@inproceedings{c3ed07127e704e2cb932e5dadec9526b,
title = "A 3-D catalytic electrode structure for ultra-low platinum loading and high performance PEMFCs",
abstract = "The microstructure of the catalyst layer in proton exchange membrane fuel cells (PEMFCs) greatly influences catalyst (Pt) utilization and cell performance. We demonstrated a 3-D catalyst electrode structure based on a double-layered carbon nanotube/nanofiber film- (buckypaper) supported Pt composite catalyst to approach an idealized microstructure. The gradient distribution of Pt, electrolyte and porosity along the thickness effectively depresses the transport resistance of proton and gas. Rated power of 1.5 W/cm2 and 0.76 W/cm2 at 0.65 V was achieved at 80°C for oxygen and air with a low Pt loading of 0.2 mg cm 2 resulting in a relatively high Pt utilization. The accelerated stress test (AST) of catalyst support showed a good durability of buckypaper support because of the high graphitization degree of carbon nanofibers.",
author = "W. Zhu and R. Liang and Zheng, \{J. P.\}",
year = "2012",
doi = "10.1149/04523.0047ecst",
language = "English",
isbn = "9781623320423",
series = "ECS Transactions",
publisher = "Electrochemical Society Inc.",
number = "23",
pages = "47--55",
booktitle = "Fuel Cell Membranes, Electrode Binders, and MEA Performance",
address = "United States",
edition = "23",
note = "Symposium on Fuel Cell Membranes, Electrode Binders, and MEA Performance - 221st ECS Meeting ; Conference date: 06-05-2012 Through 10-05-2012",
}