Effects of Inherent/Enhanced Solid Acidity and Morphology of Diatomite Templates on the Synthesis and Porosity of Hierarchically Porous Carbon
Effects of Inherent/Enhanced Solid Acidity and Morphology of Diatomite Templates on the Synthesis and Porosity of Hierarchically Porous Carbon
复制标题
硅藻土模板的固有/增强固体酸度和形貌对分级多孔碳的合成和孔隙率的影响
DOI：
10.1021/la103980s
复制
发表时间：
2010-12-21
期刊：
影响因子：
3.9
通讯作者：
He, Hongping
中科院分区：
文献类型：
--
作者：
Liu, Dong;Yuan, Peng;He, Hongping
研究发现，天然或活化沸石的固有或增强的固体酸性对合成具有高比表面积和特殊孔结构的多级孔沸石模板炭有显著影响。固体酸性使原料/活化的氧化铝成为生成多孔碳的催化剂，并且碳产物的孔参数强烈依赖于氧化铝模板的固体酸性。多孔炭的形貌也显著影响多孔炭的织构结构。碳产物中的两种类型的大孔结构，部分实心柱和有序中空管，分别来自硅藻壳的中心和边缘孔的复制。多级孔炭对溶剂油和H2具有良好的吸附性能，在吸附和储气方面具有潜在的应用前景。
The inherent or enhanced solid acidity of raw or activated diatomite is found to have significant effects on the synthesis of hierarchically porous diatomite-templated carbon with high surface area and special porous structure. The solid acidity makes raw/activated diatomite a catalyst for the generation of porous carbon, and the porous parameters of the carbon products are strongly dependent on the solid acidity of diatomite templates. The morphology of diatomite also dramatically affects the textural structure of porous carbon. Two types of macroporous structures in the carbon product, the partially solid pillars and the ordered hollow tubes, derive from the replication of the central and the edge pores of diatom shell, respectively. The hierarchically porous carbon shows good capability for the adsorption of solvent naphtha and H-2, enabling potential applications in adsorption and gas storage.