Solar-Driven Production of Hydrogen Peroxide from Water and Dioxygen
- 주제(키워드) hydrogen peroxide , photocatalyst , two-electron oxidation of water , two-electron reduction of dioxygen , water oxidation catalyst
- 주제(기타) Chemistry, Multidisciplinary
- 설명문(일반) [Fukuzumi, Shunichi; Lee, Yong-Min; Nam, Wonwoo] Ewha Womans Univ, Dept Chem & Nano Sci, Seoul 03760, South Korea; [Fukuzumi, Shunichi] Meijo Univ, Grad Sch Sci & Engn, Nagoya, Aichi 4688502, Japan
- 등재 SCIE, SCOPUS
- 발행기관 WILEY-V C H VERLAG GMBH
- 발행년도 2018
- URI http://www.dcollection.net/handler/ewha/000000151390
- 본문언어 영어
- Published As http://dx.doi.org/10.1002/chem.201704512
초록/요약
Hydrogen peroxide, which is a green oxidant and fuel, is produced by a two-electron/two-proton reduction of dioxygen, two-electron/two-proton oxidation of water, or a combination of four-electron/four-proton or/and two-electron/two-proton oxidation of water and two-electron/two-proton reduction of dioxygen. There are many reports on electrocatalysts for selective two-electron/two-proton reduction of dioxygen to produce hydrogen peroxide instead of four-electron/four-proton reduction of dioxygen to produce water. As compared with the two-electron/two-proton reduction of dioxygen to produce hydrogen peroxide, fewer catalysts are known for the selective two-electron/two-proton oxidation of water to produce hydrogen peroxide instead of four-electron/four-proton oxidation of water to evolve dioxygen. Thus, solar-driven production of hydrogen peroxide mainly consists of the catalytic four-electron/four-proton oxidation of water and the catalytic two-electron/two-proton reduction of dioxygen. The overall reaction is the solar-driven oxidation of water by dioxygen to produce hydrogen peroxide. Either or both the four-electron/four-proton or/and the two-electron/two-proton oxidation of water and the two-electron/two-proton reduction of dioxygen requires photocatalysts. The yield of hydrogen peroxide is improved when the compartment for the photocatalytic four-electron/four-proton or/and two-electron/two-proton oxidation of water is separated from that for the catalytic two-electron/two-proton reduction of dioxygen using a two-compartment cell separated by a membrane. The overall solar-driven oxidation of water by dioxygen, which is the greenest oxidant, to produce hydrogen peroxide can be combined with catalytic oxidation of various substrates by hydrogen peroxide
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