Catalytic interconversion between hydrogen and formic acid at ambient temperature and pressure

Yuta Maenaka; Tomoyoshi Suenobu; Shunichi Fukuzumi

doi:10.1039/c2ee03315a

Catalytic interconversion between hydrogen and formic acid at ambient temperature and pressure

Yuta Maenaka, Tomoyoshi Suenobu, Shunichi Fukuzumi

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

184 Scopus citations

Abstract

Interconversion between hydrogen and formic acid in water at ambient temperature and pressure has been made possible by using a [C,N] cyclometalated organoiridium complex, [Ir^III(Cp*)(4-(1H-pyrazol-1-yl- κN²)benzoic acid-κC³)(H₂O)] ₂SO₄ [1]₂·SO₄, as an efficient catalyst for both directions depending on pH. Hydrogenation of carbon dioxide by hydrogen occurs in the presence of a catalytic amount of 1 under an atmospheric pressure of H₂ and CO₂ in weakly basic water (pH 7.5) at room temperature, whereas formic acid efficiently decomposes to afford H₂ and CO₂ in the presence of 1 in acidic water (pH 2.8).

Original language	English
Pages (from-to)	7360-7367
Number of pages	8
Journal	Energy and Environmental Science
Volume	5
Issue number	6
DOIs	https://doi.org/10.1039/c2ee03315a
State	Published - Jun 2012

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title = "Catalytic interconversion between hydrogen and formic acid at ambient temperature and pressure",

abstract = "Interconversion between hydrogen and formic acid in water at ambient temperature and pressure has been made possible by using a [C,N] cyclometalated organoiridium complex, [IrIII(Cp*)(4-(1H-pyrazol-1-yl- κN2)benzoic acid-κC3)(H2O)] 2SO4 [1]2·SO4, as an efficient catalyst for both directions depending on pH. Hydrogenation of carbon dioxide by hydrogen occurs in the presence of a catalytic amount of 1 under an atmospheric pressure of H2 and CO2 in weakly basic water (pH 7.5) at room temperature, whereas formic acid efficiently decomposes to afford H2 and CO2 in the presence of 1 in acidic water (pH 2.8).",

author = "Yuta Maenaka and Tomoyoshi Suenobu and Shunichi Fukuzumi",

year = "2012",

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doi = "10.1039/c2ee03315a",

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journal = "Energy and Environmental Science",

issn = "1754-5692",

publisher = "Royal Society of Chemistry",

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T1 - Catalytic interconversion between hydrogen and formic acid at ambient temperature and pressure

AU - Maenaka, Yuta

AU - Suenobu, Tomoyoshi

AU - Fukuzumi, Shunichi

PY - 2012/6

Y1 - 2012/6

N2 - Interconversion between hydrogen and formic acid in water at ambient temperature and pressure has been made possible by using a [C,N] cyclometalated organoiridium complex, [IrIII(Cp*)(4-(1H-pyrazol-1-yl- κN2)benzoic acid-κC3)(H2O)] 2SO4 [1]2·SO4, as an efficient catalyst for both directions depending on pH. Hydrogenation of carbon dioxide by hydrogen occurs in the presence of a catalytic amount of 1 under an atmospheric pressure of H2 and CO2 in weakly basic water (pH 7.5) at room temperature, whereas formic acid efficiently decomposes to afford H2 and CO2 in the presence of 1 in acidic water (pH 2.8).

AB - Interconversion between hydrogen and formic acid in water at ambient temperature and pressure has been made possible by using a [C,N] cyclometalated organoiridium complex, [IrIII(Cp*)(4-(1H-pyrazol-1-yl- κN2)benzoic acid-κC3)(H2O)] 2SO4 [1]2·SO4, as an efficient catalyst for both directions depending on pH. Hydrogenation of carbon dioxide by hydrogen occurs in the presence of a catalytic amount of 1 under an atmospheric pressure of H2 and CO2 in weakly basic water (pH 7.5) at room temperature, whereas formic acid efficiently decomposes to afford H2 and CO2 in the presence of 1 in acidic water (pH 2.8).

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DO - 10.1039/c2ee03315a

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JO - Energy and Environmental Science

JF - Energy and Environmental Science

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Catalytic interconversion between hydrogen and formic acid at ambient temperature and pressure

Abstract

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