English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26988/38789
Visitors : 2322113      Online Users : 64
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51840

Title: Enhancement of bioelectricity generation for an air-cathode microbial fuel cell using polyvinyl alcohol-membrane electrode assemblies
Authors: Shu-Hui Liu
Chih-Hung Wu
Chi-Wen Lin
Contributors: 國立臺灣海洋大學:地球科學研究所
Keywords: Polyvinyl alcohol membrane
Air-cathode microbial fuel cell (AC-MFC)
Ethyl acetate (EA)Electricity generation
Date: 2017-12
Issue Date: 2018-12-27T03:15:50Z
Publisher: Biochemical Engineering Journal
Abstract: Abstract: This study applied polyvinyl alcohol (PVA) film as the air-cathode membrane electrode assembly (MEA) of the microbial fuel cell (MFC) to estimate the electricity generation at various ethyl acetate (EA) concentrations. PVA-MEA can be produced by compressing carbon cloth with PVA hydrogel fabricated by freezing and thawing, and further drying the compressed product. The PVA-MEA thus prepared could serve as an air-cathode. The self-developed PVA-MEA exhibited excellent water absorption (water uptake: 149.4 ± 0.04%) and an excellent swelling ratio (12.15 ± 0.17%), capable of accelerating proton transmission through water molecules to the cathode to participate in the reduction reaction. When the concentration of EA increased from 26.2 mg/L to 1048 mg/L, the biofilm on the anode surface increased from 8 mg biomass/L to 274 mg biomass/L, attaining an average closed-circuit voltage (CCV) of 382–425 mV, an average open-circuit voltage of 468–682 mV, and a maximum power density of 59–143 mW/m2; moreover, the Coulombic efficiency (Ec) was elevated from 0.22% to 13.57%, by approximately 62 times. For the Monod kinetic parameters, the half-saturation constant was 3.74 mg/L, and the maximal CCV output was 425 mV. The PVA-MEA developed in the study could serve as an air-cathode MEA of an AC-MFC without having any modification material added to the cathode surface, achieving maximum voltage output with low concentrations of EA.
Relation: 128 pp.210-217
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51840
Appears in Collections:[應用地球科學研究所] 期刊論文

Files in This Item:

File Description SizeFormat
index.html0KbHTML21View/Open


All items in NTOUR are protected by copyright, with all rights reserved.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback