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首页> 外文期刊>Surface & Coatings Technology >Hydrogen uptake efficiency of mesoporous carbon nanofiber and its structural factors to determine the uptake efficiency
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Hydrogen uptake efficiency of mesoporous carbon nanofiber and its structural factors to determine the uptake efficiency

机译：介孔碳纳米纤维的氢吸收效率及其决定吸收效率的结构因素

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In this work, mesoporous carbon nanofibers (MCNF) were synthesized by using a template of mesoporous silicate nanofibers within anodic aluminum oxide (AAO) film and furfuryl alcohol for the carbon source at the carbonization temperatures (600, 900, and 1200 °C). Due to the easy control nature of pore size and thickness of AAO film, the diameter and length of MCNF can easily be controlled. The MCNF pyrolyzed at 1200 °C shows the highest BET surface area. The surface area is discussed with the structural properties associated. Also, hydrogen uptake capacity of MCNF is measured to examine the nanofibers for the potential application as a hydrogen storage media. Among them, MCNF carbonized at 1200 °C shows 0.73 wt.% of the highest hydrogen uptake at 77 K and 0.1. MPa. Results of the study indicate that the capacity of the MCNF for hydrogen storage shall increase as the carbonization temperature increases. The structural property and the surface area of MCNFs depending on carbonization temperature were discussed with their hydrogen uptake efficiency.
机译：在这项工作中，通过在碳化温度（600、900和1200°C）下使用阳极氧化铝（AAO）膜中的介孔硅酸盐纳米纤维和糠醇作为碳源的模板，合成了介孔碳纳米纤维（MCNF）。由于AAO膜的孔径和厚度易于控制，因此可以很容易地控制MCNF的直径和长度。在1200°C下热解的MCNF显示出最高的BET表面积。讨论了表面积以及相关的结构特性。而且，测量MCNF的氢吸收能力以检查纳米纤维作为氢存储介质的潜在应用。其中，在1200°C碳化的MCNF表现出在77 K和0.1时最高吸氢量的0.73 wt。％。 MPa。研究结果表明，随着碳化温度的升高，MCNF的储氢能力将增加。讨论了碳纳米管的结构性质和表面积随碳化温度的变化，以及它们的氢吸收效率。

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