The oversolubility of methane gas in nano-confined water in nanoporous silica materials
作者: Chih-Cheng LiuHao-Ju ChouChan-Yi LinDamodar JanmanchiPo-Wen ChungChung-Yuan MouSteve S.-F. YuSunney I. Chan
作者单位: 1Institute of Chemistry, Academia Sinica, Nankang, Taipei, 11529, Taiwan
2Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan
刊名: Microporous and Mesoporous Materials, 2020, Vol.293
来源数据库: Elsevier Journal
DOI: 10.1016/j.micromeso.2019.109793
关键词: Nanoporous silica materialsMesoporous silica nanoparticlesMethane sorptionNano-confined waterMethane oversolubility
原始语种摘要: Abstract(#br)The oversolubility of the non-polar methane (CH 4 ) gas in nano-confined liquid in nanoporous silica materials is investigated. A series of mesoporous silica materials with different pore sizes, pore volumes, and different amounts of nano-confined water (H 2 O) are prepared using a pore-expanding reagent and surfactants of different chain-lengths, and the CH 4 absorption by the silica nano-materials is studied at 298 K under low CH 4 gas pressures. Analysis of the CH 4 absorption data reveals unequivocal evidence for oversolubility of CH 4 in the nano-confined H 2 O of all the hydrated nano-materials. The solubility enhancements are several hundred fold relative to the CH 4 solubility in bulk H 2 O. Interestingly, the enhancements are 25–30% higher when a tricopper cluster...
全文获取路径: Elsevier  (合作)
影响因子:3.365 (2012)

  • silica 硅土
  • confined 限于
  • materials 工业三废
  • water 
  • methane 甲烷