Advances in nonprecious metal homogeneously catalyzed formic acid dehydrogenation

Formic acid (FA) possesses a high volumetric concentration of H2 (53 g L-1 ). Moreover, it can be easily prepared, stored, and transported. Therefore, FA stands out as a potential liquid organic hydrogen carrier (LOHC), which allows storage and transportation of hydrogen in a safe way. The dehydroge...

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Autores: Iglesias M., Fernández-Alvarez F.J.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:118141
Acceso en línea:http://zaguan.unizar.es/record/118141
Access Level:acceso abierto
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spelling Advances in nonprecious metal homogeneously catalyzed formic acid dehydrogenationIglesias M.Fernández-Alvarez F.J.Formic acid (FA) possesses a high volumetric concentration of H2 (53 g L-1 ). Moreover, it can be easily prepared, stored, and transported. Therefore, FA stands out as a potential liquid organic hydrogen carrier (LOHC), which allows storage and transportation of hydrogen in a safe way. The dehydrogenation to produce H2 and CO2 competes with its dehydration to give CO and H2 O. For this reason, research on selective catalytic FA dehydrogenation has gained attention in recent years. Several examples of highly active homogenous catalysts based on precious metals effective for the selective dehydrogenation of FA have been reported. Among them are the binuclear iridium-bipyridine catalysts described by Fujita and Himeda et al. (TOF = 228, 000 h-1 ) and the cationic species [IrClCp*(2, 2'-bi-2-imidazoline)]Cl (TOF = 487, 500 h-1 ). However, examples of catalytic systems effective for the solventless dehydrogenation of FA, which is of great interest since it allows to reduce the reaction volume and avoids the use of organic solvents that could damage the fuel cell, are scarce. In this context, the development of transition metal catalysts based on cheap and easily available nonprecious metals is a subject of great interest. This work contains a summary on the state of the art of catalytic dehydrogenation of FA in homogeneous phase, together with an account of the catalytic systems based on non-precious metals so far reported. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://zaguan.unizar.es/record/118141reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/semantics/openAccessoai:zaguan.unizar.es:1181412026-05-29T13:59:51Z
dc.title.none.fl_str_mv Advances in nonprecious metal homogeneously catalyzed formic acid dehydrogenation
title Advances in nonprecious metal homogeneously catalyzed formic acid dehydrogenation
spellingShingle Advances in nonprecious metal homogeneously catalyzed formic acid dehydrogenation
Iglesias M.
title_short Advances in nonprecious metal homogeneously catalyzed formic acid dehydrogenation
title_full Advances in nonprecious metal homogeneously catalyzed formic acid dehydrogenation
title_fullStr Advances in nonprecious metal homogeneously catalyzed formic acid dehydrogenation
title_full_unstemmed Advances in nonprecious metal homogeneously catalyzed formic acid dehydrogenation
title_sort Advances in nonprecious metal homogeneously catalyzed formic acid dehydrogenation
dc.creator.none.fl_str_mv Iglesias M.
Fernández-Alvarez F.J.
author Iglesias M.
author_facet Iglesias M.
Fernández-Alvarez F.J.
author_role author
author2 Fernández-Alvarez F.J.
author2_role author
description Formic acid (FA) possesses a high volumetric concentration of H2 (53 g L-1 ). Moreover, it can be easily prepared, stored, and transported. Therefore, FA stands out as a potential liquid organic hydrogen carrier (LOHC), which allows storage and transportation of hydrogen in a safe way. The dehydrogenation to produce H2 and CO2 competes with its dehydration to give CO and H2 O. For this reason, research on selective catalytic FA dehydrogenation has gained attention in recent years. Several examples of highly active homogenous catalysts based on precious metals effective for the selective dehydrogenation of FA have been reported. Among them are the binuclear iridium-bipyridine catalysts described by Fujita and Himeda et al. (TOF = 228, 000 h-1 ) and the cationic species [IrClCp*(2, 2'-bi-2-imidazoline)]Cl (TOF = 487, 500 h-1 ). However, examples of catalytic systems effective for the solventless dehydrogenation of FA, which is of great interest since it allows to reduce the reaction volume and avoids the use of organic solvents that could damage the fuel cell, are scarce. In this context, the development of transition metal catalysts based on cheap and easily available nonprecious metals is a subject of great interest. This work contains a summary on the state of the art of catalytic dehydrogenation of FA in homogeneous phase, together with an account of the catalytic systems based on non-precious metals so far reported. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
publishDate 2021
dc.date.none.fl_str_mv 2021
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dc.language.none.fl_str_mv Inglés
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instname_str Universidad de Zaragoza
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