Research on the oxygen reduction performance of α-MoC/graphene and its application in microbial fuel cells

doi:10.16085/j.issn.1000-6613.2016.11.026

Chemical Industry and Engineering Progress ›› 2016, Vol. 35 ›› Issue (11): 3558-3562.DOI: 10.16085/j.issn.1000-6613.2016.11.026

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Research on the oxygen reduction performance of α-MoC/graphene and its application in microbial fuel cells

GUO Wenxian¹, CHEN Meiqiong¹, ZHANG Min², LIU Peng², ZHANG Yan¹, CAI Zhiquan¹, CHENG Faliang²

1. Dongguan Key Laboratory of Green Energy, Department of City and Environment Science, City College of Dongguan University of Technology, Dongguan 523419, Guangdong, China;
2. Biosensor Research Centre, Dongguan University of Technology, Dongguan 523808, Guangdong, China

Received:2016-01-25 Revised:2016-02-13 Online:2016-11-05 Published:2016-11-05

α-MoC/石墨烯复合材料的氧还原性能及其在微生物燃料电池中的应用

郭文显¹, 陈妹琼¹, 张敏², 柳鹏², 张燕¹, 蔡志泉¹, 程发良²

1. 东莞理工学院城市学院, 城市与环境科学系, 东莞市绿色能源重点实验室, 广东东莞 523419;
2. 东莞理工学院, 生物传感器研究中心, 广东东莞 523808

通讯作者: 程发良,博士,教授,研究方向为电分析化学。E-mail:chengfl@dgut.edu.cn。
作者简介:郭文显(1980-),男,硕士,讲师。
基金资助:
国家自然科学基金（21505019，21475022，21375016）及东莞市科技计划（2014106101020，2014106101022，2012108101016）项目。

Abstract

Abstract: The graphene and molybdenum carbide were prepared by the modified Hummers method and carbon thermal reduction method, respectively. The morphology of the materials were revealed using scanning electron microscope (SEM), and the structures were characterized with XRD. The electro catalytic activity of oxygen reduction of the materials were measured by cyclic voltammetry (CV) and linear sweep voltammetry (LSV). The results revealed that α-MoC/graphene composite exhibited better electro catalytic activity than pure graphene or α-MoC, with a higher oxygen reduction peak current and more positive onset potential. The microbial fuel cell assembled with 12mg/cm²α-MoC/graphene composite as cathode catalyst delivered a higher power density of 417.6mW/m², which was 68.2% of that obtained using Pt/C-catalyst cathode. Therefore, using the inexpensive α-MoC /graphene composites as MFCs cathode oxygen reduction catalyst holds great potential for application.

Key words: α-MoC/graphene, composites, catalyst, reduction, microbial fuel cell, cathode

摘要： 用改良Hummers法和碳热还原法分别制备了石墨烯和碳化钼。用扫描电子显微镜和XRD表征了材料的形貌和结构。用循环伏安和线性扫描测试了材料的氧还原催化性能，结果发现，复合材料的氧还原峰电流和起峰电位均大大优于单一材料，表现出较好的催化性能。含有12mg/cm²α-MoC碳化钼/石墨烯复合材料作为阴极催化剂的MFCs最大功率密度为417.6mW/m²，达到商业铂碳的68.2%。因此，廉价的α-MoC/石墨烯复合材料作为MFCs阴极氧还原催化剂具有巨大的应用潜力。

关键词: α-MoC/石墨烯, 复合材料, 催化剂, 还原, 微生物燃料电池, 阴极

CLC Number:

O646

GUO Wenxian, CHEN Meiqiong, ZHANG Min, LIU Peng, ZHANG Yan, CAI Zhiquan, CHENG Faliang. Research on the oxygen reduction performance of α-MoC/graphene and its application in microbial fuel cells[J]. Chemical Industry and Engineering Progress, 2016, 35(11): 3558-3562.

郭文显, 陈妹琼, 张敏, 柳鹏, 张燕, 蔡志泉, 程发良. α-MoC/石墨烯复合材料的氧还原性能及其在微生物燃料电池中的应用[J]. 化工进展, 2016, 35(11): 3558-3562.

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Research on the oxygen reduction performance of α-MoC/graphene and its application in microbial fuel cells

α-MoC/石墨烯复合材料的氧还原性能及其在微生物燃料电池中的应用

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