The reporter learned from the China University of Science and Technology that the scientific personnel of the school used the “crystal defect project†to design a “defective nanostructure†and that the results are expected to transform the modernization of the workforce. The research results have recently been published online in the "Journal of the American Chemical Society", an important international chemical journal. In today's organic chemical systems, the vast majority of catalytic reactions are based on the use of precious metal catalysts, and are driven by the combustion of petroleum and coal, and have the disadvantages of high cost and high energy consumption of catalyst materials. Metal oxides have the advantages of low cost and exhibit photocatalytic activity. They are ideal catalytic materials. However, the performance of metal oxides in the oxygen molecule activation system is not satisfactory and cannot effectively capture solar energy. Xiong Yujie's task force designed a class of tungsten oxide nanostructures with precise controlled oxygen vacancy defect states. According to reports, usually metal oxides cannot activate oxygen molecules through chemical adsorption. The construction of oxygen vacancy defects overcomes this drawback and promotes the efficient transfer of photo-generated electrons from the oxide catalyst to oxygen molecules. In addition, the appearance of defect states has greatly broadened the photocatalyst's light absorption range, allowing it to capture solar energy over a wide spectrum of visible and near-infrared light. This achieves effective capture of solar energy and transfer of energy transfer, and solves the bottleneck problem of oxide catalysts in photocatalytic organic synthesis. Xiong Yujie introduced that the use of solar energy to drive the organic synthesis process will be expected to replace traditional thermal catalysis technologies, thereby realizing low-energy chemical production and providing new ideas for mitigating the current energy dilemma. The key to this "defective nanostructure" technology is how to reduce the cost of the catalyst material and increase the energy conversion efficiency. Xiong Yujie said, "This research offers the possibility of using solar energy as a substitute for heat sources to drive organic synthesis, and it also plays an important role in the rational design of photocatalytic materials." (Yang Baoguo Wu Lan) Their design without pendant lines, taken from the Linden technology, makes them easier to assemble and results in major savings, especially on projects that have several cranes working at the same time. Liebherr Tower Crane,Flat-Top Tower Crane,Flat Top Crane,Topkit Tower Crane Jinan Shanghangda Machinery Co., Ltd. , https://www.shdtowercrane.com
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