Mehmood, Asad An, Myunggi Ha, Heung Yong 2024-01-20T02:33:41Z 2024-01-20T02:33:41Z 2021-09-05 2016-12-14 0360-3199 https://pubs.kist.re.kr/handle/201004/123318 In this study, we demonstrate how the formulation of colloidal catalyst ink and fabrication conditions affect the cathode microstructure of catalyst coated membranes (CCMs) prepared via decal technique. The CCMs based on conventional and high concentration cathode inks are compared in a direct methanol fuel cell (DMFC). It is found that the cathode catalyst layer made with a high concentration ink possesses superior porosity, leading to an improved DMFC performance. The temperature of roll-press used for preparing CCM is varied ranging from 170 to 210 degrees C in order to determine the optimal fabrication conditions for high concentration ink-based cathode. The CCM hot-pressed at 200 degrees C (advanced CCM) retains a significantly higher pore volume and outperforms' the conventional CCM by delivering an excellent DMFC performance with a maximum power density of 155 mW cm(-2), which is 20% higher than that of the conventional CCM. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD ELECTRODE ASSEMBLIES DURABILITY TEST RESTORATION OPERATION MEAS Tailoring cathode structure of catalyst coated membranes for performance enhancement in direct methanol fuel cells Article 10.1016/j.ijhydene.2016.08.025 1 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.41, no.46, pp.21366 - 21374 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 41 46 21366 21374 scie scopus 000389089600029 2-s2.0-84994151981 Chemistry, Physical Electrochemistry Energy & Fuels Chemistry Electrochemistry Energy & Fuels Article ELECTRODE ASSEMBLIES DURABILITY TEST RESTORATION OPERATION MEAS Direct methanol fuel cell Catalyst coated membrane Colloidal catalyst ink Catalyst layer Cathode porosity