Lee, Jin Hee Kim, Sang Woo Ahn, Byoung Sung Moon, Dong Ju 2024-01-20T08:03:18Z 2024-01-20T08:03:18Z 2021-09-04 2015-01 1533-4880 https://pubs.kist.re.kr/handle/201004/125966 A series of Cu-ZnO-Al2O3 catalysts were prepared by coprecipitation method. The pH of solution was adjusted from 6 to 8 by using Na2CO3 solution. The prepared catalysts were evaluated for methanol synthesis from syngas (H-2, CO and CO2) at lower temperature and pressures. Catalysts have been characterized by N-2 physisorption, porosity measurements, XRD, TG/DTA, TPD (CO2/NH3) and XPS. Among all the catalysts pH 7 catalyst was shown higher catalytic activity towards methanol formation. It was found that the catalyst is mainly possessed the higher number of surface active sites (Cu-0/Cu+), acidic and basic nature and optimum synergism between three components (Cu-ZnO-Al2O3). The activity results were evaluated with and without CO2 in syngas and it was found that higher CO conversion and higher methanol selectivity in the presence CO2. English AMER SCIENTIFIC PUBLISHERS Methanol Synthesis Over Cu-ZnO-Al2O3 Catalyst at Low Pressure Article 10.1166/jnn.2015.8352 1 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.15, no.1, pp.400 - 403 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 15 1 400 403 scie scopus 000345054000069 2-s2.0-84920540750 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article Methanol Synthesis Cu-ZnO-Al2O3 Catalysts Different pH Low-Pressure