A review of formic acid decomposition routes on transition metals for its potential use as a liquid H2 carrier
Formic acid (HCOOH) has emerged as a promising H 2 energy carrier due to its reasonable gravimetric and volumetric H 2 densities, low toxicity, low flammability, and ease of handling. Its possible productions from biogenic feedstocks also make it an attractive source to produce H 2 on demand. The ut...
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| Published in: | The Korean journal of chemical engineering Vol. 39; no. 11; pp. 2883 - 2895 |
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| Main Authors: | , |
| Format: | Journal Article |
| Language: | English |
| Published: |
New York
Springer US
01-11-2022
Springer Nature B.V 한국화학공학회 |
| Subjects: | |
| Online Access: | Get full text |
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| Summary: | Formic acid (HCOOH) has emerged as a promising H
2
energy carrier due to its reasonable gravimetric and volumetric H
2
densities, low toxicity, low flammability, and ease of handling. Its possible productions from biogenic feedstocks also make it an attractive source to produce H
2
on demand. The utilization of HCOOH as a liquid H
2
carrier requires catalytic systems to selectively dehydrogenate HCOOH at low temperatures without forming CO products that can act as a poison in fuel cell applications. In this review, we summarize the recent progress in understanding HCOOH decomposition via dehydrogenation (to CO
2
/H
2
) and dehydration (to CO/H
2
O) pathways on transition metals, including Cu, Pt, Pd, and Au. The focus is on discussing the surface chemistry of HCOOH reactions on transition metals, including the types of bound intermediates and the identity and kinetic relevance of elementary steps. In doing so, we review current catalyst design strategies for HCOOH dehydrogenation to facilitate the future development of catalytic processes for H
2
storage/utilization. |
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| ISSN: | 0256-1115 1975-7220 |
| DOI: | 10.1007/s11814-022-1276-z |