The Hefei Research Institute achieved controllable growth and performance control of three-dimensional nanostructures

Figure (AL) Material XRD, SEM and TEM characterization results; (M) dye-sensitized solar cell performance; (N) lithium-ion battery performance.

Recently, the Institute of Solid State Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Center for Environmental and Energy Nanomaterials has made new progress in controlling the growth and performance of three-dimensional nanostructures of Nb3O7 (OH), and has developed a high degree of solution phase and conductive glass substrates. The controllable preparation method of ordered single-crystal Nb3O7 (OH) nanowire array three-dimensional structure materials has good prospects in the application of dye-sensitized solar cells and lithium ion batteries.

The ruthenium-based oxides include a rich composition and structure, such as NbO, NbO2, Nb2O3, Nb2O5, and Nb3O7X (X=OH, F) materials such as nanoparticles, nanorods, and nanoribbons. These material structures have attracted wide attention of researchers in energy storage and conversion applications, but their low specific surface area often results in these material structures exhibiting poorer performance in applications. In response to the above problems, the research group developed a simple hydrothermal growth method to prepare highly ordered single crystal Nb3O7 (OH) nanowire array three-dimensional structure materials (Figure AL). The three-dimensional structure material has a high specific surface area (121.5 m2 g-1) and a micropore/mesopore structure, and can directly grow on a conductive glass substrate to form a membrane structure, and does not require high-temperature annealing, and can be directly used as a photoelectrode. Dye-sensitized solar cells were studied and showed good photoelectric conversion efficiency (Figure M). In addition, after the Nb3O7(OH) three-dimensional structure material is annealed at a high temperature, a high specific surface Nb2O5 material with a better three-dimensional structure (specific surface area of ​​81.8 m2 g-1) can be obtained. As the electrode material, good lithium is exhibited. Ion battery application performance (Figure N). The obtained material has a high specific surface area, a highly ordered array of single crystal nanowires and a porous structure, which is advantageous for improving the adsorption, electron transport, and mass transfer performance of the dye molecules in the application, thus exhibiting in energy applications. Better performance.

Relevant research results were published on the ACS Nano (2016, 10, 507-514) titled Highly Ordered Single Crystalline Nanowire Array Assembled Three-Dimensional Nb3O7 (OH) and Nb2O5 Superstructures for Energy Storage and Conversion Applications. The research was funded by the National Natural Science Foundation of China and the 100-person plan of the Chinese Academy of Sciences.

To know the germicidal efficacy of a binary liquid Chlorine Dioxide Disinfectant(stablilized chlorine dioxide liquid).Method Carrier quantitative germicidal test was used to study its efficacy in killing Escherichia coli with different chlorine dioxide concentration and different contact time.Results The D value of efficacy of the solution containing chlorine dioxide 100 mg/L in killing E.coli was 1.37 min,and the concentration coefficient was 0.6582.The solution containing chlorine dioxide 100 mg/L with a 6 min contact time killed 100% of E.coli on carriers.Conclusion The binary Liquid Chlorine Dioxide disinfectant has good efficacy in killing E.Coli.

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