Hydrogen adsorption on porous silica
作者： D SHEPPARD , C BUCKLEY
DOI: 10.1016/J.IJHYDENE.2007.12.021
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摘要: Abstract A number of MCM-41 samples were produced with different ageing times and zinc dopant levels. Hydrogen adsorption experiments performed at 77 K on pure showed a maximum excess wt% uptake 2.01%. Samples doped Zn in the Si:Zn ratio 50:1, 25:1 10:1. These an increase d -spacing their XRD patterns, suggestive incorporation into structure but resulting decrease long range pore ordering surface area increasing content. Two three H 2 adsorbed per unit increased interaction strength. However, definitive confirmation is difficult due to degradation area. Adsorption room temperature was minimal, being 0.1 wt% or below.
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