Scientific Reports

Jum'at, 11 Mei 2018 15:37 | Sudah dibaca 800 kali

A conservative CO₂-Methanol (CH₃OH) regeneration cycle, to capture and reutilize the greenhouse gas of CO₂ by 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 temperatur and pressure (NTP) with two kinds od CuMnOS nanoflower catalysts. The [Cu⁺]-high CuMnOS led to a CH₃OH yield of 21.1 mmol.g^-1catal.h^-1 in the CuMnOS-CO₂-H₂O system and the other [Cu⁺]-low one had a H₂ yield of 7.65 mmol.g^-1catal.h^-1 in 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 and ideal liqued hydrogen storage system for transportation application.

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