Cover Picture

The cover picture shows a simple and efficient method to utilize ZrO₂ as a catalytic assistant for the hydrolysis of cellulose to sugar in low acid aqueous system driven by synchronous cooling assisted microwave radiation. Results show the adsorption of ZrO₂ has an obvious influence on the efficiency of the hydrolysis of cellulose to sugar, which is impacted by the surface roughness and particle size. By the use of the ZrO₂ with suitable structure and size, the conversion of treated cellulose and the yield of total reducing sugar respectively reach 95.5% and 93.6%. More details are discussed in the article by Na et al. on page on page 399–405.