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首页> 外文期刊>Journal of porous materials >Influence of vanadium nanoclusters in hydrogen uptake using hybrid nanostructured materials
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Influence of vanadium nanoclusters in hydrogen uptake using hybrid nanostructured materials

机译：杂交纳米结构材料钒纳米能量的影响

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摘要

In this work, we report the synthesis and characterization of vanadium oxide nanoclusters (V2O5) supported in silica nanostructured material (SBA-15) and nanostructured carbon (CMK-3). This material is promising in hydrogen adsorption and storage application for energy harvesting. The materials with vanadium oxide nanoclusters (VxOy-SBA-15 and VxOy-CMK-3) were successfully synthesized and characterized by X-ray diffraction, textural properties, UV-Vis-DRS, X-ray photoelectron spectroscopy, temperature programmed reduction and transmission electron microscopy analyses. VxOy-SBA-15 and VxOy-CMK-3 improved significantly the H-2 storage behavior (1.33wt% and 3.43wt% at 77K and 10bar) compared with their respective supports SBA-15 and CMK-3. The materials synthesized are promising in hydrogen uptake by weak link forces (physisorption). A mechanism of hydrogen adsorption was proposed and V5+ cation roll in hydrogen uptake was discussed.
机译：在这项工作中，我们报告了二氧化硅纳米结构（SBA-15）和纳米结构碳（CMK-3）中负载的钒氧化物纳米团簇（V2O5）的合成和表征。这种材料在氢吸附和储存应用中具有耗能的能量收集。成功地合成氧化钒纳米团簇（Vxoy-SBA-15和VXOY-CMK-3）的材料，其特征在于X射线衍射，纹理性质，UV-Vis-DRS，X射线光电子谱，温度编程和传输电子显微镜分析。与其各自支持SBA-15和CMK-3相比，Vxoy-SBA-15和VXOY-CMK-3和77K和10BAR的1.33wt％和3.43wt％的增长率显着改进。合成的材料是通过弱链路力（物理化）的氢气吸收。提出了氢吸附机理，讨论了氢吸收中的v5 +阳离子辊。

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