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Citation: Chen Hong-Bo, Yu La-Jia, Liao Dai-Wei, Lin Guo-Dong, Zhang Hong-Bin, Cai Qi-Rui. The Effect of Cr₂O₃ over Copper-based Catalysts for Methanol Synthesis[J]. Acta Physico-Chimica Sinica, ;1998, 14(06): 534-539. doi: 10.3866/PKU.WHXB19980610 shu

The Effect of Cr₂O₃ over Copper-based Catalysts for Methanol Synthesis

1.
Institute of Physical Chemistry,Department of Chemistry,Xiamen University,State Key Laboratory Physics Chemistry of the Solid Surface,Xiamen 361005

Received Date: 22 August 1997
Available Online: 15 June 1998

The method of doping the trivalent, canon into copper-based catalyst for methanol synthesis is effective in enhancing catalytic activity. The form of chromium in the catalyst and the nature of promotion effect as well as its relation to catalytic activity after doping Cr2O3 into Cu-ZnO-Al2O3 has been studied by XRD, ESR,TPR and the determination of catalytic activity. The results showed that chromium exists in the ZnO lattice as both Cr3+ and ZnCr2O4. Catalytic activity of Cu-ZnO-Al2O3-Cr2O3 catalyst for methanol synthesis and ESR intensity of the monovalent defect induced by dissolving Cr3+ into ZnO lattice as well as other ESR, species in catalyst are well interrelated. The catalyst containing one per cent of Cr3+(atomic ratio) has the highest catalytic activity.
- Methanol synthesis,
- Copper-based catalyst,
- Defect,
- Cr2O3
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沈阳化工大学材料科学与工程学院沈阳 110142

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The Effect of Cr2O3 over Copper-based Catalysts for Methanol Synthesis

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通讯作者: 陈斌, bchen63@163.com

The Effect of Cr₂O₃ over Copper-based Catalysts for Methanol Synthesis