TY - JOUR
T1 - CO2 hydrogenation for the production of higher alcohols
T2 - Trends in catalyst developments, challenges and opportunities
AU - Latsiou, Angeliki I.
AU - Charisiou, Nikolaos D.
AU - Frontistis, Zacharias
AU - Bansode, Atul
AU - Goula, Maria A.
PY - 2023
Y1 - 2023
N2 - Higher alcohol (HA) synthesis via the hydrogenation of CO2 constitutes a relatively new and exciting field of research that has the potential to help towards the de-carbonization of the energy sector. The process poses formidable challenges, as it demands the formation of at least one C-C bond, when CO2 is thermodynamically stable, fully oxidized and kinetically inert. This work provides a comprehensive and critical literature review of the catalytic formulations that have been employed, in both fixed-bed and batch reactors, which include noble metal catalysts, transition metal-based systems, post-transition metal catalysts, bimetallic, multimetallic/multifunctional catalysts, Metal Organic Frameworks (MOFs), perovskite-, and zeolite-based catalysts. The critical role of promoters and supports and the effect that the reaction conditions have on performance are also discussed. Emphasis has been given to single atom catalysts (SACs), as the high specific activity of these systems seems to hold great promise for the reaction at hand. Breakthroughs made by employing the concept of tandem catalysis are also critically analyzed. This review paper also discusses the thermodynamic aspects of the reaction and the insights that have been gained regarding the reaction mechanism. Finally, it provides an overview of the direction that research may move to into the future.
AB - Higher alcohol (HA) synthesis via the hydrogenation of CO2 constitutes a relatively new and exciting field of research that has the potential to help towards the de-carbonization of the energy sector. The process poses formidable challenges, as it demands the formation of at least one C-C bond, when CO2 is thermodynamically stable, fully oxidized and kinetically inert. This work provides a comprehensive and critical literature review of the catalytic formulations that have been employed, in both fixed-bed and batch reactors, which include noble metal catalysts, transition metal-based systems, post-transition metal catalysts, bimetallic, multimetallic/multifunctional catalysts, Metal Organic Frameworks (MOFs), perovskite-, and zeolite-based catalysts. The critical role of promoters and supports and the effect that the reaction conditions have on performance are also discussed. Emphasis has been given to single atom catalysts (SACs), as the high specific activity of these systems seems to hold great promise for the reaction at hand. Breakthroughs made by employing the concept of tandem catalysis are also critically analyzed. This review paper also discusses the thermodynamic aspects of the reaction and the insights that have been gained regarding the reaction mechanism. Finally, it provides an overview of the direction that research may move to into the future.
KW - CO hydrogenation
KW - Heterogeneous catalyst developments
KW - Higher alcohol production
KW - Promoters & supports effect
KW - Reaction mechanism
KW - Thermodynamic analysis
UR - http://www.scopus.com/inward/record.url?scp=85159202147&partnerID=8YFLogxK
U2 - 10.1016/j.cattod.2023.114179
DO - 10.1016/j.cattod.2023.114179
M3 - Article
AN - SCOPUS:85159202147
SN - 0920-5861
VL - 420
JO - Catalysis Today
JF - Catalysis Today
M1 - 114179
ER -