Detailed investigation on properties of novel commercial mesoporous silica materials

František Mikšík, Takahiko Miyazaki, Miki Inada

研究成果: ジャーナルへの寄稿記事

抄録

A detailed investigation on the main characteristics was conducted on a novel and unique group of industrially produced mesoporous silica material. Six materials from a TMPS group were selected in the respect to their pore size ranging from 1.8 nm up to 4.2 nm. Four of the selected samples were also made with silica doping making them potentially attractive for water adsorption applications with the advantage of the pore-tuning possibilities for specific use. The surface area, pore volume and pore size distribution of these materials were established by standard nitrogen adsorption at T = 77.4 K showing typical values of mesoporous silica materials such as high surface area in the range from 600 to 750 m2g−1 and pore volumes reaching 0.38 cm3g−1 in the case of the smallest TMPS-1.5A and 0.98 cm3g−1 in the case of the largest TMPS-4R. The wall thickness was found out regular around 1.5 ~ 2 nm with lower values attributed to bigger pore sized samples promising good structural integrity. Specific heat showed regular values through all the samples at ~ 0.85 J g−1K−1. Additional information on the structural characteristics and the effect on the amount of silanol group presence and the difference on regular and aluminium-doped samples were studied by means of 29Si DD/MAS NMR. Additionally, elemental analysis by EDS was conducted as well. All the characteristics of the TMPS materials were compared to the standard mesoporous silica materials SBA-15 and MCM-41.

元の言語英語
記事番号109644
ジャーナルMicroporous and Mesoporous Materials
289
DOI
出版物ステータス出版済み - 11 15 2019

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Silicon Dioxide
Silica
silicon dioxide
porosity
Pore size
Adsorption
adsorption
Multicarrier modulation
Structural integrity
Aluminum
integrity
Specific heat
Energy dispersive spectroscopy
Nitrogen
Tuning
tuning
Doping (additives)
Nuclear magnetic resonance
specific heat
aluminum

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials

これを引用

Detailed investigation on properties of novel commercial mesoporous silica materials. / Mikšík, František; Miyazaki, Takahiko; Inada, Miki.

:: Microporous and Mesoporous Materials, 巻 289, 109644, 15.11.2019.

研究成果: ジャーナルへの寄稿記事

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