Novel applications of biomass wastes derived biochars: catalysts for hydrogenation reactions

Activated biochars from different biomasses (rice husks, rice grains, hazelnut shells, and leather shaving wastes) have been explored as supports for Pd-based catalysts in hydrogenation reactions. The study found that the textural properties, morphology, and chemical composition of each biochar were influenced by the source biomass, which, in turn, affected the catalytic performance. Among the biochars tested, A-RH (activated rice husk) demonstrated the best catalytic activity due to its unique chemical, physical, structural, and morphological features, facilitating the effective anchoring and dispersion of the metal catalyst.