MXenes and MBenes are two-dimensional layered materials that show promise for carbon capture and storage (CCS). MXenes, derived from transition metal carbides and nitrides, offer advantages such as high porosity, CO2 adsorption capacity, and ease of production. MBenes, a family of transition-metal borides, excel in humid environments with higher oxidation resistance and thermal conductivity. Both materials have superior CO2 adsorption performance compared to conventional CCS materials, with MXenes slightly outperforming MBenes in adsorption capacity and selectivity. The article discusses the structural and chemical properties of these materials, their potential applications, and the challenges in their practical deployment. Key factors influencing their performance include layer thickness, selective affinity to CO2, regeneration methods, stability, and cost. MXenes and MBenes are versatile materials that can be tailored for specific applications, such as post-combustion, pre-combustion, and direct air capture of CO2. Despite their promising properties, further research is needed to address challenges in production, scalability, and cost to fully realize their potential in CCS technologies.MXenes and MBenes are two-dimensional layered materials that show promise for carbon capture and storage (CCS). MXenes, derived from transition metal carbides and nitrides, offer advantages such as high porosity, CO2 adsorption capacity, and ease of production. MBenes, a family of transition-metal borides, excel in humid environments with higher oxidation resistance and thermal conductivity. Both materials have superior CO2 adsorption performance compared to conventional CCS materials, with MXenes slightly outperforming MBenes in adsorption capacity and selectivity. The article discusses the structural and chemical properties of these materials, their potential applications, and the challenges in their practical deployment. Key factors influencing their performance include layer thickness, selective affinity to CO2, regeneration methods, stability, and cost. MXenes and MBenes are versatile materials that can be tailored for specific applications, such as post-combustion, pre-combustion, and direct air capture of CO2. Despite their promising properties, further research is needed to address challenges in production, scalability, and cost to fully realize their potential in CCS technologies.