Hydrogen generation from formic acid and alcohols using homogeneous catalysts

Johnson, Tarn C.; Morris, David J.; Wills, Martin

doi:10.1039/b904495g

Cited by 618 publications

(310 citation statements)

References 59 publications

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“…[1][2][3][4][5][6][7] However, most of the homogeneous catalysts suffer from drawbacks such as needs of an acid or base additive and expensive ligands and difficulties in separation and recycle of the catalyst. To meet environmental and economical acceptability, efforts have been devoted to heterogeneous catalytic systems for acceptorless dehydrogenation of alcohols.…”

Section: Introductionmentioning

confidence: 99%

Supported rhenium nanoparticle catalysts for acceptorless dehydrogenation of alcohols: structure–activity relationship and mechanistic studies

Kon

Onodera

Toyao

et al. 2016

Catal. Sci. Technol.

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Section: Introductionmentioning

confidence: 99%

Supported rhenium nanoparticle catalysts for acceptorless dehydrogenation of alcohols: structure–activity relationship and mechanistic studies

Kon

Onodera

Toyao

et al. 2016

Catal. Sci. Technol.

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“…Using sunlight to achieve these transformations can revolutionize the field of H 2 16,17 and hydrocarbon 18,19 fuel production and biomass conversion. 20,21 Semiconductor-metal (SC-M) heterostructures are ideal photocatalytic materials; 22−26 they become redox-active upon illumination and remain redox-active after dark storage for several hours. 27 The semiconductor strongly absorbs light, and the metal collects photogenerated charges.…”

mentioning

confidence: 99%

Selective Alcohol Dehydrogenation and Hydrogenolysis with Semiconductor-Metal Photocatalysts: Toward Solar-to-Chemical Energy Conversion of Biomass-Relevant Substrates

Ruberu

Nelson

Slowing

et al. 2012

J. Phys. Chem. Lett.

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Photocatalytic conversion of biomass is a potentially transformative concept in renewable energy. Dehydrogenation and hydrogenolysis of biomass-derived alcohols can produce renewable fuels such as H 2 and hydrocarbons, respectively. We have successfully used semiconductor-metal heterostructures for sunlightdriven dehydrogenation and hydrogenolysis of benzyl alcohol. The heterostructure composition dictates activity, product distribution, and turnovers. A few metal (M = Pt, Pd) islands on the semiconductor (SC) surface significantly enhance activity and selectivity and also greatly stabilize the SC against photoinduced etching and degradation. Under selected conditions, CdS-Pt favors dehydrogenation (H 2 ) over hydrogenolysis (toluene) 8:1, whereas CdS 0.4 Se 0.6 -Pd favors hydrogenolysis over dehydrogenation 3:1. Photochemically generated, surface-adsorbed hydrogen is useful in tandem catalysis, for example, via transfer hydrogenation. We expect this work will lead to new paradigms for sunlight-driven conversions of biomassrelevant substrates. KeywordsAlcohol dehydrogenation, Benzyl alcohol, CdS, photo-catalytic, photo-induced, product distributions, renewable energies, renewable fuels, semiconductor metals, tandem catalysis, transfer hydrogenations, biomass, cadmium compounds, hydrolysis ABSTRACT: Photocatalytic conversion of biomass is a potentially transformative concept in renewable energy. Dehydrogenation and hydrogenolysis of biomass-derived alcohols can produce renewable fuels such as H 2 and hydrocarbons, respectively. We have successfully used semiconductor-metal heterostructures for sunlight-driven dehydrogenation and hydrogenolysis of benzyl alcohol. The heterostructure composition dictates activity, product distribution, and turnovers. A few metal (M = Pt, Pd) islands on the semiconductor (SC) surface significantly enhance activity and selectivity and also greatly stabilize the SC against photoinduced etching and degradation. Under selected conditions, CdS-Pt favors dehydrogenation (H 2 ) over hydrogenolysis (toluene) 8:1, whereas CdS 0.4 Se 0.6 -Pd favors hydrogenolysis over dehydrogenation 3:1. Photochemically generated, surface-adsorbed hydrogen is useful in tandem catalysis, for example, via transfer hydrogenation. We expect this work will lead to new paradigms for sunlight-driven conversions of biomass-relevant substrates. SECTION: Energy Conversion and Storage; Energy and Charge Transport S olar-to-chemical energy conversion of biomass is a

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“…[9,[47][48][49][50][51][52] Formic acid contains only 4.4 wt% hydrogen, less than the previous mentioned materials. The abundance of carbon dioxide as substrate enhances the attraction of formic acid as simple and cheap hydrogen storage material.…”

Section: Formic Acidmentioning

confidence: 99%

Hydrogen Storage Using Ionic Liquid Media

Prechtl¹,

Sahler

2013

COC

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Abstract:The application of ionic liquids revealed a new dimension in many fields of chemistry. In the particular field of hydrogen storage system ionic liquids find application in several different ways. After a short introduction about the matter of hydrogen storage and its advantages and challenges, the different approaches of ionic liquid application in this field are presented. The different approaches can be classified into the application of ionic liquids as (i) solvent, as (ii) co-catalyst, as (iii) catalyst, as (iv) hydrogen storage material and as (v) stabilizing agent for nano particles. The benefit of ionic liquids for the system is discussed in this review.

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Hydrogen generation from formic acid and alcohols using homogeneous catalysts

Abstract: This tutorial review describes recent progress in the development of homogeneous catalytic methodology for the direct generation of hydrogen gas from formic acid and alcohols.

Cited by 618 publications

References 59 publications

Supported rhenium nanoparticle catalysts for acceptorless dehydrogenation of alcohols: structure–activity relationship and mechanistic studies

Supported rhenium nanoparticle catalysts for acceptorless dehydrogenation of alcohols: structure–activity relationship and mechanistic studies

Selective Alcohol Dehydrogenation and Hydrogenolysis with Semiconductor-Metal Photocatalysts: Toward Solar-to-Chemical Energy Conversion of Biomass-Relevant Substrates

Hydrogen Storage Using Ionic Liquid Media

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