Microcrystalline Cellulose and Cellulose Nanocrystals: Ecofriendly and Sustainable Support Materials in Heterogeneous Nanocatalysis for Green Organic Transformations

Abstract The utilization of microcrystalline cellulose (MCC) and cellulose nanocrystals (CNC) as supports for nanocatalysts has garnered considerable interest in recent research due to their unique properties and several advantages. In this regard, we present a review of the use of MCC or CNC‐based nanocatalysts and their catalytic performance in organic reactions under milder and sustainable reaction conditions. The inherent advantages of MCC, such as its abundance, biocompatibility, and versatile surface, make it more attractive support material for nanocatalysts. Similarly, CNCs, with their high surface area, tunable surface chemistry, and sustainable nature, offer promising prospects for enhancing catalytic processes. The synergy between the cellulose‐based material and nanoparticles exhibits several novel properties. This review highlights the key features, advantages, and catalytic applications of MCC as well as CNC‐supported nanocatalysts, emphasizing their role in promoting more sustainable and efficient organic transformations.