Surface modified graphene materials as improved catalysts for methanol to formaldehyde conversion

The catalytic conversion of methanol to formaldehyde represents a promising solution to mitigate greenhouse gas emissions and provide a sustainable chemical feedstock. This study investigates the catalytic performance of chromium (Cr) embedded in graphene for the direct conversion of methanol to formaldehyde. Utilizing density functional theory (DFT) calculations, the electronic structure, adsorption energies, and reaction pathways of Cr-doped graphene were analysed. The findings highlight the stability and enhanced catalytic activity of this metal-doped graphene system, particularly in the formation of formaldehyde under mild conditions. Cr atoms, incorporated into the graphene lattice exhibit significant interactions with methanol, facilitating its activation and conversion. The study further explores the role of nitrogen doping, creating CrN4-graphene catalysts that demonstrate improved catalytic performance through enhanced electronic properties and stability. The results contribute to the understanding of catalytic mechanisms in methanol conversion and suggest pathways for optimizing catalyst design for industrial applications.