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- W1575934148 abstract "The surface structures, chemisorption properties and catalytic behaviors of Ni-Cu/MoSiO and Ni-Cu/VSiO catalysts have been investigated by using the techniques of XRD, TPR, IR, TPD and micro-reactor. Three types of active sites, metallic site M (Ni-Cu alloy), Lewis acid site M n+ (Mo 6+ or V 5+ ) and Lewis base site M=O (Mo=O or V=O), have been found on the surface of the reduced catalysts. With the cooperation effects of these active sites, CO 2 can be chemisorbed on the metallic site M and Lewis acid site M n+ to form a new type of CO 2 horizontal adsorption state, M—(CO)—O→M n+ , and CH3OH can be dissociated on the Lewis base site M=O and Lewis acid site to form a dissociative adsorption state, M n+ OCH 3 and HO—M. The selectivity of dimethyl carbonate synthesized from these adsorption species is over 85% and a surface reaction mechanism of this catalytic reaction is proposed based on the experimental results." @default.
- W1575934148 created "2016-06-24" @default.
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- W1575934148 date "2000-01-01" @default.
- W1575934148 modified "2023-10-06" @default.
- W1575934148 title "Dimethyl carbonate synthesis from carbon dioxide and methanol over Ni-CufMoSiO(VSiO) catalysts" @default.
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- W1575934148 doi "https://doi.org/10.1016/s0167-2991(00)80423-1" @default.
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