Fe-N共掺杂的碳纳米管串联空心球对氧还原反应的电催化

doi:10.13208/j.electrochem.180842

电化学（中英文） ›› 2018, Vol. 24 ›› Issue (6): 726-732. doi: 10.13208/j.electrochem.180842

• 庆祝衣宝廉院士八十华诞专辑 • 上一篇下一篇

Fe-N共掺杂的碳纳米管串联空心球对氧还原反应的电催化

张雅琳^1,2，陈驰¹，邹亮亮¹，邹志青^1*，杨辉^1*

1. 中国科学院上海高等研究院，上海 201210； 2. 中国科学院大学，北京 100049

收稿日期:2018-09-04 修回日期:2018-09-14 出版日期:2018-12-28 发布日期:2018-09-26
通讯作者: 邹志青，杨辉 E-mail: zouzq@sari.ac.cn; yangh@sari.ac.cn
基金资助:
黑龙江省自然科学基金（No. QC2013C008）资助

Fe-N Doped Hollow Carbon Nanospheres Linked by Carbon Nanotubes for Oxygen Reduction Reaction

ZHANG Ya-lin^1,2, CHEN Chi¹, ZOU Liang-liang¹, ZOU Zhi-qing^1*, YANG Hui^1*

1. Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China；2. University of Chinese Academy of Sciences, Beijing 100049, China)

Received:2018-09-04 Revised:2018-09-14 Published:2018-12-28 Online:2018-09-26
Contact: ZOU Zhi-qing, YANG Hui E-mail: zouzq@sari.ac.cn; yangh@sari.ac.cn

摘要/Abstract

摘要： 以ZIF-8为模板，通过表面包覆聚多巴胺、同时刻蚀ZIF-8中的Zn²⁺，形成空心球，在与三氯化铁络合后，经高温碳化和氨气热处理，得到了高比表面积的Fe-N共掺杂的碳纳米管串联的碳纳米空心球催化剂. 氨气不仅刻蚀碳基底提高比表面积，还可还原铁元素形成Fe₄N纳米粒子，提升了催化剂对氧还原反应的电催化活性，其氧还原半波电位达0.79 V，仅比商业Pt/C低60 mV，而且其稳定性和耐甲醇性更优于商业Pt/C，展示出良好的燃料电池应用潜力.

关键词: 非贵金属催化剂, 氧还原反应, 聚多巴胺, 氨气刻蚀, 碳纳米管/空心球复合物

Abstract: The development of non-precious metal catalysts for oxygen reduction reaction (ORR) is essential for large-scale application of proton exchange membrane fuel cells. Herein, we present the in situ formed Fe-N doped hollow carbon nanospheres linked by carbon nanotubes composite, synthesized by using ZIF-8 as sacrificed template to form polydopamine (PDA) hollow nanospheres, followed by complexing with FeCl₃, high temperature heat-treatment and NH₃-etching. ZIF-8 was gradually decomposed simultaneously with PDA coating due to the loss of Zn²⁺ grabbed by PDA. NH3 etching resulted in the improved surface area, while the reducibility of NH₃ resulted in the formation of Fe₄N nanoparticles, which benefits the ORR activity of the catalyst. The half-wave potential of the as-prepared of PDA-Fe/N/C-NH₃ was 0.79 V, only 60 mV lower than that of commercial Pt/C. The stability and methanol tolerance of PDA-Fe/N/C-NH₃ were even superior to that of commercial Pt/C, indicating the good potential of PDA-Fe/N/C-NH₃ for the application of fuel cells.

Key words: non-precious metal catalyst, oxygen reduction reaction, polydopamine, NH₃-etching, carbon nanotubes/hollow nanospheres composite

中图分类号:

O646

张雅琳，陈驰，邹亮亮，邹志青，杨辉. Fe-N共掺杂的碳纳米管串联空心球对氧还原反应的电催化[J]. 电化学（中英文）, 2018, 24(6): 726-732.

ZHANG Ya-lin, CHEN Chi, ZOU Liang-liang, ZOU Zhi-qing, YANG Hui. Fe-N Doped Hollow Carbon Nanospheres Linked by Carbon Nanotubes for Oxygen Reduction Reaction[J]. Journal of Electrochemistry, 2018, 24(6): 726-732.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.13208/j.electrochem.180842

https://electrochem.xmu.edu.cn/CN/Y2018/V24/I6/726

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Fe-N共掺杂的碳纳米管串联空心球对氧还原反应的电催化

Fe-N Doped Hollow Carbon Nanospheres Linked by Carbon Nanotubes for Oxygen Reduction Reaction

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