NDLI: Synthesis of Pt nanopetals on highly ordered silicon nanocones for enhanced methanol electrooxidation activity.

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Synthesis of Pt nanopetals on highly ordered silicon nanocones for enhanced methanol electrooxidation activity.

Content Provider	Semantic Scholar
Author	Tiwari, Jitendra N. Tiwari, Rajanish N. Lin, Kun-Lin
Copyright Year	2010
Abstract	Platinum (Pt) nanopetals were electrodeposited on highly ordered silicon nanocones (SiNCs) and explored as the electrocatalyst for methanol oxidation reaction (MOR) for direct methanol fuel cells applications. Highly ordered SiNCs array fabricated using the porous anodic aluminum oxide as the template had a high surface area. Well-dispersed Pt nanopetals possessing high electrocatalytic surface area was synthesized by pulse-electrodeposition on the SiNCs. Pt nanopetals loaded on highly ordered SiNC support exhibited very good catalytic activity for MOR and a high tolerance against CO poisoning, as compared to Pt nanoflowers/flat Si, Pt nanoparticles/flat Si, and many previously reported works. The abundance of a large surface area for facile transport of methanol, SiO(2) sites in the vicinity of the SiNCs, as well as less contact area between the Pt nanopetals catalyst and SiNCs are suggested to be the major factors enhancing the electrocatalytic performance of the Pt nanopetal/SiNC electrode. Moreover, we believe this new nanostructure (Pt nanopetals/SiNCs) will enable many new advances in nanotechnology.
File Format	PDF HTM / HTML
DOI	10.1021/am100256g
PubMed reference number	20735093
Journal	Medline
Volume Number	2
Issue Number	8
Alternate Webpage(s)	https://ir.nctu.edu.tw/bitstream/11536/32387/1/000281109300012.pdf
Alternate Webpage(s)	https://doi.org/10.1021/am100256g
Journal	ACS applied materials & interfaces
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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