Highly durable graphene nanoplatelets supported Pt nanocatalysts for oxygen reduction

Journal Article · Tue Jun 01 04:00:00 EDT 2010 · Journal of Power Sources, 195(15):4600-4605

DOI:https://doi.org/10.1016/j.jpowsour.2009.10.036· OSTI ID:982951

Shao, Yuyan; Zhang, Sheng; Wang, Chong M; Nie, Zimin; Liu, Jun; Wang, Yong; Lin, Yuehe

We report graphene nanoplatelets (GNP), which exhibit the advantages of both single-layer graphene and highly graphitic carbon, as a durable alternative support material for Pt nanoparticles for oxygen reduction in fuel cells. Pt nanoparticles are deposited on poly(diallyldimethylammonium chloride)(PDDA)-coated GNP, and characterized with transmission electron microscopy, X-ray diffraction, Raman spectra, and electrochemical tests. Pt/GNP exhibits greatly enhanced electrochemical durability (2-3 times that of Pt/CNT and commercial Etek Pt/C). These are attributed to the intrinsic high graphitization degree of GNP and the enhanced Pt-carbon interaction in Pt/GNP. If considering that GNP can be easily mass produced from graphite, GNP is a promising, low-cost, and durable electrocatalyst support for oxygen reduction in fuel cells.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 982951
• Report Number(s): PNNL-SA-69731; 24990; EB4209000
• Journal Information: Journal of Power Sources, 195(15):4600-4605, Journal Name: Journal of Power Sources, 195(15):4600-4605 Journal Issue: 7 Vol. 195; ISSN 0378-7753
• Country of Publication: United States
• Language: English

Related Subjects

Environmental Molecular Sciences Laboratory
carbon nanotubes
durability
fuel cell
graphene nanoplatelets