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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Hydrogen storage properties of Pd-doped thermally oxidized single wall carbon nanohorns
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Hydrogen storage properties of Pd-doped thermally oxidized single wall carbon nanohorns

机译：掺钯热氧化单壁碳纳米角的储氢性能

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摘要

Single wall carbon nanohorns as well as their thermally oxidized derivatives were decorated with Pd nanoparticles and their H-2 sorption performance was examined at 298 K up to 20 bar. The specific surface area of the nanohorns was increased through air oxidation, while both the thermal treatment and the metal doping led to the enhancement of the H-2 uptake. The higher uptake of the hybrid materials could not be attributed only to the additive effect of the carbon support and Pd content suggesting the existence of a cooperative mechanism between the metal particles and the carbon surface. This weak chemisorption process was found to be fully reversible after mild heating; still, its contribution to the overall H-2 uptake was not found to be of great significance. (C) 2014 Elsevier B.V. All rights reserved.
机译：单壁碳纳米角及其热氧化衍生物用Pd纳米粒子修饰，并在298 K至20 bar的压力下检测了其H-2吸附性能。纳米角的比表面积通过空气氧化而增加，而热处理和金属掺杂均导致H-2吸收的增加。杂化材料的较高吸收不能仅归因于碳载体和Pd含量的累加效应，表明金属颗粒与碳表面之间存在协同作用机理。发现这种弱的化学吸附过程在温和加热后是完全可逆的。仍未发现其对总体H-2吸收的贡献具有重大意义。 （C）2014 Elsevier B.V.保留所有权利。

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