Enhanced hydrogenolysis conversion of cellulose to C2-C3 polyols via alkaline pretreatment

► Alkaline treatment causes the cleavage of H-bond and more amorphous part. ► Alkali cellulose has more accessible surface area. ► Some of NaOH molecule and H2O molecule penetrate into the alkali cellulose. ► Hydrogenolysis of cellulose to C2-C3 polyols is enhanced via alkaline pretreatment.