Electrohydrodynamic Atomization Deposition of Fuel Cell Catalyst-Coated Membrane with Structure and Material Gradient Variation

Electrohydrodynamic Atomization Deposition of Fuel Cell Catalyst-Coated Membrane with Structure and Material Gradient Variation

A catalyst-coated membrane (CCM) with structure and material gradient variation was deposited layer-by-layer (LbL) using electrohydrodynamic atomization (EHDA) deposition. This CCM contained 7 layers which is C cathode diffusion layer, Pt/C-C cathode transition layer, Pt/C cathode catalyst layer, Na...

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Veröffentlicht in:Key engineering materials 2015-05, Vol.645-646, p.1156-1162
Hauptverfasser: Ren, Tong Qun, Zhu, Xiao Hu, Liu, Chong, Zha, Wen, Li, Yang, Luo, Yi, Liang, Jun Sheng, Wang, Xiao Dong, Wang, Da Zhi
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Electrodes
Engineering
Fuel cells
Protons
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container_end_page 1162
container_issue
container_start_page 1156
container_title Key engineering materials
container_volume 645-646
creator Ren, Tong Qun
Zhu, Xiao Hu
Liu, Chong
Zha, Wen
Li, Yang
Luo, Yi
Liang, Jun Sheng
Wang, Xiao Dong
Wang, Da Zhi
description A catalyst-coated membrane (CCM) with structure and material gradient variation was deposited layer-by-layer (LbL) using electrohydrodynamic atomization (EHDA) deposition. This CCM contained 7 layers which is C cathode diffusion layer, Pt/C-C cathode transition layer, Pt/C cathode catalyst layer, Nafion membrane, Pt-Ru/C anode catalyst layer, Pt-Ru/C-C anode transition layer and C anode diffusion layer. The cathode and anode side were named as cathode and anode catalyst-diffusion layers, respectively. It was observed that the cathode and anode catalyst-diffusion layers presented the dendritic structure. Within the cathode and anode catalyst-diffusion layers, the Pt/C-C and Pt-Ru/C-C transition layer was more porous compared to the C layer, Pt/C layer and Pt-Ru/C layer. It was also shown that the EHDA LbL deposited CCM still presented close-packed structure after life test.
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subjects Electrodes
Engineering
Fuel cells
Protons
title Electrohydrodynamic Atomization Deposition of Fuel Cell Catalyst-Coated Membrane with Structure and Material Gradient Variation
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