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          The design of "defective" nano meter by USTC is expected to change

          Release date:2016-08-23 11:44:00

           The design of "defective" nano meter by USTC is expected to change the defects of modern chemical industry!
          Release date: August 23, 2016 reading times: 20

              Recently, researchers of University of science and technology of China have designed a kind of "defective nanostructure" by using "crystal defect engineering", which is expected to change modern chemical industry.The research results were published online in the Journal of American Chemical Society.


              In today's organic chemical system, most of the catalytic reactions are based on the use of precious metal catalysts, and are driven by the combustion of petroleum and coal, which has the disadvantages of high cost of catalyst materials and high energy consumption.Metal oxides have the advantages of low cost, and show the catalytic activity of using light energy. They are a kind of ideal catalytic materials.However, the performance of metal oxides in the oxygen molecular activation system is not satisfactory, which can not capture solar energy effectively.

              According to this challenge, Xiong Yujie, professor and doctoral director of China University of science and technology, designed a kind of tungsten oxide nanostructure with precisely controlled oxygen vacancy defects.According to reports, usually metal oxides cannot activate oxygen molecules through chemical adsorption.The construction of oxygen vacancy defect overcomes this defect and promotes the efficient transfer of photogenerated electrons from oxide catalysts to oxygen molecules.In addition, the appearance of defects greatly broadens the absorption range of photocatalyst, making it capture solar energy in the wide spectrum range of visible and near-infrared light.Thus, the effective capture of solar energy and energy transfer are realized, and the bottleneck problem of oxide catalyst in photocatalytic organic synthesis is solved.

          Since 2001, risine Technology Co., Ltd. has established friendly cooperation with China University of science and technology on MXL series experimental box furnace, CVD series vacuum atmosphere tube furnace and other related equipment.