ECRs in catalysis often focus on several key areas, including: - Heterogeneous Catalysis: Developing solid catalysts that facilitate chemical reactions without dissolving in the reaction mixture. - Homogeneous Catalysis: Creating catalysts that are in the same phase as the reactants, often leading to more controlled and selective reactions. - Biocatalysis: Using natural catalysts, such as enzymes, to accelerate chemical reactions, often in environmentally friendly ways. - Photocatalysis: Harnessing light energy to drive chemical reactions, with applications in solar energy conversion and environmental remediation.