Characterization of Cu-ZnO-ZrO2 Catalysts for Stream Reforming of Methanol by in situ Raman Spectroscopy

Acta Chimica Sinica ›› 2004, Vol. 62 ›› Issue (18): 1729-1732. Previous Articles Next Articles

Cu-ZnO-ZrO₂甲醇水蒸气重整催化剂的原位Raman表征

云虹, 张慧, 陈建华, 陈鸿博

厦门大学化学系, 物理化学国家重点实验室, 厦门, 361005

投稿日期:2004-04-01 修回日期:2004-07-25 发布日期:2014-02-17
通讯作者: 陈鸿博,E-mail:hbchen@jingxian.xmu.edu.cn;Tel:013600934120 E-mail:hbchen@jingxian.xmu.edu.cn
基金资助:
福建省科学基金重大项目(No.2003H008)和厦门市科技计划项目(No.3502Z20021087)资助.

Characterization of Cu-ZnO-ZrO₂ Catalysts for Stream Reforming of Methanol by in situ Raman Spectroscopy

YUN Hong, ZHANG Hui, CHEN Jian-Hua, CHEN Hong-Bo

State Key Laboratory for Physical Chemistry of the Solid Surface, Department of Chemistry, Xiamen University, Xiamen 361005

Received:2004-04-01 Revised:2004-07-25 Published:2014-02-17

Abstract

Characterization of Cu-ZnO-ZrO₂ catalysts for stream reforming of methanol (SRM) by in situ Raman spectroscopy has been done. The results have been contrasted with those from reaction of methanol synthesis (MS) over the same catalysts. The results indicated that there are four Raman peaks on the surface of the catalyst for SRM reaction. The Raman spectra of 544 8 cm^-1 were assigned to CuO-ZnO, 652.8 cm^-1 to ZrO₂, 1361.8 cm^-1 to symmetry flex oscillatory adsorption of HCOO—Cu and 1590.3 cm^-1 to asymmetry flex oscillatory adsorption of OCO in formic acid species, respectively. The peak of 1350 cm^-1 and three peaks of 1550, 1585 and 1595 cm^-1 were assigned to Raman flex adsorbed band of formic acidic group and formic acidic salt on surface of catalyst for methanol synthesis. So formic acidic group existed on the surface of the catalysts for SRM and MS reactions. This result has an important significance for mechanism knowledge of SRM and MS reactions.

Key words: Cu-ZnO-ZrO₂, stream reforming of methanol, methanol synthesis, in situ Raman spectroscopy

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YUN Hong, ZHANG Hui, CHEN Jian-Hua, CHEN Hong-Bo. Characterization of Cu-ZnO-ZrO₂ Catalysts for Stream Reforming of Methanol by in situ Raman Spectroscopy[J]. Acta Chimica Sinica, 2004, 62(18): 1729-1732.

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Cu-ZnO-ZrO₂甲醇水蒸气重整催化剂的原位Raman表征

Characterization of Cu-ZnO-ZrO₂ Catalysts for Stream Reforming of Methanol by in situ Raman Spectroscopy

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Cu-ZnO-ZrO2甲醇水蒸气重整催化剂的原位Raman表征