Fe/Zn共掺杂聚苯胺空气阴极催化剂的制备及表征

doi:10.3969/j.issn.1000-1565.2024.03.005

河北大学学报(自然科学版) ›› 2024, Vol. 44 ›› Issue (3): 261-268.DOI: 10.3969/j.issn.1000-1565.2024.03.005

Fe/Zn共掺杂聚苯胺空气阴极催化剂的制备及表征

柴元吉¹,王涵明¹,刘智民²,肖龙龙¹,沈哲曦¹,于泊蕖¹

收稿日期:2023-12-18 出版日期:2023-05-25 发布日期:2024-07-01
通讯作者: 于泊蕖(1972—)
作者简介:柴元吉(1999—),男,河北大学在读硕士研究生,主要从事微生物燃料电池电极材料研究.
E-mail: 1251248675@qq.com
基金资助:
南京大学污染控制与资源化研究国家重点实验室开放基金资助项目(PCRRF21006);白洋淀流域生态保护与京津冀可持续发展协同创新中心资助

Preparation and characterization of Fe and Zn co-doped polyaniline microbial fuel cell cathode catalysts

CHAI Yuanji¹, WANG Hanming¹, LIU Zhimin²,XIAO Longlong¹, SHEN Zhexi¹, YU Boqu¹

1. School of Eco-Environment, Hebei University, Baoding 071002, China; 2. Baoding Mengniu Beverage Co, Ltd., Baoding 072450, China

Received:2023-12-18 Online:2023-05-25 Published:2024-07-01

摘要/Abstract

摘要： 为解决微生物燃料电池(MFC)阴极催化剂耐久性差、氧还原反应(ORR)动力学缓慢和成本高的问题,制备一种Fe、Zn和N共掺杂的多孔碳作为空气阴极催化剂.电化学研究表明:合成的催化剂Fe/Zn-NC-0.9对氧还原反应具有较好的电催化活性,电荷转移电阻为5.6 Ω、交换电流密度为53.3 mV/dec、最大功率密度达到(1 253±20)mW/m².此外,还评价了Fe对氧还原反应性能和最大功率密度的影响:中等掺杂含量的Fe对提高催化活性起着至关重要的作用,而Fe和N共掺杂的协同效应促进了阴极性能.

关键词: Fe/Zn-NC, ORR, 空气阴极, 微生物燃料电池, 催化剂

Abstract: In order to address the issues of low durability, slow kinetics of the oxygen reduction reaction(ORR), and high cost of cathode catalysts for microbial fuel cells(MFC), a porous carbon co-doped with Fe, Zn, and N as an air cathode catalyst was prepared. The electrochemical studies demonstrated that the synthesised catalyst Fe/Zn-NC-0.9 exhibited excellent electrocatalytic activity for the oxygen reduction reaction. The charge transfer resistance and the exchange current density were measured at 5.6 Ω and 53.3 mV/dec, respectively, while the maximum power density was at(1 253±20)mW/m². Additionally, the impact of the Fe doping level on the ORR reaction and maximum power density was assessed. It was found that a moderate Fe doping level is essential for enhancing catalytic activity. Furthermore, the cathode performance is improved through the synergistic effect of Fe and N co-doping.

Key words: Fe/Zn-NC, ORR, air cathode, microbial fuel cell(MFC), catalyst

中图分类号:

X506

柴元吉,王涵明,刘智民,肖龙龙,沈哲曦,于泊蕖. Fe/Zn共掺杂聚苯胺空气阴极催化剂的制备及表征[J]. 河北大学学报(自然科学版), 2024, 44(3): 261-268.

CHAI Yuanji, WANG Hanming, LIU Zhimin,XIAO Longlong, SHEN Zhexi, YU Boqu. Preparation and characterization of Fe and Zn co-doped polyaniline microbial fuel cell cathode catalysts[J]. Journal of Hebei University(Natural Science Edition), 2024, 44(3): 261-268.

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Fe/Zn共掺杂聚苯胺空气阴极催化剂的制备及表征

Preparation and characterization of Fe and Zn co-doped polyaniline microbial fuel cell cathode catalysts

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