炔基化改性聚乙烯醇吸氫材料的制備及吸氫性能表征
[Abstract]:Based on polyvinyl alcohol (PVA) polymer material, acetylene group was introduced into PVA polymer chain by carbamate esterification to form alkynyl functionalized polymer. The molecular structure and graft degree of alkynylated polymers were characterized by NMR. The nano-palladium nanocomposites supported on alkynylated polymer were prepared by chemical reduction method. The particle size distribution of nano-PD was determined by laser particle size analyzer. At the same time, PVA and Pd/C catalysts with different grafted degree were prepared by grinding method. The hydrogen absorption properties of all the materials mentioned above were studied by PVT method. The results showed that the hydrogen-absorbing materials with high grafted degree of PVA modified by carbamate and Pd/C were the best, and the hydrogen absorption capacity was 0.8893 mol/kg..
【作者單位】: 西南科技大學(xué)四川省非金屬?gòu)?fù)合與功能材料重點(diǎn)實(shí)驗(yàn)室-省部共建國(guó)家重點(diǎn)實(shí)驗(yàn)室培育基地;中國(guó)工程物理研究院材料研究所;
【基金】:國(guó)家自然科學(xué)基金資助項(xiàng)目(51573172) 中國(guó)工程物理研究院材料研究所所長(zhǎng)基金(SJZ201506)
【分類號(hào)】:O632.31
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