DISTRIBUTIONS OF SIZE AND COMPOSITION IN CARBON-SUPPORTED PT-RU COMPOSITE METAL FINE-PARTICLE CATALYSTS

Authors
SAITO Y OGINO H FUKUSHIMA T
Citation
Y. Saito et al., DISTRIBUTIONS OF SIZE AND COMPOSITION IN CARBON-SUPPORTED PT-RU COMPOSITE METAL FINE-PARTICLE CATALYSTS, Kagaku kogaku ronbunshu, 21(6), 1995, pp. 984-989
Citations number
12
Categorie Soggetti
Engineering, Chemical
Journal title
Kagaku kogaku ronbunshu → ACNP
ISSN journal
0386216X
Volume
21
Issue
6
Year of publication
1995
Pages
984 - 989
Database
ISI
SICI code
0386-216X(1995)21:6<984:DOSACI>2.0.ZU;2-V
Abstract
Carbon-supported Pt-Ru composite catalysts that were dehydrogenation-a ctive for alcohol under boiling conditions were prepared from the mixe d chlorides RuCl3 and K2PtCl4, and from complexes with different charg es [Pt-3(CO)(6)](2-)(4) and [(C(6)Me(6))(2)Ru](2+). The former gave br oad particle-size distributions. A definite relationship between size and composition was elucidated by EDX analysis, namely that Ru-rich pa rticles were small but Pt rich particles were large. As far as 2-propa nol dehydrogenation was concerned, however, the most important factor for catalysis was the Pt/Ru ratio as a whole.