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首页> 外文期刊>Nanotechnology >High surface area microporous carbon materials for cryogenic hydrogen storage synthesized using new template-based and activation-based approaches
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High surface area microporous carbon materials for cryogenic hydrogen storage synthesized using new template-based and activation-based approaches

机译：使用基于模板和基于激活的新方法合成的用于低温氢存储的高表面积微孔碳材料

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High surface area microporous carbon materials were synthesized using new, simple, and innovative approaches based on traditional template and chemical activation methods. The resulting surface area and porosity were characterized using Brunauer-Emmett-Teller (BET)-type measurements and analysis, and the hydrogen storage capacity was determined using excess hydrogen adsorption measurements at 77 K and up to 40 bar hydrogen pressure. For our direct one-step aerosol-assisted template-based synthesis method of mixing the template precursor and carbon precursor solutions, a specific surface area value of up to nearly 2000 m~2 g~(-1) and an excess hydrogen storage capacity of 4.2 wt% was observed. For our chemical activation-based synthesis method of homogeneously mixing the chemical activation reagent into the carbon precursor solution, a specific surface area value of nearly 3000 m~2 g~(-1) and an excess hydrogen adsorption capacity of nearly 5.8 wt% were observed. The surface area and hydrogen uptake results varied systematically with the synthesis parameters, and we observed a strong correlation between the BET values of the specific surface area and the excess hydrogen adsorption capacity.
机译：基于传统模板和化学活化方法，使用新颖，简单和创新的方法合成了高表面积微孔碳材料。使用Brunauer-Emmett-Teller（BET）型测量和分析来表征所得的表面积和孔隙率，并使用过量的氢吸附测量值（在77 K和最高40 bar的氢气压力下）确定储氢量。对于我们将模板前体和碳前体溶液混合的直接一步法气溶胶辅助模板合成方法，比表面积值高达近2000 m〜2 g〜（-1），多余的储氢量为观察到4.2重量％。对于将化学活化剂均匀混合到碳前体溶液中的基于化学活化的合成方法，比表面积值接近3000 m〜2 g〜（-1），多余的氢吸附能力接近5.8 wt％。观测到的。表面积和氢吸收结果随合成参数而系统地变化，并且我们观察到比表面积的BET值与过量的氢吸附能力之间存在很强的相关性。

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