title: CuMnOS Nanoflowers with Different Cu+/Cu2+Ratios for the CO2-to-CH3OH and the CH3OH-to-H2Redox Reactions.
abstract: A conservative CO2-Methanol (CH3OH) regeneration cycle, to capture and reutilize the greenhouse gas of CO2by aqueous hydrogenation for industry-useful CH3OH and to convert aqueous CH3OH solution by dehydrogenation for the clean energy of hydrogen (H2), is demonstrated at normal temperature and pressure (NTP) with two kinds of CuMnOS nanoflower catalysts. The [Cu+]-high CuMnOS led to a CH3OH yield of 21.1 mmol·g-1catal.·h-1in the CuMnOS-CO2-H2O system and the other [Cu+]-low one had a H2yield of 7.65 mmol·g-1catal.·h-1in the CuMnOS-CH3OH-H2O system. The successful redox reactions at NTP rely on active lattice oxygen of CuMnOS catalysts and its charge (hole or electron) transfer ability between Cu+and Cu2+. The CO2-hydrogenated CH3OH in aqueous solution is not only a fuel but also an ideal liquid hydrogen storage system for transportation application.
authors.affiliation: Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.|College of Material Engineering, Fujian Agriculture &Forestry University, Fuzhou 350002, China.
authors.forename: Xiaoyun
authors.initials: X
authors.lastname: Chen
authors.affiliation: Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
authors.forename: Hairus
authors.initials: H
authors.lastname: Abdullah
authors.affiliation: Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
authors.forename: Dong-Hau
authors.initials: DH
authors.lastname: Kuo