Analyze and test new progress in the field of metal organic framework materials and other fields

Beijing Institute of Science and Technology Research Institute Analysis and Test Research Institute's advanced materials and in -situ representation laboratory mainly focuses on the design, regulation and synthesis of materials, and scale preparation of the materials. The nuclear growth and performance evaluation of materials have carried out systemic basic research and application exploration. At present, the main research fields of the laboratory are: regulation and synthesis and its catalytic performance of single atoms/nano -catalysts; metal organic framework materials (MOFS) and their derivatives' nuclear growth mechanisms and performance research; Its performance research. Recently, Dr. Liu Xiangwen and his team of advanced materials and in-situ representation laboratory were in the research fields of the original gas phase catalysis of MOFS-AU@mxenes, dual-metal NI-RH nanoparticles, etc. Communication authors, joint authors, etc. in the internationally renowned journal Nano Research (https://doi.org/10.1007/s12274-022-4823-3), Advanced Science (https://doi.org/10.1002/ADVS.20210559999 ), Biosensors and bioelectronics: x (https://doi.org/10.1016/j.biosx.2022.100204).

Figure 1 from the metal single atom to the dual -atomic rational design work flowchart on the graphite carrier

As a new generation of carbon material, graphite 的, because its surface has rich defect sites, has the advantages of natural stable catalytic catalytic, combined with the research hotspot of single atomic catalysis in the current catalytic field, Dr. Liu Xiangwen and his collaborators calculated through theoretical calculations through theoretical calculations Simulation, compared with the catalytic activity of different metals types on the graphite carrier, further discover the catalytic characteristics of the dual -atomic metal sites. Basis.

Figure 2 UIO-66-NH2 light response probe Biomolecular sensing system

Combining the scientific research advantages of the analysis and testing research institute in the analysis and testing institute, Liu Xiangwen's team used the chemical adjustment of the metal organic framework material (MOFS) to modify it on its surface, prepare the UIO-66-NH2 light response probe, and use AU to use AU The base composite material composed of nanoparticles and MXNES successfully constructs a biomarrocytics sensing system and realizes the specific identification of high sensitivity to protein kinase in tumor cells. This method has the characteristics of multi -functional reduction of mxenne and the multi -functional characteristics of gold nanoparticles and biochemical compatibility. It not only provides a feasible photoelectric detection strategy for high -efficiency and simple detection of protein kinase activity, but also for a wider range of biological living body. Power Chemistry Research provides theoretical foundation and technical support.

Figure 3 Original electron microscope Observation of the structural change of NI-RH nanoparticles in the CO catalytic oxidation process

Understanding the constructive relationship between catalyst materials in the catalytic reaction process is of great significance for designing and developing high -efficiency new catalyst materials. Dr. Liu Xiangwen and his collaborators used the dual-metal NI-RH heterogeneous nanoparticles to perform the CO catalytic oxidation experiment, and observed the micro-structured changes in the CO catalytic oxidation process through the real-time electron microscope of the gas phase in the real-time electron microscope, and corresponding to the corresponding The real -time catalytic performance is truly realized in the understanding of the relationship between the catalyst in the actual catalytic reaction process. The results of this study revealed the problem of "black boxes" during the catalysis of scientific researchers, and provided important theoretical basis for future related research and technology that could be learned.

The scientific research work of Liu Xiangwen's team has been strongly supported by the North Academy of Sciences and the Institute of Analysis and Testing. Bar bud plan.

(Liu Xiangwen/Photo)

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