In this study, ordered mesoporous carbons CMK-3 were prepared by a nanocasting method using SBA-15 silica as template and sucrose as carbon source. The pure CMK-3 was modified with nickel by wet impregnation method and the effects on hydrogen storage capacity were studied at different pressures and temperatures. The structural, textural and chemical properties were evaluated in order to investigate their correlation with hydrogen adsorption properties. Also, computational methods (DFT) contributed to the understanding of hydrogen storage interactions in the Ni/C samples.

Two different behaviors on the hydrogen adsorption were obtained after reduction treatment under H₂ atmosphere. For the unreduced samples at 77 K, the textural properties were the determining factor in the H₂ storage capacity. On the other hand, for the reduced samples at room temperatures, the presence of nickel nanoparticles increased the hydrogen adsorption, with a possible dependence of the particle size.

在这项研究中，有序介孔碳CMK-3是通过以SBA-15二氧化硅为模板，蔗糖为碳源的纳米浇铸法制备的。用湿浸渍法对纯CMK-3进行了镍修饰，研究了在不同压力和温度下对CMK-3储氢容量的影响。对结构，质地和化学性质进行了评估，以研究它们与氢吸附性质的相关性。同样，计算方法（DFT）有助于理解Ni / C样品中的氢存储相互作用。

在H ₂气氛下还原处理后，获得了两种不同的氢吸附行为。对于77 K下未还原的样品，织构性质是H ₂储存容量的决定因素。另一方面，对于室温下减少的样品，镍纳米颗粒的存在增加了氢的吸附，并可能与粒径有关。