Preparation of CoFe-PCz/NF electrocatalysts and their oxygen evolution reaction performances

CUI Lu; GUO Yanwen; ZHANG Yanran; ZHAO Yu; DING Chuanmin

doi:10.12434/j.issn.2097-2547.20250180

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Preparation of CoFe-PCz/NF electrocatalysts and their oxygen evolution reaction performances

更新时间：2026-05-22

- Preparation of CoFe-PCz/NF electrocatalysts and their oxygen evolution reaction performances
- Vol. 51, Issue 5, Pages: 118-126(2026)
- 作者机构：
  
  太原理工大学化学与化工学院，山西太原 030024
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20250180
  CLC： TQ151;O65
- Received：13 April 2025，
  
  Revised：2025-05-13，
  
  Published：25 May 2026
- 稿件说明：
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崔露,郭延文,张彦然等.CoFe-PCz/NF电催化剂制备及其析氧性能研究[J].低碳化学与化工,2026,51(5):118-126.

CUI Lu,GUO Yanwen,ZHANG Yanran,et al.Preparation of CoFe-PCz/NF electrocatalysts and their oxygen evolution reaction performances[J].Low-Carbon Chemistry and Chemical Engineering,2026,51(5):118-126.
崔露,郭延文,张彦然等.CoFe-PCz/NF电催化剂制备及其析氧性能研究[J].低碳化学与化工,2026,51(5):118-126. DOI： 10.12434/j.issn.2097-2547.20250180.

CUI Lu,GUO Yanwen,ZHANG Yanran,et al.Preparation of CoFe-PCz/NF electrocatalysts and their oxygen evolution reaction performances[J].Low-Carbon Chemistry and Chemical Engineering,2026,51(5):118-126. DOI： 10.12434/j.issn.2097-2547.20250180.

摘要

电解水制氢技术因其低碳环保、产氢纯度高等优势，被视为未来氢能发展的关键技术方向之一，因此开发高效稳定的催化剂至关重要。通过电化学沉积法将煤焦油衍生物咔唑（Cz）转化为聚咔唑（PCz）导电聚合物，并通过三维多孔泡沫镍（NF）基底构建了具有孔道结构的复合电极体系。在此基础上，引入钴铁双金属离子（Co

/Fe

），成功制备了Co

-PCz/NF复合电极材料。结果表明，在1 mol/L KOH电解液中，Co

-PCz/NF催化剂在10 mA/cm

电流密度下仅需175 mV的过电位即可驱动析氧反应（OER），同时在1.41 V电压下可稳定运行40 h，Co

和Fe

与PCz中的吡啶氮形成的配位键以及NF基底有效增大了电极与电解液的接触面积，提高了催化剂催化OER性能。这种通过廉价芳香杂环单体与过渡金属协同构建的复合催化体系，既实现了煤焦油资源的高附加值转化，又为开发高性能、低成本的工业电解水催化剂提供了新思路。

Abstract

Electrolysis of water for hydrogen production is regarded as one of the key technological directions for the future development of hydrogen energy due to its low-carbon environmental protection and high purity of hydrogen. Therefore

the development of efficient and stable catalysts is of great significance. By using electrochemical deposition

the coal tar derivative carbazole (Cz) was conve

rted into conductive polymers polycarbazol (PCz)

and a composite electrode system with a pore structure was constructed using three-dimensional porous nickel foam (NF) as the substrate. On this basis

cobalt-iron bimetallic ions (Co

/Fe

) were introduced to successfully prepare the Co

-PCz/NF composite electrode materials. The results show that in 1 mol/L KOH electrolyte

the Co

-PCz/NF catalyst can drive the oxygen evolution reaction (OER) at the overpotential of 175 mV under the current density of 10 mA/cm

. Additionally

it can operate stably for 40 h at the voltage of 1.41 V. The coordination bonds form between Co

/Fe

and the pyridine nitrogen in PCz

as well as the NF substrate effectively increase the contact area between the electrode and electrolyte

and enhance OER performance of the catalyst. This composite catalytic system

which is constructed through the the synergy of inexpensive aromatic heterocyclic monomers and transition metals

not only achieves high value-added conversion of coal tar resources but also provides new ideas for developing high-performance

low-cost industrial water electrolysis catalysts.

关键词

Keywords

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