Hydrogen Storage System Attained by HCOOH-CO 2 Couple: Recent Developments in Pd-Based Carbon-Supported Heterogeneous Catalysts

Paula Riquelme-García, Miriam Navlani-García () and Diego Cazorla-Amorós
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Paula Riquelme-García: Department of Inorganic Chemistry and Materials Institute, University of Alicante, Ap. 99, E-03080 Alicante, Spain
Miriam Navlani-García: Department of Inorganic Chemistry and Materials Institute, University of Alicante, Ap. 99, E-03080 Alicante, Spain
Diego Cazorla-Amorós: Department of Inorganic Chemistry and Materials Institute, University of Alicante, Ap. 99, E-03080 Alicante, Spain

Energies, 2024, vol. 17, issue 1, 1-28

Abstract: The present review revisits representative studies addressing the development of efficient Pd-based carbon-supported heterogeneous catalysts for two important reactions, namely, the production of hydrogen from formic acid and the hydrogenation of carbon dioxide into formic acid. The HCOOH-CO 2 system is considered a promising couple for a hydrogen storage system involving an ideal carbon-neutral cycle. Significant advancements have been achieved in the catalysts designed to catalyze the dehydrogenation of formic acid under mild reaction conditions, while much effort is still needed to catalyze the challenging CO 2 hydrogenation reaction. The design of Pd-based carbon-supported heterogeneous catalysts for these reactions encompasses both the modulation of the properties of the active phase (particle size, composition, and electronic properties) and the modification of the supports by means of the incorporation of nitrogen functional groups. These approaches are herein summarized to provide a compilation of the strategies followed in recent studies and to set the basis for a hydrogen storage system attained using the HCOOH-CO 2 couple.

Keywords: hydrogen storage; formic acid; CO 2; carbon materials; heterogeneous catalysts (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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