碳基底调控Co-N-C催化剂及其锌-空气电池性能

胡庆; 姚振华; 胡茂从

doi:10.11949/0438-1157.20260490

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碳基底调控Co-N-C催化剂及其锌-空气电池性能

催化、动力学与反应器 | 更新时间：2026-05-13

- 碳基底调控Co-N-C催化剂及其锌-空气电池性能
- Carbon support regulation of Co-N-C catalysts and zinc-air battery performance
- 化工学报 2026年
- 作者机构：
  
  江汉大学柔性光电材料与技术教育部重点实验室，武汉 430056
- 作者简介：
  
  胡庆（2001—），男，硕士研究生，huqing@stu.jhun.edu.cn
  姚振华（1982—），女，博士，副教授，zhenhua.yao@jhun.edu.cn
  胡茂从（1982—），博士，副教授，maocong.hu@jhun.edu.cn
- 基金信息：
  
  国家自然科学基金项目(52102256);湖北省自然科学基金项目(2023AFB1032);湖北本科高校省级教学改革研究项目(2025255);江汉大学研究生科研创新基金(KYCXJJ2025S14)
- DOI：10.11949/0438-1157.20260490
  中图分类号： TQ 426
- 收稿：2026-04-10，
  
  修回：2026-05-12，
  
  录用：2026-05-13，
- 稿件说明：
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胡庆, 姚振华, 胡茂从. 碳基底调控Co-N-C催化剂及其锌-空气电池性能[J/OL]. 化工学报, 2026.

HU Qing, YAO Zhenhua, HU Maocong. Carbon support regulation of Co-N-C catalysts and zinc-air battery performance[J/OL]. CIESC Journal, 2026.
胡庆, 姚振华, 胡茂从. 碳基底调控Co-N-C催化剂及其锌-空气电池性能[J/OL]. 化工学报, 2026. DOI： 10.11949/0438-1157.20260490.

HU Qing, YAO Zhenhua, HU Maocong. Carbon support regulation of Co-N-C catalysts and zinc-air battery performance[J/OL]. CIESC Journal, 2026. DOI： 10.11949/0438-1157.20260490.

摘要

以乙酸钴与1

10-菲罗啉为前驱体，分别选用鸟嘌呤、碳黑Vulcan XC-72及羧基化多壁碳纳米管为碳基底，通过可控热解制备了三种Co-N-C催化剂（CoNC-G、CoNC-CB及CoNC-CNT），系统探究了碳基底对催化剂结构及氧还原反应（ORR）性能的影响。结果表明，以碳黑Vulcan XC-72为基底的CoNC-CB性能最优：XPS图谱证实其Co-N键比例高达39.28%，N

吸附-脱附测试显示其总孔容达0.4627 cm

·g

-1

且介孔-大孔占比97.99%。电化学测试表明，CoNC-CB的半波电位为0.83 V（vs. RHE），塔菲尔斜率低至55.14 mV·dec

-1

，电子转移数接近4，且具备优异的稳定性及抗甲醇毒化性能。在锌-空气电池中，CoNC-CB基电池最大功率密度达163 mW·cm

-2

，比容量为795.94 mAh·g

-1

，循环寿命达877 h，性能显著优于商用Pt/C+IrO

。本研究阐明了碳基底在调控Co-N-C催化剂活性位点构筑与传质优化中的关键作用，为高性能非贵金属ORR催化剂的设计提供了重要参考。

Abstract

Three Co-N-C catalysts (CoNC-G

CoNC-CB

and CoNC-CNT) were prepared by controlled pyrolysis using cobalt acetate and 1

10-phenanthroline as precursors and guanine

carbon black Vulcan XC-72

and carboxylated multi-walled carbon nanotubes as carbon supports

respectively. The effects of carbon supports on the structure and oxygen reduction reaction (ORR) performance of the catalysts were systematically investigated. The results showed that CoNC-CB

with carbon black Vulcan XC-72 as the support

exhibited the best performance: XPS spectra confirmed that the proportion of Co-N bonds was as high as 39.28%

and N

adsorption-desorption tests indicated that the total pore volume was 0.4627 cm

·g

-1

with mesopores and macropores accounting for 97.99%. Electrochemical tests revealed that the half-wave potential of CoNC-CB was 0.83 V (vs. RHE)

the Tafel slope was as low as 55.14 mV·dec

-1

the electron transfer number was close to 4

and it had excellen

t stability and methanol tolerance. In zinc-air batteries

the maximum power density of the CoNC-CB-based battery was 163 mW·cm

-2

the specific capacity was 795.94 mAh·g

-1

and the cycle life was 877 h

significantly outperforming commercial Pt/C + IrO

. This study clarified the crucial role of carbon supports in regulating the construction of active sites and optimizing mass transfer in Co-N-C catalysts

providing an important reference for the design of high-performance non-precious metal ORR catalysts.

关键词

Keywords

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