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    Home > Zhang Zhenjie research group of Nankai University: application of high proton conduction covalent organic framework materials for hydrogen fuel cell

    Zhang Zhenjie research group of Nankai University: application of high proton conduction covalent organic framework materials for hydrogen fuel cell

    • Last Update: 2020-02-04
    • Source: Internet
    • Author: User
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    Hydrogen fuel cell, especially proton exchange membrane (PEM) fuel cell technology, as a clean and reliable energy source, has many advantages, such as mild operating conditions, high energy conversion rate, zero emissions and so on The research on PEMFC is the front and hot spot of international research, and one of its core technologies is PEMFC At present, there are only a few commercialized proton exchange membrane materials, such as Nafion, which have some disadvantages, such as complex synthesis steps, expensive price, narrow working optimum temperature range and so on Therefore, it is of great significance to develop new materials for proton exchange membrane of hydrogen fuel cell Covalent organic framework is a new crystalline porous organic polymer material, which has the advantages of high specific surface area, adjustable pore size, customized structure and function, and is expected to be an ideal proton conducting material Recently, Zhang Zhenjie's special research team of School of chemistry, Nankai University has developed a new idea of step-by-step synthesis and prepared a series of new porous covalent organic framework materials (nkcofs) with high crystallization and stability Through the strategy of "internal and external repair" (pre synthesis and post modification), nkcofs can achieve ultra-high proton conductivity The maximum output power density of 81 MW cm-2 was obtained after the proton exchange membrane was prepared and applied to the hydrogen fuel cell, creating a new record of COFS This work was recently published in angew Chem Int ed (DOI: 10.1002 / anie 201913802) The first author of this paper is Yang Yi, a third-year doctoral student from the school of chemistry, Nankai University, and the corresponding author is Zhang Zhenjie, a specially hired researcher from the school of chemistry, Nankai University Thanks for the support from Nankai University and NSFC.
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