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Citation: Wu Shi-Hua, Zhu Chang-Ying, Huang Wei-Ping, Wu Wen-Yan. Studies on the Catalytic Properties for CO Hydrogenation of Supported Cu Catalysts Prepared by SMAI Method[J]. Acta Physico-Chimica Sinica, ;1998, 14(03): 249-253. doi: 10.3866/PKU.WHXB19980311 shu

Studies on the Catalytic Properties for CO Hydrogenation of Supported Cu Catalysts Prepared by SMAI Method

1.
Department of Chemistry,Nankai University,Tianjin 300071

Received Date: 30 June 1997
Available Online: 15 March 1998

SiO2 and Cr2O3 supported Cu catalysts were prepared by Solvated Metal Atom Impregnation (SMAI) method. XPS measurement showed that Cu on both supports almost totally exists in zero valent state- X-ray broadening measurement showed that the Cu particle sizes in-creased as the Cu content increased. The catalytic activity for CO hydrogenation of Cu catalysts were related to the supported Cu particle sizes and Cu valent states. Cr2O3 had promotion effect on Cu catalytic activity. The catalytic activity of Cu catalyst supported on Cr2O3 decreased as Cu partical size increased, while witll SiO2 as support, Cu particle size had no effect on the activity. Zero valent Cu0 was the active center for CO hydrogenation.
- Solvated metal atom,
- Cu catalyst,
- CO hydrogenation
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