Electricity generation from sediment microbial fuel cells with algae-assisted cathodes

被引：84
作者：
Wang, De-Bin [1 ]
Song, Tian-Shun [1 ]
Guo, Ting [1 ,2 ]
Zeng, Qinglu [3 ]
Xie, Jingjing [1 ]
机构：
[1] Nanjing Tech Univ, Coll Biotechnol & Pharmaceut Engn, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Jiangsu, Peoples R China
[2] Guangzhou Sugarcane Ind Res Inst, Guangzhou 510316, Guangdong, Peoples R China
[3] Hong Kong Univ Sci & Technol, Div Life Sci, Hong Kong, Hong Kong, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2014年 / 39卷 / 25期
基金：
高等学校博士学科点专项科研基金;
关键词：
Chlorella vulgaris; Algae-cathode; Sediment microbial fuel cell; Carbon nanotube; Electricity; FRESH-WATER SEDIMENT; CHLORELLA-VULGARIS; HARVESTING ENERGY; POWER-GENERATION; PERFORMANCE; BIOMASS; ANODE;
D O I：
10.1016/j.ijhydene.2014.06.141
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：
One major limiting factor for sediment microbial fuel cells (SMFC) is the low oxygen reduction rate in the cathode. The use of the photosynthetic process of the algae is an effective strategy to increase the oxygen availability to the cathode. In this study, SMFCs were constructed by introducing the algae (Chlorella vulgaris) to the cathode, in order to generate oxygen in situ. Cyclic voltammetry and dissolved oxygen analysis confirmed that C. vulgaris in the cathode can increase the dissolved oxygen concentration and the oxygen reduction rate. We showed that power generation of SMFC with algae-assisted cathode was 21 mW m(-2) and was further increased to 38 mW m(-2) with additional carbon nanotube coating in the cathode, which was 2.4 fold higher than that of the SMFC with bare cathode. This relatively simple method increases the oxygen reduction rate at a low cost and can be applied to improve the performance of SMFCs. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：13224 / 13230
页数：7
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