Characterization of CuMn-spinel catalyst for methanol steam reforming |
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| Authors: | Tetsuya Fukunaga Naonori Ryumon Nobuyuki Ichikuni Shogo Shimazu |
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| Affiliation: | aDepartment of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Yayoi 1-33, Inage, Chiba 263-8522, Japan;bAdvanced Technology Research Laboratories, Idemitsu Kosan Co., Ltd., 1280 Kami-izumi, Sodegaura, Chiba 299-0293, Japan |
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| Abstract: | CuMn-spinel oxide (CuMn(S)) and non-spinel CuMn (CuMn(NS)) oxide have been obtained by calcining the same precursor at 900 °C and 300 °C, respectively. CuMn(S) was composed of Cu1.5Mn1.5O4 spinel and Mn3O4, while CuMn(NS) consisted of CuO and Mn3O4. XRD, EXAFS, and TEM measurements of the samples reduced in hydrogen revealed that both CuMn(S) and CuMn(NS) were reduced to Cu metal dispersed on MnO and that the particle size of Cu metal from the CuMn(S) was smaller than that from CuMn(NS). In methanol steam reforming, the spinel derived catalyst showed higher activity than the non-spinel due to the higher dispersion of the Cu metal. |
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| Keywords: | Methanol Dimethyl ether Steam reforming Hydrogen Spinel oxide |
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