Scholarlink

<p>Improving the efficiency of water electrolysis is essential for reducing electrical energy consumption and enabling cost-effective hydrogen production. Among the key challenges, the oxygen evolution reaction (OER) remains a major bottleneck due to its inherently sluggish kinetics. Although platinum group metal (PGM)-based electrocatalysts offer high OER activity, their high-cost limits large-scale commercialization. In this study, we developed a non-PGM-based heterostructured electrocatalyst composed of Co(OH)<sub>2</sub> and FeOOH (Co(OH)<sub>2</sub>–FeOOH/NF) on commercial nickel foam (NF), synthesized via a sacrificial template method using zeolitic imidazolate framework-67 (ZIF-67). The Co(OH)<sub>2</sub>–FeOOH/NF electrode demonstrated outstanding OER performance, primarily due to the synergistic interaction between Co(OH)<sub>2</sub> and FeOOH. When applied to an anion exchange membrane water electrolyzer (AEM electrolyzer), the system achieved a hydrogen production efficiency of 46.7&#xa0;kWh kg<sup>−1</sup><sub>H2</sub>, highlighting the strong potential of Co(OH)<sub>2</sub>–FeOOH/NF as a cost-effective and efficient alternative to conventional PGM-based OER electrode. </p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Development of Co(OH)2/FeOOH Heterostructured Electrode via Sacrificial Template Strategy for Anion Exchange Membrane Water Electrolyzer

  • 期刊论文

  • 发表日期：

    2025年7月7日

查看全文
  • In Tae Kim,
  • Seung Hun Lee,
  • Seo Hyun Park,
  • Sung Jun Lee,
  • Kyeong-Ho Kim,
  • Bong Kyun Kang,
  • Jooyoung Lee,
  • Sung Mook Choi,
  • Woo-Jae Lee,
  • Yangdo Kim,
  • Yoo Sei Park

摘要

Improving the efficiency of water electrolysis is essential for reducing electrical energy consumption and enabling cost-effective hydrogen production. Among the key challenges, the oxygen evolution reaction (OER) remains a major bottleneck due to its inherently sluggish kinetics. Although platinum group metal (PGM)-based electrocatalysts offer high OER activity, their high-cost limits large-scale commercialization. In this study, we developed a non-PGM-based heterostructured electrocatalyst composed of Co(OH)2 and FeOOH (Co(OH)2–FeOOH/NF) on commercial nickel foam (NF), synthesized via a sacrificial template method using zeolitic imidazolate framework-67 (ZIF-67). The Co(OH)2–FeOOH/NF electrode demonstrated outstanding OER performance, primarily due to the synergistic interaction between Co(OH)2 and FeOOH. When applied to an anion exchange membrane water electrolyzer (AEM electrolyzer), the system achieved a hydrogen production efficiency of 46.7 kWh kg−1H2, highlighting the strong potential of Co(OH)2–FeOOH/NF as a cost-effective and efficient alternative to conventional PGM-based OER electrode.