Microbial fuel cell anode modified by chemical oxidation - Details

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EI PKU CSCD

Abstract：

Oxidants　of　nitric　acid　and　acidic　potassium　dichromate　were　used　to　modify　anode　carbon　cloths.　Modification　was　completed　by　first　putting　the　carbon　cloth　into　nitric　acid　or　acidic　potassium　dichromate　at　a　given　temperature,　soaking　for　30　min　and　then　rinsing　with　de-ionized　water　until　no　variation　in　pH　and　finally　putting　into　a　vacuum　dryer,　drying　for　12　h.　Fourier　transform　infrared　spectroscopy　measurements　indicated　that　many　hydroxyls　and　carboxyls　were　attached　on　the　carbon　cloth　surface　after　modification.　SEM　results　showed　that　the　surface　of　carbon　cloth　became　rougher　than　the　unmodified　one.　In　addition,　cyclic　voltammetry　(CV)　and　electrochemical　impedance　spectroscopy　(EIS)　measurements　demonstrated　that　both　modified　anodes　had　excellent　electrochemical　properties.　Using　the　modified　carbon　cloths　as　microbial　fuel　cell　(MFC)　anodes　respectively,　such　MFCs　yielded　maximum　power　densities　of　291.11　mWm-2　and　438.08　mWm-2,　21%　and　82%　higher　than　that　of　the　MFC　with　unmodified　carbon　cloth　anode　respectively.　©,　2015,　Chemical　Industry　Press.　All　right　reserved.

Keyword：

Clothes Fourier transform infrared spectroscopy Potassium compounds Oxidation Anodes Chromates Carbon Fuel cells Infrared drying Microbial fuel cells Nitric acid Electrochemical impedance spectroscopy Cyclic voltammetry

Author Community：

[ 1 ] [Zhou, Yu]Key Laboratory of Enhanced Heat Transfer and Energy Conservation, School of Environmental and Energy Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Liu, Zhongliang]Key Laboratory of Enhanced Heat Transfer and Energy Conservation, School of Environmental and Energy Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Hou, Junxian]Key Laboratory of Enhanced Heat Transfer and Energy Conservation, School of Environmental and Energy Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Yang, Siqi]Key Laboratory of Enhanced Heat Transfer and Energy Conservation, School of Environmental and Energy Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Li, Yanxia]Key Laboratory of Enhanced Heat Transfer and Energy Conservation, School of Environmental and Energy Engineering, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Qiu, Wenge]Department of Chemistry and Chemical Engineering, School of Environmental and Energy Engineering, Beijing University of Technology, Beijing; 100124, China

Reprint Author's Address：

刘中良
[liu, zhongliang]key laboratory of enhanced heat transfer and energy conservation, school of environmental and energy engineering, beijing university of technology, beijing; 100124, china

Email：

zhouyu920831@emails.bjut.edu.cn

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