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Zhejiang University Tackles the Problem of Homogeneous Distribution of Heterogeneous Catalyst

2013-01-25

中国炼油与石油化工 2013年3期

Zhejiang University Tackles the Problem of Homogeneous Distribution of Heterogeneous Catalyst

Zhejiang University’s New Hecheng R&D Center via the hydrothermal method for carbonization of glucose serving as the carbon source has manufactured a premium high-efficiency catalyst supported on nitrogen-containing nanoscale microspheres to realize in a definite degree the homogeneous distribution of heterogeneous catalyst to greatly speed up the reaction rate.

Recently the functionalization of carbon materials has blasted a new idea for designing heterogeneous catalysts. The hydrothermal method is a novel method for manufacture of porous carbon-based materials. Preparation of the topologically adjustable nanoscale microspheres with particle size less than 100 nm is a tough issue for hydrothermal method aiming at preparation of carbonbased materials. Mr. Wang Yong and other staffs of New Hecheng R&D Center by combining the polyionic liquid serving as the structure adjusting agent with the hydrothermal method have prepared carbon microspheres with a particle size of around 50 nm to successfully grapple with the problem for preparing microspherical nanoscale carbon material (≤100 nm). Afterwards they have tried to use the nitrogen-containing nano-carbon microspheres as the support for the nano-palladium particles that can function as the high-efficiency catalyst to achieve the high-efficiency catalytic oxidation of C—H and O—H bonds under mild condition in the presence of air serving as the cheap oxidant.