High-capacity polyaniline-coated molybdenum oxide composite as an effective catalyst for enhancing the electrochemical performance of the microbial fuel cell

被引:26
作者
Geetanjali [1 ]
Rani, Radha [1 ]
Kumar, Sanjay [2 ]
机构
[1] Motilal Nehru Natl Inst Technol Allahabad, Dept Biotechnol, Prayagraj 211004, India
[2] BHU Varanasi, Indian Inst Technol, Sch Biochem Engn, Varanasi 221005, Uttar Pradesh, India
关键词
Microbial fuel cell; Polyaniline; Molybdenum dioxide; Capacitance; Power density; AIR-CATHODE; POWER-GENERATION; ELECTRICITY-GENERATION; ANODE ELECTROCATALYST; CARBON CLOTH; GRAPHENE; NANOCOMPOSITE; ENHANCEMENT; NANOTUBES; BIOANODE;
D O I
10.1016/j.ijhydene.2019.04.201
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Microbial fuel cells (MFCs) are a promising technology, which can generate electrical energy by utilizing the organic compound as fuels through central metabolism system of exoelectrogenic bacteria. Anodes have been intensively explored for the development of highperformance MFCs as an alternative to conventional electrodes. Modified anodes were synthesized by the coating of molybdenum oxide (MoO2) and polyaniline (PANI) composites on the carbon cloth (CC) surface. MoO2/PANI electrocatalyst anodes have high capacitance and electrical conductivity, experimentally affirmed by cyclic voltammetry (CV)and charge-discharge analysis. The as-prepared modified anodes were found to efficiently enhance the performance of MFCs by facilitating the extracellular electron transfer from bacteria to the anode. MFCs with MoO2/PANI (1:2 w/w) electrocatalyst anode delivered a maximum power density (PD) of 1101 mW/m(2), which was 7.8 times higher than unmodified CC anode. EIS results indicate that the composite MoO2/PANI has also responsible for decreasing the interfacial charge transfer resistance which leads to the improvement in electron transfer between microbes and the modified anode. The results found in the present study will help in the design optimization of novel anode materials to deliver improved PD from MFCs. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:16933 / 16943
页数:11
相关论文
共 45 条
[1]  
Baudler A, 2015, ENERG ENVIRON SCI, V8, P2048, DOI [10.1039/C5EE00866B, 10.1039/c5ee00866b]
[2]   Enhanced performance of microbial fuel cells by using MnO2/Halloysite nanotubes to modify carbon cloth anodes [J].
Chen, Yingwen ;
Chen, Liuliu ;
Li, Peiwen ;
Xu, Yuan ;
Fan, Mengjie ;
Zhu, Shemin ;
Shen, Shubao .
ENERGY, 2016, 109 :620-628
[3]   Controlled modification of carbon nanotubes and polyaniline on macroporous graphite felt for high-performance microbial fuel cell anode [J].
Cui, Hui-Fang ;
Du, Lin ;
Guo, Peng-Bo ;
Zhu, Bao ;
Luong, John H. T. .
JOURNAL OF POWER SOURCES, 2015, 283 :46-53
[4]   Applications of graphene in microbial fuel cells: The gap between promise and reality [J].
ElMekawy, Ahmed ;
Hegab, Hanaa M. ;
Losic, Dusan ;
Saint, Christopher P. ;
Pant, Deepak .
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2017, 72 :1389-1403
[5]   Ceramic MFCs with internal cathode producing sufficient power for practical applications [J].
Gajda, Iwona ;
Stinchcombe, Andrew ;
Greenman, John ;
Melhuish, Chris ;
Ieropoulos, Ioannis .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2015, 40 (42) :14627-14631
[6]   Biosynthesized FeO nanoparticles coated carbon anode for improving the performance of microbial fuel cell [J].
Harshiny, M. ;
Samsudeen, N. ;
Kameswara, Rao Jana ;
Matheswaran, Manickam .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2017, 42 (42) :26488-26495
[7]   γ-MnO2/polyaniline composites: Preparation, characterization, and applications in microwave absorption [J].
Hu Jianjun ;
Duan Yuping ;
Zhang Jia ;
Jing Hui ;
Liu Shunhua ;
Li Weiping .
PHYSICA B-CONDENSED MATTER, 2011, 406 (10) :1950-1955
[8]   In-situ modified carbon cloth with polyaniline/graphene as anode to enhance performance of microbial fuel cell [J].
Huang, Lihua ;
Li, Xiufen ;
Ren, Yueping ;
Wang, Xinhua .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2016, 41 (26) :11369-11379
[9]   Dual-Function Electrocatalytic and Macroporous Hollow-Fiber Cathode for Converting Waste Streams to Valuable Resources Using Microbial Electrochemical Systems [J].
Katuri, Krishna P. ;
Kalathil, Shafeer ;
Ragab, Ala'a ;
Bian, Bin ;
Alqahtani, Manal F. ;
Pant, Deepak ;
Saikaly, Pascal E. .
ADVANCED MATERIALS, 2018, 30 (26)
[10]   Manganese cobaltite/polypyrrole nanocomposite-based air-cathode for sustainable power generation in the single-chambered microbial fuel cells [J].
Khilari, Santimoy ;
Pandit, Soumya ;
Das, Debabrata ;
Pradhan, Debabrata .
BIOSENSORS & BIOELECTRONICS, 2014, 54 :534-540