A comparison of direct methanol fuel cell degradation under different modes of operation

被引：14
作者：
Wongyao, Nutthapon [1 ]
Therdthianwong, Apichai [2 ]
Therdthianwong, Supaporn [3 ]
Kumar, S. M. Senthil [4 ]
Scott, Keith [4 ]
机构：
[1] King Mongkuts Univ Technol Thonburi, Joint Grad Sch Energy & Environm, Bangkok 10140, Thailand
[2] King Mongkuts Univ Technol Thonburi, PDTI, Fuel Cells & Hydrogen Res & Engn Ctr, Bangkok 10140, Thailand
[3] King Mongkuts Univ Technol Thonburi, Fac Engn, Dept Chem Engn, Bangkok 10140, Thailand
[4] Newcastle Univ, Sch Chem Engn & Adv Mat, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2013年 / 38卷 / 22期
关键词：
Direct methanol fuel cell; Variable load on-off operation mode; Constant load continuous operation mode; Cell performance loss; Methanol crossover; Ru dissolution; PERFORMANCE DEGRADATION; DMFC; DEPENDENCE; CATALYSTS; MEMBRANE; PTRU/C; ANODE; BLACK;
D O I：
10.1016/j.ijhydene.2012.07.058
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：
The degradation test of direct methanol fuel cells (DMFCs) under on-off operation with variable load profile, known as a variable load on-off operation (VLOO) mode, was compared to continuous operation with a constant load, known as a constant load continuous operation (CLCO) mode. It was found that the performance loss in the VLOO mode was higher than that under the CLCO mode in terms of open circuit voltage drop (3.6 times higher) and the maximum power density reduction rate (1.23 times greater). Under both operation modes, the anode catalyst was deteriorated by Ru dissolution. However, the faster decay of cell performance under VLOO mode was mainly caused by the increase of cathode polarization due to higher methanol crossover and the decrease of Pt activity to the oxygen reduction reaction induced by Ru deposition. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：9464 / 9473
页数：10
相关论文
共 21 条
  • [1] Dynamic response of the direct methanol fuel cell under variable load conditions
    Argyropoulos, P
    Scott, K
    Taama, WM
    [J]. JOURNAL OF POWER SOURCES, 2000, 87 (1-2) : 153 - 161
  • [2] CRYSTALLITE GROWTH OF PLATINUM DISPERSED ON GRAPHITIZED CARBON-BLACK .2. EFFECT OF LIQUID ENVIRONMENT
    BETT, JAS
    KINOSHITA, K
    STONEHART, P
    [J]. JOURNAL OF CATALYSIS, 1976, 41 (01) : 124 - 133
  • [3] The stability of a PtRu/C electrocatalyst at anode potentials in a direct methanol fuel cell
    Chen, Weimin
    Sun, Gongquan
    Liang, Zhenxing
    Mao, Qing
    Li, Huanqiao
    Wang, Guoxiong
    Xin, Qin
    Chang, Hyuk
    Pak, Chanho
    Seung, Doyoung
    [J]. JOURNAL OF POWER SOURCES, 2006, 160 (02) : 933 - 939
  • [4] Test on the degradation of direct methanol fuel cell
    Chen, WM
    Sun, GQ
    Guo, JS
    Zhao, XS
    Yan, SY
    Tian, J
    Tang, SH
    Zhou, ZH
    Xin, Q
    [J]. ELECTROCHIMICA ACTA, 2006, 51 (12) : 2391 - 2399
  • [5] Characterization of catalysts and membrane in DMFC lifetime testing
    Cheng, X
    Peng, C
    You, MD
    Liu, L
    Zhang, Y
    Fan, QB
    [J]. ELECTROCHIMICA ACTA, 2006, 51 (22) : 4620 - 4625
  • [6] Performance and methanol permeation of direct methanol fuel cells:: dependence on operating conditions and on electrode structure
    Gogel, V
    Frey, T
    Zhu, YS
    Friedrich, KA
    Jörissen, L
    Garche, J
    [J]. JOURNAL OF POWER SOURCES, 2004, 127 (1-2) : 172 - 180
  • [7] The durability of polyol-synthesized PtRu/C for direct methanol fuel cells
    Guo, Junsong
    Sun, Gongquan
    Wu, Zhimou
    Sun, Shiguo
    Yan, Shiyou
    Cao, Lei
    Yan, Yushan
    Su, Dangsheng
    Xin, Qin
    [J]. JOURNAL OF POWER SOURCES, 2007, 172 (02) : 666 - 675
  • [8] Electrocatalysis of methanol oxidation
    Iwasita, T
    [J]. ELECTROCHIMICA ACTA, 2002, 47 (22-23) : 3663 - 3674
  • [9] Current density dependence on performance degradation of direct methanol fuel cells
    Jeon, Min Ku
    Lee, Ki Rak
    Oh, Kwang Seok
    Hong, Dae Sik
    Won, Jung Yeon
    Li, Shuang
    Woo, Seong Ihl
    [J]. JOURNAL OF POWER SOURCES, 2006, 158 (02) : 1344 - 1347
  • [10] Overview on the challenges and developments of micro-direct methanol fuel cells (DMFC)
    Kamarudin, S. K.
    Daud, W. R. W.
    Ho, S. L.
    Hasran, U. A.
    [J]. JOURNAL OF POWER SOURCES, 2007, 163 (02) : 743 - 754
123