by the electrolyte for enhancing the OER/UOR stability at large current density, showing high industrial practicability. This work thus provides a simple way to prepare high-efficiency catalyst for activating water and urea oxidation.

Published in Green Energy & Environment

ISSN: 2468-0257 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Mechanical engineering and machinery: Renewable energy sources; Science: Biology (General): Ecology
Website: https://www.keaipublishing.com/en/journals/green-energy-and-environment/

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