Formation of amorphous Pt oxides: Characterization and their catalysis

Satoshi Kameoka, Masahiko Shimoda, Yoshitaka Matsushita, Yoshiyuki Yamashita, Yoshio Katsuya, Masahiko Tanaka, An Pang Tsai

研究成果: ジャーナルへの寄稿学術論文査読

3 被引用数 (Scopus)

抄録

Amorphous Pt oxides (am-PtOx) were formed by the leaching of copper from a Cu3Pt alloy in concentrated HNO3 at 323K for 12 h. The resulting am-PtOx was characterized using synchrotron X-ray powder diffraction, hard X-ray photoelectron spectroscopy, thermal analysis (TGDTA, TPD) and the BET method. This material had a high specific surface area with micropores (61.7m2/g) and decomposed to form Pt and O2 at approximately 720 K. The catalytic performance of the am-PtOx during CO oxidation was superior to that of a conventional Pt black catalyst. This study demonstrated a novel method of preparing am-PtOx with applications as a catalyst.

本文言語英語
ページ(範囲)490-494
ページ数5
ジャーナルMaterials Transactions
56
4
DOI
出版ステータス出版済み - 2015

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