Structural Alteration of Nanostructure Carbon Particles Carrying Pt Clusters in H2and O2Gases

Autor:	Yuki Kimura, Midori Saito, Ryuta Sakao, Chihiro Kaito, Ryoichi Ono, Shinsuke Ohyagi, Akihito Kumamoto
Rok vydání:	2007
Předmět:	Pt clusters Nanostructure Materials science Physics and Astronomy (miscellaneous) Amorphous carbon Transmission electron microscopy General Engineering Analytical chemistry General Physics and Astronomy Fuel cells Coagulation (water treatment) Catalysis Carbon particle
Zdroj:	Japanese Journal of Applied Physics. 46:L1141-L1142
ISSN:	0021-4922
DOI:	10.1143/jjap.46.l1141
Popis:	The effects of H2 and O2 gases on the typical fuel cell catalyst of Pt clusters on carbon particles (Pt on C) were examined using a special side-entry sample holder for high-resolution transmission electron microscopy. The holder can be used to transfer the specimen without exposure to air. The effects of H2 and O2 were detected after the specimen was exposed to the gases at 60 °C for 15 h. The predominant effect of H2 was the coagulation of the Pt clusters. The effect of O2 was to alter the structure of the carbon particles by oxidation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b0b9af972dde02af369134f5a234784c https://doi.org/10.1143/jjap.46.l1141 Zobrazit plný text záznamu