Homogeneous Catalytic Dehydrogenation of Formic Acid: Progress Towards a Hydrogen-Based Economy

Laurenczy, Gábor; Dyson, Paul J.

doi:10.5935/0103-5053.20140235

Cited by 23 publications

(28 citation statements)

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“…Therefore, the discovery of highly weight-efficient strategies for on-demand hydrogen release from hydrogen-rich liquids has value. Formic acid (HCO 2 H, FA, 7.5 MJ l −1 ) is a hydrogen carrier, owing to its ability to release hydrogen under mild conditions with only CO 2 as a by-product 1 2 3 4 5 6 , which can then be recycled, in principle, to give a carbon-neutral fuel cycle 7 8 9 .…”

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confidence: 99%

A prolific catalyst for dehydrogenation of neat formic acid

et al. 2016

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Formic acid is a promising energy carrier for on-demand hydrogen generation. Because the reverse reaction is also feasible, formic acid is a form of stored hydrogen. Here we present a robust, reusable iridium catalyst that enables hydrogen gas release from neat formic acid. This catalysis works under mild conditions in the presence of air, is highly selective and affords millions of turnovers. While many catalysts exist for both formic acid dehydrogenation and carbon dioxide reduction, solutions to date on hydrogen gas release rely on volatile components that reduce the weight content of stored hydrogen and/or introduce fuel cell poisons. These are avoided here. The catalyst utilizes an interesting chemical mechanism, which is described on the basis of kinetic and synthetic experiments.

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confidence: 99%

A prolific catalyst for dehydrogenation of neat formic acid

et al. 2016

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“…[27] . Another approach involves reduction of CO 2 in a heterogeneous system, with additional research including electroreduction [28][29][30][31][32][33][34][35][36][37][38][39][40] and photoreduction of CO 2 [29,36,[41][42][43][44] . Many of these effort s have been reviewed extensively [18,19,21,22,[45][46][47][48][49][50][51][52][53][54][55][56] ; therefore, this perspective will concentrate on advantages and challenges of heterogeneous and homogeneous approaches introduced since 2015, with only minor mention of the electrocatalytic reduction, and will only discuss details of the most pertinent references.…”

Section: Hcoo H (L)mentioning

confidence: 99%

“…Comparison between various methods of synthesis of FA/FS. Mostly based on precious metals[21][22][23][24][45][46][47][48][49]57,58] • Poor solubility of catalysts in aqueous systems • Requires presence of base, which leads to FS and not FA • Very often, use of expensive bases • Very few water-based systems exist Heterogeneous• Low selectivity toward desired product[45,51,53,54,55,57] • Catalyst may be poisoned by one of the products (CO) Electroreduction• High energy consumption due to the slow kinetics[41,46,59] • Needs high over-potential • Low product selectivity (in water, reduction of CO 2 competes with the H 2 evolution reaction) Photoreduction• Dependent on the presence of photosensitizer[43,46,57] • Often use the ultraviolet light Hydrogen capacities of selected FS at their solubility limits at 20 °C.…”

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confidence: 99%

Challenges and opportunities for using formate to store, transport, and use hydrogen

Grubel

Jeong

Yoon

et al. 2020

Journal of Energy Chemistry

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“…21) is promoted by metal catalysts [30]. There has been growing interest towards formic acid or potassium formate based hydrogen generation in fuel cells [76,77]. Long operation times and instant recharge with no dependence on the electrical socket are the advantages when applied in portable devices.…”

Section: Formic Acid As Source Of Hydrogen and Carbon Monoxidementioning

confidence: 99%

Formic Acid

Hietala¹,

Vuori²,

Johnsson³

et al. 2016

Ullmann's Encyclopedia of Industrial Chemistry

128

141

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The article contains sections titled: 1. Introduction 2. Physical Properties 3. Chemical Properties 3.1. Stability 3.2. Carboxylic Acid Reactions 3.3. Other Reactions 4. Production 4.1. Methyl Formate Hydrolysis 4.1.1. Kemira ‐ Leonard Process 4.1.2. BASF Process 4.1.3. USSR Process 4.2. Production from Formates 4.2.1. Formates as Polyol Byproducts 4.2.2. Formates from Carbon Monoxide 4.3. Formic Acid from Carbon Dioxide 4.4. Formic Acid from Biomass 4.5. Other Processes 4.6. Recovery of Formic Acid 5. Environmental Protection 6. Quality Specifications 7. Chemical Analysis 8. Storage and Transportation 9. Legal Aspects 10. Uses 10.1. Biomass Preservation 10.1.1. Silage 10.1.2. Animal Biomass 10.2 Leather 10.3. Textile 10.4. Feed Additives 10.5. Pharmaceuticals and Food Additives 10.6. Other Uses 10.6.1. Rubber Coagulation 10.6.2. Gas desulfurization 10.6.3. Well acidifizers 10.6.4. Formic Acid as Source of Hydrogen and Carbon Dioxide 10.6.5. Cleaning Agents 10.6.6. Solvent Use 11. Economic Aspects 12. Derivatives 12.1. Salts 12.1.1. Sodium Formate 12.1.2. Potassium Formate 12.1.3. Other Formate Salts 12.2. Esters 12.1.1. Methyl Formate 12.1.2. Ethyl Formate 12.2.3. Other Esters 12.3. Performic Acid 13. Toxicology and Occupational Health

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Homogeneous Catalytic Dehydrogenation of Formic Acid: Progress Towards a Hydrogen-Based Economy

Cited by 23 publications

References 1 publication

A prolific catalyst for dehydrogenation of neat formic acid

A prolific catalyst for dehydrogenation of neat formic acid

Challenges and opportunities for using formate to store, transport, and use hydrogen

Formic Acid

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