辽宁石油化工大学学报 ›› 2025, Vol. 45 ›› Issue (6): 28-34.DOI: 10.12422/j.issn.1672-6952.2025.06.004

• 材料科学与新能源(氢能技术研究) • 上一篇    下一篇

金属硼化物纳米串珠的制备及其析氧性能研究

朱炳臻1(), 吴琳1, 陶林1, 孙东旭2, 安百钢1, 张涵1()   

  1. 1.辽宁科技大学 化学工程学院,辽宁 鞍山 114051
    2.辽宁石油化工大学 石油天然气工程学院,辽宁 抚顺 113001
  • 收稿日期:2025-04-27 修回日期:2025-05-19 出版日期:2025-12-25 发布日期:2025-12-07
  • 通讯作者: 张涵
  • 作者简介:朱炳臻(2004⁃),女,硕士研究生,从事电催化方面的研究;E⁃mail:210376302@qq.com
  • 基金资助:
    国家自然科学基金青年科学基金项目(22109061);辽宁省重点攻关项目(JYTZD2023093);辽宁科技大学研究生创新创业项目(LKDYC202303);辽宁科技大学创新创业训练计划项目(S202510146066)

Metal Boride Nanobeads for Enhanced Oxygen Evolution Electrocatalysis

Bingzhen ZHU1(), Lin WU1, Lin TAO1, Dongxu SUN2, Baigang AN1, Han ZHANG1()   

  1. 1.School of Chemical Engineering,University of Science and Technology Liaoning,Anshan Liaoning 114051,China
    2.College of Petroleum Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
  • Received:2025-04-27 Revised:2025-05-19 Published:2025-12-25 Online:2025-12-07
  • Contact: Han ZHANG

摘要:

析氧反应(OER)作为水分解制氢技术的核心环节,其催化效率直接影响氢能的经济转化效率。采用磁场辅助一步还原法,成功制备了非晶态金属硼化物纳米串珠催化剂,对催化剂进行了物相及电化学测试分析,并将其用于促进OER催化反应。结果表明,在所制备的多种金属硼化物中,钴铁硼(CoFeB)定向纳米串珠表现出优异的催化性能和稳定性,在10 mA/cm2电流密度下的过电位仅为330 mV,Tafel斜率为82 mV/dec;催化剂优异的电催化性能主要源于Co和Fe的协同作用,优化了活性位点的电子结构,显著提升了OER电催化效率。此外,研究磁场强度和表面活性剂质量对CoFeB样品形貌与电化学性能的调控作用,揭示了催化活性与纳米粒子定向有序排列及结构特征之间的密切关系。该研究提出的策略简便且具有可扩展性,为设计和开发高效、低成本的金属硼化物催化剂提供了新的思路。

关键词: 磁场辅助, 金属硼化物, 纳米串珠, 电催化, 析氧反应

Abstract:

The oxygen evolution reaction (OER) serves as the core step in water?splitting for hydrogen production,and its catalytic efficiency directly affects the economic conversion efficiency of hydrogen energy. In this work, a magnetic field?assisted one?step reduction method was used to successfully prepare amorphous metal boride nanobead catalysts. The phase composition and electrochemical properties of the catalysts were characterized, and the catalysts were applied to promote the OER catalytic reaction. The results show that among the various prepared metal borides, the cobalt?iron boride (CoFeB) directional nanobeads exhibited superior catalytic performance and remarkable stability, requiring an overpotential of only 330 mV at a current density of 10 mA/cm2 with a Tafel slope of 82 mV/dec. The excellent electrocatalytic performance of the catalyst mainly stems from the synergistic effect of Co and Fe, which optimizes the electronic structure of active sites and significantly enhances catalytic efficiency. Furthermore, the effects of magnetic field strength and surfactant mass on the morphology and electrochemical behavior of CoFeB samples were systematically investigated, uncovering the strong correlation between catalytic activity, directional nanoparticle assembly, and structural features. The strategy proposed in this study is simple and scalable, providing a new approach for the design and development of high?efficiency and low?cost metal boride catalysts.

Key words: Magnetic field?assisted, Metal borides, Nanobeads, Electrocatalysis, Oxygen evolution reaction

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引用本文

朱炳臻, 吴琳, 陶林, 孙东旭, 安百钢, 张涵. 金属硼化物纳米串珠的制备及其析氧性能研究[J]. 辽宁石油化工大学学报, 2025, 45(6): 28-34.

Bingzhen ZHU, Lin WU, Lin TAO, Dongxu SUN, Baigang AN, Han ZHANG. Metal Boride Nanobeads for Enhanced Oxygen Evolution Electrocatalysis[J]. Journal of Liaoning Petrochemical University, 2025, 45(6): 28-34.

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链接本文: https://journal.lnpu.edu.cn/CN/10.12422/j.issn.1672-6952.2025.06.004

               https://journal.lnpu.edu.cn/CN/Y2025/V45/I6/28