Construction of an electrocatalyst with oxygen-vacancy-rich nickel oxyhydroxide self-supported film for urea oxidation reaction

Q2 Engineering

Materials Research Innovations Pub Date : 2023-03-07 DOI:10.1080/14328917.2023.2186473

M. Yao, Weiling Chen

引用次数: 0

Abstract

ABSTRACT In this work, the oxygen-vacancy-rich nickel oxyhydroxide self-supported on iron foam was fabricated by rapid electrodeposition method followed by an Ar plasma treatment. The Ar plasma engineering offers nickel oxyhydroxide film porous structure with enhanced surface area and abundant oxygen vacancies. The oxygen-vacancy-rich nickel oxyhydroxide electrocatalyst showed small potentials of 1.42 V at 10 mA cm−2 and 1.59 V at 100 mA cm−2 for urea oxidation reaction in alkaline condition with a small Tafel slope of 76.1 mV dec−1 and good durability over 20 h. This work provides a rapid, facile and simple way to synthesise highly efficient and self-supported electrocatalyst for urea oxidation reaction.

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尿素氧化反应用富氧空位氢氧镍自支撑膜电催化剂的构建

摘要采用快速电沉积法和氩等离子体处理法制备了泡沫铁表面的富氧氢氧镍。氩等离子体工程提供了具有增强表面积和丰富氧空位的氧化镍膜多孔结构。在碱性条件下，富氧氧氧化镍电催化剂在10 mA cm−2和100 mA cm−2时的电位分别为1.42 V和1.59 V, Tafel斜率较小，为76.1 mV dec−1，且耐久时间超过20 h。本工作提供了一种快速、简便、简便的方法来合成高效、自支撑的尿素氧化反应电催化剂。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Research Innovations 工程技术-材料科学：综合

CiteScore

5.20

自引率

0.00%

发文量

审稿时长

2.8 months

期刊介绍： Materials Research Innovations covers all areas of materials research with a particular interest in synthesis, processing, and properties from the nanoscale to the microscale to the bulk. Coverage includes all classes of material – ceramics, metals, and polymers; semiconductors and other functional materials; organic and inorganic materials – alone or in combination as composites. Innovation in composition and processing to impart special properties to bulk materials and coatings, and for innovative applications in technology, represents a strong focus. The journal attempts to balance enduring themes of science and engineering with the innovation provided by such areas of research activity.