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Citation: Qi Gongxin, Fei Jinhua, Hou Zhaoyin, Huang Chuanjing, Wang Dongjie, Zheng Xiaoming. Catalytical Hydrogenation of CO₂ over Copper-molybdenum Oxide Supported on HZSM-5[J]. Chinese Journal of Applied Chemistry, ;1999, 16(6): 62-64. shu

Catalytical Hydrogenation of CO₂ over Copper-molybdenum Oxide Supported on HZSM-5

1.
Institute of Catalysis, Zhejiang Universily(Xixi Campus), Hangzhou 310028

Received Date: 13 April 1999
Available Online: 2 August 1999
Fund Project: 浙江省自然科学基金(294067) (294067)浙江省教委基金(9512213) (9512213)浙江省高等学校重大科技攻关(96002)资助项目 (96002)

The hydrogenation of carbon dioxide over Cu-Mo/HZSM-5 composite catalysts prepared by an impregnation method has been studied.The reduction property and adsorption ability of the catalyst towards hydrogen and carbon dioxide have been investigated by TPR and TPD-MS techniques.The results indicated that the addition of Mo increased the activity and dimethyl ether selectivity of Cu/HZSM-5 catalyst, the most active and selective for dimethyl ether was the catalyst with n(Cu)/n(Mo)=5:1.The addition of Mo caused the TPR peaks of Cu/HZSM-5 to move to higher temperatures.CO₂-TPD results revealed the raise of the adsorbability of the catalyst toward CO₂.
- Cu-Mo/HZSM-5 supported catalyst,
- carbon dioxide hydrogenation,
- catalytical behavior
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Catalytical Hydrogenation of CO₂ over Copper-molybdenum Oxide Supported on HZSM-5