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压电材料对含铂活性炭氢气吸附性能的影响

Keywords: 无机非金属材料,?活性炭,?氢气吸附,?氢溢流作用,压电材料

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Abstract:

?用机械混合法制备含有不同质量分数铂的活性炭,研究了压电材料pmn--pt产生的电荷对含铂活性炭氢气吸附性能的影响。结果表明,在高压氢气条件下pmn--pt产生的电荷能增强铂和活性炭颗粒对氢气分子的吸附,并加速氢气分子的解离和氢原子的扩散,使含铂活性炭的储氢量明显提高。铂产生的氢溢流作用有效地提高了活性炭的氢气吸附量。在室温和8mpa氢气压力条件下pmn--pt使活性炭(nac)氢气吸附量产生的增长幅度为15%,使含有质量分数0.83%、1%和1.25%铂的活性炭氢气吸附量增长的幅度分别为36.5%、39.3%和43.9%。

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