Yu, B. Y. Lee, K. H. Kim, K. Byun, D. J. Ha, H. P. Byun, J. Y. 2024-01-20T16:34:55Z 2024-01-20T16:34:55Z 2021-09-05 2011-07 1533-4880 https://pubs.kist.re.kr/handle/201004/130211 The partial oxidation of dimethyl ether (DME) was investigated using the structured catalyst Rh/Al2O3/Al. The porous Al2O3 layer was synthesized on the aluminum plate through anodic oxidation in an oxalic-acid solution. It was observed that about 20 nm nanopores were well developed in the Al2O3 layer. The thickness of Al2O3 layer can be adjusted by controlling the anodizing time and current density. After pore-widening and hot-water treatment, the Al2O3/Al plate was calcined at 500 degrees C for 3 h. The obtained gamma-Al2O3 had a specific surface area of 160 m(2)/g, making it fit to be used as a catalyst support. A microchannel reactor was designed and fabricated to evaluate the catalytic activity of Rh/Al2O3/Al in the partial oxidation of DME. The structured catalyst showed an 86% maximum hydrogen yield at 450 degrees C. On the other hand, the maximum syngas yield by a pack-bed-type catalyst could be attained by using a more than fivefold Rh amount compared to that used in the structured Rh/Al2O3/Al catalyst. English AMER SCIENTIFIC PUBLISHERS HEXAGONAL PORE ARRAYS ALTERNATIVE FUEL DME Partial Oxidation of Dimethyl Ether Using the Structured Catalyst Rh/Al2O3/Al Prepared Through the Anodic Oxidation of Aluminum Article 10.1166/jnn.2011.4412 1 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.11, no.7, pp.6298 - 6305 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 11 7 6298 6305 scie scopus 000293663200130 2-s2.0-84863075929 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article HEXAGONAL PORE ARRAYS ALTERNATIVE FUEL DME DME Partial-Oxidation Reforming Anodic Oxidation Structured Catalyst Rh/Al2O3/Al