Novel Superhydrophobic Gas Diffusion Media for PEM Fuel Cells: Evaluation of Performance and Durability
作者： G. Dotelli , S. Latorrata , P. Gallo Stampino , C. Cristiani
DOI: 10.3303/CET1441041
关键词:
摘要: Micro-porous layer (MPL) is a crucial component for an efficient water management in Polymer Electrolyte Membrane Fuel Cells (PEMFCs). Nowadays, MPLs are obtained by depositing dispersion, commonly known as ink, containing carbon black particles and PTFE onto cloth substrate. In this work was replaced innovative fluorinated polymer order to improve hydrophobic properties of consequently the whole system. Moreover, nanotubes (CNTs) partially substituted ink formulation. The new allowed decrease considerably treatment temperature (260 °C) with respect one necessary conventional samples based on (350 °C). cells assembled sample CNTs showed better performances than those traditional CNTs-free MPLs. Durability most performant assessed. Ad-hoc Accelerated Stress Tests (ASTs) were developed; they that main degradation MPL due mechanical stresses, caused reactants flow, which leads detachment materials consequent dramatic mass transfer resistance increase.
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Taehun Ha, Junhyun Cho, Jaeman Park, Kyoungdoug Min, Han-Sang Kim, Eunsook Lee, Jy-Young Jyoung, Experimental study of the effect of dissolution on the gas diffusion layer in polymer electrolyte membrane fuel cells International Journal of Hydrogen Energy. ,vol. 36, pp. 12427- 12435 ,(2011) , 10.1016/J.IJHYDENE.2011.06.096
Shengsheng Zhang, Xiaozi Yuan, Haijiang Wang, Walter Mérida, Hong Zhu, Jun Shen, Shaohong Wu, Jiujun Zhang, None, A review of accelerated stress tests of MEA durability in PEM fuel cells International Journal of Hydrogen Energy. ,vol. 34, pp. 388- 404 ,(2009) , 10.1016/J.IJHYDENE.2008.10.012
Ugur Pasaogullari, Chao-Yang Wang, Two-phase transport and the role of micro-porous layer in polymer electrolyte fuel cells Electrochimica Acta. ,vol. 49, pp. 4359- 4369 ,(2004) , 10.1016/J.ELECTACTA.2004.04.027
Jeong Hwan Chun, Dong Hyun Jo, Sang Gon Kim, Sun Hee Park, Chang Hoon Lee, Sung Hyun Kim, Improvement of the mechanical durability of micro porous layer in a proton exchange membrane fuel cell by elimination of surface cracks Renewable Energy. ,vol. 48, pp. 35- 41 ,(2012) , 10.1016/J.RENENE.2012.04.011
S. Latorrata, P. Gallo Stampino, E. Amici, R. Pelosato, C. Cristiani, G. Dotelli, Effect of rheology controller agent addition to Micro-Porous Layers on PEMFC performances Solid State Ionics. ,vol. 216, pp. 73- 77 ,(2012) , 10.1016/J.SSI.2012.03.030
P. Gallo Stampino, S. Latorrata, D. Molina, S. Turri, M. Levi, G. Dotelli, Investigation of hydrophobic treatments with perfluoropolyether derivatives of gas diffusion layers by electrochemical impedance spectroscopy in PEM-FC Solid State Ionics. ,vol. 216, pp. 100- 104 ,(2012) , 10.1016/J.SSI.2012.03.032
Saverio Latorrata, Paola Gallo Stampino, Cinzia Cristiani, Giovanni Dotelli, Novel superhydrophobic microporous layers for enhanced performance and efficient water management in PEM fuel cells International Journal of Hydrogen Energy. ,vol. 39, pp. 5350- 5357 ,(2014) , 10.1016/J.IJHYDENE.2013.12.199
Sehkyu Park, Jong-Won Lee, Branko N. Popov, A review of gas diffusion layer in PEM fuel cells: Materials and designs International Journal of Hydrogen Energy. ,vol. 37, pp. 5850- 5865 ,(2012) , 10.1016/J.IJHYDENE.2011.12.148
Adam Z. Weber, John Newman, Effects of Microporous Layers in Polymer Electrolyte Fuel Cells Journal of The Electrochemical Society. ,vol. 152, ,(2005) , 10.1149/1.1861194
Chan Lim, C.Y. Wang, Effects of hydrophobic polymer content in GDL on power performance of a PEM fuel cell Electrochimica Acta. ,vol. 49, pp. 4149- 4156 ,(2004) , 10.1016/J.ELECTACTA.2004.04.009