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    Home > Chemicals Industry > China Chemical > "Top Ten Scientific and Technological Advances in Chinese Higher Education Institutions" Announced!

    "Top Ten Scientific and Technological Advances in Chinese Higher Education Institutions" Announced!

    • Last Update: 2023-02-26
    • Source: Internet
    • Author: User
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    Recently, the results of the 2021 "Top Ten Scientific and Technological Advances in Chinese Higher Education Institutions" organized by the Science and Technology Committee of the Ministry of Education were announced
    .
    The "Key Technologies and Applications of Efficient Screening of Difficult-to-Screen Minerals" completed by the team of Professor Zhao Yuemin of China University of Mining and Technology, and the "Research on Efficient and Stable Perovskite Photovoltaic Devices" completed by the team of Academician Huang Wei and Professor Chen Yonghua of Nanjing University of Technology were successfully selected
    .

    Mineral resources are the material basis for human survival and an important guarantee for China's national security and economic development
    .
    The clean, efficient and low-carbon utilization of mineral resources is a major national strategic demand, and efficient screening of difficult-to-screen minerals is a key technology in the field of mineral processing engineering
    .

    With the support of the National Natural Science Foundation of China's innovative research group projects and key projects, Professor Zhao Yuemin's team has adhered to the independent innovation of industry-university-research cooperation, established the screening theory of sieve body-particle group coupling action, and invented the distributed excitation screening technology and rigid-flexible screening technology.
    Coupled with elastic screening technology, high-efficiency screening equipment for difficult-to-screen minerals has been developed, and 3mm depth screening and heavy-medium separation processes for sticky wet steam coal are proposed, which solves the technical problem of large-scale fine-grain screening of difficult-to-screen minerals.
    It has realized the innovation from theory, experiment, equipment, process technology to industrialization, reaching the international leading level, widely used in mining, metallurgy, electric power, chemical industry, building materials, environmental protection industries, and exported to countries along the Belt and Road, and won the only Ministry of Education in 2020.
    Special Prize for Scientific and Technological Progress
    .

    The increasingly prominent problem of climate change has prompted the world to accelerate the in-depth development of low carbonization, and renewable energy represented by "photovoltaic" has gradually become the main force of the "dual carbon" strategy
    .
    Traditional silicon-based and inorganic thin-film photovoltaics have high efficiency and stability, but are expensive
    .
    Due to its outstanding advantages such as excellent performance and low cost, perovskite photovoltaic is one of the important directions of the current development of photovoltaic field.
    breakthrough
    .
    However, the poor stability of perovskite photovoltaics limits its rapid development
    .

    In response to this key scientific and technological problem, the team of Academician Huang Wei and Professor Chen Yonghua from Nanjing University of Technology has conducted in-depth and systematic research on the stability of perovskite photovoltaic cells with ionic liquids as the main line, and has achieved a series of important research progress
    .
    A new method for the preparation of perovskite thin films by replacing traditional polar aprotic solvents with protic ionic liquid solvents was proposed, and the preparation of high-quality perovskite thin films in air was achieved; a new strategy for chemical regulation of ionic liquid precursor solutions was explored to stabilize the two 3D layered perovskite framework, prepared phase-pure 2D layered perovskite thin films, and achieved a breakthrough in the stability of 2D layered perovskite; developed a new reaction method for ionic liquids to construct "ion channels", reducing The reaction barrier was eliminated, and stable formamidine-based perovskite thin films were formed at room temperature and high humidity, resulting in efficient and stable perovskite photovoltaic cells
    .
    This series of breakthrough achievements will help to promote the process of industrialization of perovskite photovoltaic cells, which is of great significance in the aspects of independent controllable, efficient utilization and sustainable development of clean energy
    .

    It is reported that in order to give full play to the role of colleges and universities as the main force of basic research and the source of major scientific and technological breakthroughs, timely publicize the major scientific and technological achievements of colleges and universities, and focus on demonstrating the scientific and technological innovation strength of colleges and universities, the Science and Technology Committee of the Ministry of Education has launched the "China Higher Education Institution" since 1998.
    The selection work of "Top Ten Scientific and Technological Progress of the University" is selected once a year
    .

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