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Morphology-dependent Performance of Nanostructured MnO2 as an Oxygen Reduction Catalyst in Microbial Fuel Cells
Yuan, Haoran1,2; Deng, Lifang1,2; Qi, Yujie1,2; Kobayashi, Noriyuki3; Hasatani, Masanobu3
2015-05-01
发表期刊INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
卷号10期号:5页码:3693-3706
摘要Different nanostructures (nanoflowers, nanorods and nanotubes) of manganese dioxide (MnO2) were successfully synthesized using hydrothermal methods with different dwell times and were demonstrated to be efficient and stable cathode catalysts for the oxygen reduction reaction (ORR). Subsequent examination of these nanostructures using field-emission scanning electron microscopy and transmission electron microscopy revealed a strong correlation between the dwell time and the resulting morphology of the nanostructures and confirmed the successful synthesis of nanotubes. The electrocatalytic activities of the different nanostructures were investigated using cyclic voltammetry and linear sweep voltammetry, and the results indicated that all of the MnO2 nanostructures can catalyze the ORR with different catalytic activities. The nanotubes appeared to possess the highest catalytic activity, with a more positive peak potential and a larger ORR peak current. Additionally, a maximum power density of 11.6 W/m(3) was produced by the microbial fuel cell (MFC) with the nanotube cathode, which was higher than that of the other nanostructures and comparable to that of Pt/C (14.1 W/m(3)). The results of this study demonstrate that nanotubes are ideal crystal structures for MnO2 and that they offer a good alternative to Pt/C for practical MFC applications.
文章类型Article
关键词Hydrothermal Nanostructured Manganese Dioxide Electrochemical Oxygen-reduction Activity Cathode Catalyst Microbial Fuel Cell
WOS标题词Science & Technology ; Physical Sciences
研究领域[WOS]Electrochemistry
关键词[WOS]MANGANESE-DIOXIDE ; CATHODIC CATALYST ; ELECTRICITY-GENERATION ; NANOTUBES ; OXIDE ; SUPERCAPACITORS ; MECHANISM ; ELECTRODE
收录类别SCI
语种英语
WOS类目Electrochemistry
WOS记录号WOS:000354782200001
引用统计
被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10494
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
3.Nagoya Univ, EcoTopia Sci Inst, Nagoya, Aichi 4648603, Japan
第一作者单位中国科学院广州能源研究所
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Yuan, Haoran,Deng, Lifang,Qi, Yujie,et al. Morphology-dependent Performance of Nanostructured MnO2 as an Oxygen Reduction Catalyst in Microbial Fuel Cells[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2015,10(5):3693-3706.
APA Yuan, Haoran,Deng, Lifang,Qi, Yujie,Kobayashi, Noriyuki,&Hasatani, Masanobu.(2015).Morphology-dependent Performance of Nanostructured MnO2 as an Oxygen Reduction Catalyst in Microbial Fuel Cells.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,10(5),3693-3706.
MLA Yuan, Haoran,et al."Morphology-dependent Performance of Nanostructured MnO2 as an Oxygen Reduction Catalyst in Microbial Fuel Cells".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 10.5(2015):3693-3706.
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