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Citation: Wang Jin, Chen Hong-Bo, Yun Hong, Lin Jing-Dong, Yi Jun, Zhang Hong-Bin, Liao Dai-Wei. Study on Rh-ZnO/MWNTs Catalyst for Methanol Synthesis[J]. Acta Physico-Chimica Sinica, ;2003, 19(01): 65-69. doi: 10.3866/PKU.WHXB20030115 shu

Study on Rh-ZnO/MWNTs Catalyst for Methanol Synthesis

1.
Department of Chemistry, 2State Key Laboratory for Physical Chemistry of Solid Surfaces, 3Institute of Physical Chemistry, 4Department of Ocean, Xiamen University, Xiamen　361005

Received Date: 2 April 2002
Available Online: 15 January 2003

A novel catalyst for methanol synthesis, ZnO-promoted rhodium supported on multi-wall carbon nanotubes (MWNTs), was developed. As Rh content in catalyst is 4％(w), the catalyst has higher specific surfafic area of 99.6 m2•g－1 and activation energy of 68.8 kJ•mol－1. The highest catalytic activity of CH3OH, 411.4 mg /g cat•h, can be obtained at 563 K and under 1 Mpa (Table 1). The results of TEM, TPR and TPD showed that MWNTs can enhance the dispersion degree of Rh on the catalyst surface, increase the reduction temperature of the catalyst and the adsorption capacity of hydrogen species. These results will contribute to a better understanding of the synthergistic action of reaction components and the nature of catalytic activity center in the catalyst.
- Methanol synthesis;Rh catalyst;Multi-wall carbon nanotubes (MWNTs);　Hydrogen storing
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