| Catalytic Oxidation of Dimethyl Ether to Dimethoxymethane over Cs Modified H_3PW_(12)O_(40)/SiO_2 Catalysts |
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| 作者姓名： | Jun Shamoto Noritatsu Tsubaki |
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| 作者单位： | Department of Applied Chemistry University of Toyama，Toyama 930-8555，Japan，Department of Applied Chemistry，University of Toyama，Toyama 930-8555，Japan |
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| 基金项目： | Foundation items:the National Natural Science Foundation of China(No.20373085)，the Natural Science Foundation of Shanxi Province(No.20051023) |
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| 摘 要： | The attractive utilization route for one-step catalytic oxidation of dimethyl ether to dimethoxymethane was successfully carried out over the H_3PW_(12)O_(40)(40%)/SiO_2 catalyst,modified by Cs,K,Ni,and V.The Cs modification of H_3PW_(12)O_(40)(40%)/SiO_2 gave the most promising result of 20% dimethyl ether conversion and 34.8% dimethoxymethane selectivity.Dimethoxymethane could be synthe- sized via methoxy groups decomposed from dimethyl ether through the synergistic effect between the acid sites and the redox sites of Cs modified H_3PW_(12)O_(40)(40%)/SiO_2.
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Catalytic Oxidation of Dimethyl Ether to Dimethoxymethane over Cs Modified H3PW12O40/SiO2 Catalysts |
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| Jun Shamoto,Noritatsu Tsubaki.Catalytic Oxidation of Dimethyl Ether to Dimethoxymethane over Cs Modified H_3PW_(12)O_(40)/SiO_2 Catalysts[J].Journal of Natural Gas Chemistry,2007,16(3). |
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| Authors: | Qingde Zhang Yisheng Tan Caihong Yang Yizhuo Han Jun Shamoto Noritatsu Tsubaki |
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| Abstract: | The attractive utilization route for one-step catalytic oxidation of dimethyl ether to dimethoxymethane was successfully carried out over the H_3PW_(12)O_(40)(40%)/SiO_2 catalyst,modified by Cs,K,Ni,and V.The Cs modification of H_3PW_(12)O_(40)(40%)/SiO_2 gave the most promising result of 20% dimethyl ether conversion and 34.8% dimethoxymethane selectivity.Dimethoxymethane could be synthe- sized via methoxy groups decomposed from dimethyl ether through the synergistic effect between the acid sites and the redox sites of Cs modified H_3PW_(12)O_(40)(40%)/SiO_2. |
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| Keywords: | dimethyl ether dimethoxymethane catalytic oxidation Cs modified H_3PW_(12)O_(40)/SiO_2 XRD |
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