Mesoporous silica powders and films-Pore size characterization by krypton adsorption

Chien Yang Chiu; Anthony S.T. Chiang; Kuei Jung Chao

doi:10.1016/j.micromeso.2005.12.003

Mesoporous silica powders and films-Pore size characterization by krypton adsorption

Chien Yang Chiu, Anthony S.T. Chiang, Kuei Jung Chao

化學工程與材料工程學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

21 引文斯高帕斯（Scopus）

摘要

An experimental correlation was established between pore size derived from N₂ adsorption, DN2, and capillary condensation/evaporation pressure, (P/P₀)_t,Kr, obtained from Kr adsorption/desorption isotherms on powdery siliceous MCM-41, MCM-48 and SBA-15 samples, and was analyzed by the DBdB theory. The correlation was then used to estimate the pore size distribution from the Kr adsorption isotherm of mesoporous silica layers on Si(1 0 0) wafer prepared using P123 and Brij^®56 surfactants. It was found by TEM analysis that the pore shape in the thin films was distorted from circular to ellipsoidal, leading to different pore sizes estimated from the adsorption and desorption branches of the Kr isotherm.

原文	???core.languages.en_GB???
頁（從 - 到）	244-253
頁數	10
期刊	Microporous and Mesoporous Materials
卷	91
發行號	1-3
DOIs	https://doi.org/10.1016/j.micromeso.2005.12.003
出版狀態	已出版 - 15 4月 2006

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10.1016/j.micromeso.2005.12.003

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title = "Mesoporous silica powders and films-Pore size characterization by krypton adsorption",

abstract = "An experimental correlation was established between pore size derived from N2 adsorption, DN2, and capillary condensation/evaporation pressure, (P/P0)t,Kr, obtained from Kr adsorption/desorption isotherms on powdery siliceous MCM-41, MCM-48 and SBA-15 samples, and was analyzed by the DBdB theory. The correlation was then used to estimate the pore size distribution from the Kr adsorption isotherm of mesoporous silica layers on Si(1 0 0) wafer prepared using P123 and Brij{\textregistered}56 surfactants. It was found by TEM analysis that the pore shape in the thin films was distorted from circular to ellipsoidal, leading to different pore sizes estimated from the adsorption and desorption branches of the Kr isotherm.",

keywords = "Kr adsorption, Mesoporous silica, Thin film",

author = "Chiu, {Chien Yang} and Chiang, {Anthony S.T.} and Chao, {Kuei Jung}",

note = "Funding Information: The authors are indebted to National Science Council, Taiwan, for financial supports through contract NSC 93-2113-M-007-025, and Ms. Kuo-Ying Huang for sample preparation. ",

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doi = "10.1016/j.micromeso.2005.12.003",

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T1 - Mesoporous silica powders and films-Pore size characterization by krypton adsorption

AU - Chiu, Chien Yang

AU - Chiang, Anthony S.T.

AU - Chao, Kuei Jung

N1 - Funding Information: The authors are indebted to National Science Council, Taiwan, for financial supports through contract NSC 93-2113-M-007-025, and Ms. Kuo-Ying Huang for sample preparation.

PY - 2006/4/15

Y1 - 2006/4/15

N2 - An experimental correlation was established between pore size derived from N2 adsorption, DN2, and capillary condensation/evaporation pressure, (P/P0)t,Kr, obtained from Kr adsorption/desorption isotherms on powdery siliceous MCM-41, MCM-48 and SBA-15 samples, and was analyzed by the DBdB theory. The correlation was then used to estimate the pore size distribution from the Kr adsorption isotherm of mesoporous silica layers on Si(1 0 0) wafer prepared using P123 and Brij®56 surfactants. It was found by TEM analysis that the pore shape in the thin films was distorted from circular to ellipsoidal, leading to different pore sizes estimated from the adsorption and desorption branches of the Kr isotherm.

AB - An experimental correlation was established between pore size derived from N2 adsorption, DN2, and capillary condensation/evaporation pressure, (P/P0)t,Kr, obtained from Kr adsorption/desorption isotherms on powdery siliceous MCM-41, MCM-48 and SBA-15 samples, and was analyzed by the DBdB theory. The correlation was then used to estimate the pore size distribution from the Kr adsorption isotherm of mesoporous silica layers on Si(1 0 0) wafer prepared using P123 and Brij®56 surfactants. It was found by TEM analysis that the pore shape in the thin films was distorted from circular to ellipsoidal, leading to different pore sizes estimated from the adsorption and desorption branches of the Kr isotherm.

KW - Kr adsorption

KW - Mesoporous silica

KW - Thin film

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U2 - 10.1016/j.micromeso.2005.12.003

DO - 10.1016/j.micromeso.2005.12.003

M3 - 期刊論文

AN - SCOPUS:33645076532

SN - 1387-1811

VL - 91

SP - 244

EP - 253

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

IS - 1-3

ER -

Mesoporous silica powders and films-Pore size characterization by krypton adsorption

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