Noble Metals in Recent Developments of Heterogeneous Catalysts for CO₂ Conversion Processes

Author(s)

Vieira, Luiz H. H. ; Rasteiro, Leticia F. ; Santana, Cassia S. ; Catuzo, Gabriel L. L. ; da Silva, Alisson H. M. ; Assaf, Jose M. ; Assaf, Elisabete M. M.

• Document type: Journal article
• Source: CHEMCATCHEM; v. N/A, p. 35-pg., 2023-07-04.

Abstract

Following the advances in capture technologies, CO2 utilization associated with low-cost renewable H-2 in catalytic hydrogenation is a promising strategy for reducing the carbon footprint of industrial processes by providing valuable chemicals and fuels. However, the scalability and economic viability of these processes will depend on the development of efficient catalysts. Noble metal-based catalysts have been extensively reported in the last few years as highly effective in promoting CO2 hydrogenation to various products. Although promising, the scarcity, high cost, and environmental impact of mining make it challenging to scale up these materials from bench to plant. Developing advanced synthesis and characterization methods is essential to control and understand active sites' behavior during the reaction, providing high activity and durability. This review carefully summarizes the recently reported noble metal-based heterogeneous catalysts for thermocatalytic conversion of CO2 into methane, carbon monoxide, methanol, formic acid, higher alcohols, C2+ hydrocarbons, and syngas through dry reforming of CH4, to draw the state-of-the-art development in the field. Finally, we critically discuss the impact of these elements on catalyst properties, the challenges related to their implementation, and future research opportunities. (AU)

• FAPESP's process: 14/50279-4 - Brasil Research Centre for Gas Innovation
• Grantee: Julio Romano Meneghini
• Support Opportunities: Research Grants - Research Centers in Engineering Program
• FAPESP's process: 17/22671-5 - Ga-Ni nanoparticles supported on porous silica for methanol synthesis from CO2 at low pressures
• Grantee: Letícia Fernanda Rasteiro
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 20/15230-5 - Research Centre for Greenhouse Gas Innovation - RCG2I
• Grantee: Julio Romano Meneghini
• Support Opportunities: Research Grants - Research Centers in Engineering Program
• FAPESP's process: 17/05241-7 - Synthesis of C2+OH alcohols from CO2 hydrogenation in polyfunctional catalysts based on Cu, Rh and Fe
• Grantee: Cássia Sidney Santana
• Support Opportunities: Scholarships in Brazil - Doctorate