Preparation of catalyst coated membrane by modified decal transfer method for proton exchange membrane fuel cell

Innovation in Polymer Science and Technology 2016

材料科学;化学

Indriyati^1 ; Irmawati, Y.^2 ; Prihandoko, B.^2

Research Unit for Clean Technology, Indonesian Institute of Sciences (LIPI), Jl. Sangkuriang Kompleks LIPI Gedung 50, Bandung

40135, Indonesia^1

Research Center for Physics, Indonesian Institute of Sciences (LIPI), Kawasan PUSPIPTEK Serpong, Tangerang Selatan

15314, Indonesia^2

关键词: Catalyst coated membranes;    Catalyst layers;    Decal transfer method;    Hot pressing temperature;    Low temperature hot pressing;    PTFE films;    Transparent sheets;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/223/1/012037/pdf
DOI  :  10.1088/1757-899X/223/1/012037

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A new catalyst coated membrane (CCM) was prepared by modified decal transfer method. A structure of ionomer/catalyst/carbon/substrate was used to facilitate the transfer of catalyst layer from decal substrate to the membrane at quite low hot-pressing temperature (120 °C) for 8 min. Several decal substrates were tested to select a proper substrate, namely PTFE cloth, PTFE film, aluminium foil, and OHP transparent sheet. The transfer degree of catalyst layer was estimated. Elemental analysis and SEM-mapping were performed to evaluate the residue, whereas contact angle measurement was conducted to characterize the hydrophobicity of decal substrates. The results showed that PTFE cloth and PFTE film transferred approximately 90% of catalyst layer onto the membrane, while the other two substrates were around 70%. Furthermore, the elemental analysis of the residue on the substrate revealed that it was mainly composed of carbon and fluorine for PTFE cloth and PTFE film. This result supports other findings that PTFE cloth and PTFE film are suitable as decal substrate at low temperature hot pressing for fabricating CCM.