Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 4, Issue 8, Pages 3805-3810Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am301187h
Keywords
graphene; carbon nanotube; Pt nanoparticles; chemical vapor deposition; fuel cells; power density
Funding
- INDO (DST)-UK
- Indian Institute of Technology, Madras
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Chemical and electrical synergies between graphite oxide and multiwalled carbon nanotube (MWNT) for processing graphene wrapped-MWNT hybrids has been realized by chemical vapor deposition without any chemical functionalization. Potential of the hybrid composites have been demonstrated by employing them as electrocatalyst supports in proton exchange membrane fuel cells. The defects present in the polyelectrolyte, which have been c wrapped over highly dispersed MWNT, act as anchoring sites for the homogeneous deposition of platinum nanoparticles. Single cell proton exchange membrane fuel cells show that the power density of the hybrid composite based fuel cells is higher compared to the pure catalyst-support-based fuel cells, because of enhanced electrochemical reactivity and good surface area of the nanocomposites.
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