Catalytic performance of Pt nanoparticles on reduced graphene oxide for methanol electro-oxidation

By Yongjie Li, Wei Gao, L. Ci, Chunming Wang, Pulickel M. Ajayan. 2010

911 citations recorded by the source corpus.

We have investigated a simple approach for the deposition of platinum (Pt) nanoparticles onto surfaces of graphite oxide (GO) nanosheets with particle size in the range of 1-5 nm by ethylene glycol reduction. During Pt deposition, a majority of oxygenated functional groups on GO was removed, which resulted in a Pt/chemically converted graphene (Pt/CCG) hybrid. The electrochemically active surface areas of Pt/CCG and a comparative sample of Pt/multi-walled carbon nanotubes (Pt/MWCNT) are 36.27 and 33.43 m(2)/g, respectively. The Pt/CCG hybrid shows better tolerance to CO for electro-oxidation of methanol compared to the Pt/MWCNT catalyst. Our study demonstrates that CCG can be an alternative two-dimensional support for Pt in direct methanol fuel cells. (C) 2009 Elsevier Ltd. All rights reserved.

Subfields: Electrical and Electronic Engineering, Materials Chemistry, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/2230f971cd7447bd8410712a71a5394773681cad

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Citations in the corpus

• Synthesis, properties, and applications of graphene oxide/reduced graphene oxide and their nanocomposites (2019, background): “…coating, stimuli-responsive materials, anticorrosion, and energy storage), the use of GO and rGO could also motivate the development and design of many other applications, including sensors [40,158,159], photoluminescence [23], electronics [57,160], energy [161,162], and catalysis [41,163,164].”
• Preparation and properties of highly conductive palmitic acid/ graphene oxide composites as thermal energy storage materials (2013, background): “4 shows that GO has peaks at around 14 and 43 that is observed in pervious works [14].”