Kousar, Rehana Kim, Do Hyung Yu, Byung-Yong Ha, Heon Phil Kim, Sang Hoon Byun, Ji Young 2024-01-20T15:00:26Z 2024-01-20T15:00:26Z 2021-09-05 2012-05-07 0926-860X https://pubs.kist.re.kr/handle/201004/129265 A series of plate type anodic alumina (gamma-Al2O3) supported Cu and Cr catalysts were employed to investigate their reactivity in the partial oxidation (PO) of dimethyl ether (DME) in a microreactor. The effect of metal concentration and reaction temperature on DME conversion to hydrogen was assessed. It was found that conversion of DME to hydrogen by PO depends both on reaction temperature and active metal concentration. The catalysts were characterized by surface area (BET), X-ray diffraction (XRD). X-ray photoelectron spectroscopy (XPS) techniques. The metal loading as active component was investigated by electron probe micro analysis (EPMA) and X-ray fluorescence spectroscopy (XRF). The results showed that Cu as active component on gamma-Al2O3 possessed better activity than Cr. Further, the catalytic activity of Cu was enhanced in the presence of Cr. The XRD and XPS analysis indicated that enhanced Cu activity in the presence of Cr could be correlated to the partial existence of CuCr2O4 along with CuO. (C) 2012 Elsevier B.V. All rights reserved. English ELSEVIER PARTIAL OXIDATION HYDROGEN-PRODUCTION FUEL-CELL COMPOSITE CATALYSTS NATURAL-GAS PERFORMANCE TECHNOLOGY SPINEL PLATE Dimethyl ether (DME) reforming by microreactor using Cu and Cr as active components over gamma alumina Article 10.1016/j.apcata.2012.02.038 1 APPLIED CATALYSIS A-GENERAL, v.423, pp.176 - 184 APPLIED CATALYSIS A-GENERAL 423 176 184 scie scopus 000303292600023 2-s2.0-84859518789 Chemistry, Physical Environmental Sciences Chemistry Environmental Sciences & Ecology Article PARTIAL OXIDATION HYDROGEN-PRODUCTION FUEL-CELL COMPOSITE CATALYSTS NATURAL-GAS PERFORMANCE TECHNOLOGY SPINEL PLATE gamma alumina Dimethyl ether Reforming Hydrogen production Cu Cr Catalyst