Hyper-cross-linked polymers based on triphenylsilane for hydrogen storage and water treatment |
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| Authors: | Zhizhou Yang Shuqing Fu Cheng Yan Jinshui Yao Weiliang Liu |
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| Institution: | 1. School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People’s Republic of Chinayzz@qlu.edu.cn yaojsh@qlu.edu.cn;2. School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People’s Republic of China |
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| Abstract: | The present research focuses on the synthesis and applications of a series of hyper-cross-linked polymer networks obtained from the one-step Friedel–Crafts reaction of triphenylsilane and formaldehyde dimethyl acetal. The materials were characterized through FTIR, 13C NMR, PXRD, TGA, N2 adsorption-desorption isotherms, H2 sorption and dye adsorption. These materials exhibited increased surface areas of approximately 441–1101 m2 g?1 with increasing ratio of monomer to cross-linker. The H2 storage capacity of the polymer networks reached 1.19 wt % (5.96 mmol g?1) under 1.03 bar and 77.3 K. In addition, the material showed excellent adsorption capacity of 806 mg g?1 for Congo Red and retained their adsorption capacity after recycling nine times. Taken together, the results demonstrate that the obtained hyper-cross-linked polymers could be applied to H2 storage and water treatment. |
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| Keywords: | Hyper-cross-linked polymer H2 storage Friedel–Crafts reaction triphenylsilane water treatment |
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