Ha, Tae-Jung Jung, Sin-Young Bae, Jun-Hyun Lee, Hong-Lim Jang, Ho Won Yoon, Seok-Jin Shin, Sangwoo Cho, Hyung Hee Park, Hyung-Ho 2024-01-20T16:04:38Z 2024-01-20T16:04:38Z 2021-09-05 2011-10 1387-1811 https://pubs.kist.re.kr/handle/201004/129941 Ordered mesoporous oxide films have lower thermal conductivities than their corresponding dense films. In order to apply ordered mesoporous oxide films, which possess excellent properties, in various fields, it is necessary to determine their thermal insulation mechanism. In this study, we synthesized ordered and disordered mesoporous TiO2 films as a function of the drying time. While they had similar porosities, they had different pore structures and thermal conductivities. In order to reveal the relationship between the pore structure and thermal conductivity, a simulation of the heat transfer was performed. The thermal properties, temperature distribution, and heat flux vector of the mesoporous films were simulated by finite element analysis. From the comparison of the experimental and simulated results, the mechanism of thermal insulation in the pore structure could be demonstrated. (C) 2011 Elsevier Inc. All rights reserved. English ELSEVIER SCIENCE BV THIN-FILMS THERMAL-CONDUCTIVITY MOLECULAR-SIEVES PORE STRUCTURE POROSITY TITANIA SILICA WATER Analysis of heat transfer in ordered and disordered mesoporous TiO2 films by finite element analysis Article 10.1016/j.micromeso.2011.04.016 1 MICROPOROUS AND MESOPOROUS MATERIALS, v.144, no.1-3, pp.191 - 194 MICROPOROUS AND MESOPOROUS MATERIALS 144 1-3 191 194 scie scopus 000293435400025 2-s2.0-79960168146 Chemistry, Applied Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Science & Technology - Other Topics Materials Science Article; Proceedings Paper THIN-FILMS THERMAL-CONDUCTIVITY MOLECULAR-SIEVES PORE STRUCTURE POROSITY TITANIA SILICA WATER Mesoporous TiO2 film Pore structure Heat transfer simulation Finite element analysis