2012 Fiscal Year Final Research Report
Fixation of Carbon Dioxide with Hydrogen Using Organomotallic Hydride Complexes under Atmospheric Pressure in Water
| Project/Area Number |
21550061
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic chemistry
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2012
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| Keywords | 触媒・化学プロセス / 水素 / 光物性 / 地球温暖化 / 燃料電池 / 化学燃料 / 有機金属 / 水 |
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| Research Abstract |
The pH-selective decomposition of formic acid (HCOOH) leading to efficient generation of hydrogen was achieved at room temperature in deaerated water using a heterodinuclear iridium-ruthenium complex (1) as a catalyst. Hydrogen isotopic gases (HD and/or D2) were selectively generated using deuterated formic acid (DCOOH) or D2O in place of HCOOH or H2O, respectively. The complex 1 is found to act as an efficient catalyst for four-electron reduction of O2 with formic acid at room temperature in aerated water. Photocatalytic hydrogen evolution occurs at room temperature under visible-light irradiation of an aqueous solution of [Ru(bpy)3]2+(bpy = 2,2’-bipyridine) and ascorbic acid in the presence of 1. Interconversion between H2 and formic acid accompanied by CO2emission and fixation has been made possible in water at ambient temperature under atmospheric pressure by using a [C,N] cyclometallated organoiridium complex as an efficient catalyst for both directions depending on pH.
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[Journal Article] Metallocene bis(perfluoroalkanesulfonate)s as air-stable cationic Lewis acids2009
Author(s)
Renhua Qiu, Guoping Zhang, Xinhua Xu, Kangbin Zou, Lingling Shao, Dawei Fang, Yinhui Li, Akihiro Orita, Ryosuke Saijo, Hidetaka Mineyama, Tomoyoshi Suenobu, Shunichi Fukuzumi, Delie An, and Junzo Otera
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Journal Title
J. Organomet. Chem
Volume: 694
Pages: 1524-1528
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