FeCoB三元非晶催化剂的制备及其分解水性能

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文章编号： 1672-6987（2022）03005508； DOI： 10.16351/j.1672-6987.2022.03.008

王宁， 李光九， 高洪涛*(青岛科技大学 化学与分子工程学院，山东 青岛 266042)

摘要： 采用化学还原法制备了FeCoB三元非晶态水分解催化剂，在1 mol·L-1 KOH电解液中表现出优异的电催化活性和稳定性。当电流密度为10 mA·cm-2时，析氢反应（HER）的过电位为307 mV，Tafel斜率为740 mV·dec-1；其析氧反应（OER）过电位为311 mV，Tafel斜率为825 mV·dec-1。实验结果表明三元过渡金属硼化物可用于全解水，对于潜在的高效电催化剂的研制具有重要意义。

关键词： FeCoB； 电催化剂； 全解水

中图分类号： TQ 151.1文献标志码： A

引用格式： 王宁，李光九，高洪涛. FeCoB三元非晶催化剂的制备及其分解水性能［J］. 青岛科技大学学报(自然科学版), 2022, 43(3): 5562.

WANG Ning， LI Guangjiu， GAO Hongtao. Preparation and performance of amorphous FeCoB catalyst for overall water splitting［J］. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2022， 43（3）： 5562.

Preparation and Performance of Amorphous FeCoB

Catalyst for Overall Water Splitting

WANG Ning， LI Guangjiu， GAO Hongtao

(College of Chemical and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)

Abstract: Amorphous ternaryFeCoB catalyst was prepared by chemical reduction method. It showed excellent electrocatalytic activity and stability in 1 mol·L-1 KOH solution. The FeCoB catalyst owned its catalytic activity with a low over potential of 307 mV to reach a current density of 10 mA·cm-2, with Tafel slope of 740 mV·dec-1 for HER. Meanwhile, it showed an overpotential of 311 mV and Tafel slope of 825 mV·dec-1 for OER. The experimental results showed that the ternary transition metal borides can be used for overall water splitting, which was of great significance for the development of potential high efficiency electrocatalysts.

Key words: ternary FeCoB boride; electrocatalysts; overall water splitting

收稿日期： 20210629

基金项目： 国家自然科学基金项目(41573103);山东省重点研发项目(2018GGX102004).

作者简介： 王宁（1995—），男，硕士研究生.*通信联系人.