Mesoporous silica SBA-16 thin films were synthesized on a Si substrate via the dip-coating method. SEM analysis revealed that these films possess highly ordered 3D cubic structure. After these films were filled with either pure water or KCl aqueous solutions, the ionic current passing through the mesopores was measured by applying electric field to find out ion transport phenomena. If the ion transport phenomena in mesoporous silica are completely elucidated, this will enhance its use in applications where it is intended to be employed as a catalyst, filter, and adsorbent. The measured I-V curves were non-linear. This document discusses the relationship between the non-linear I-V curves and the ionic flow inside the 3D cubic pore structure. The effect of the dimensions and surface properties of mesopores on the I-V curves are also discussed.
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ASME/JSME 2011 8th Thermal Engineering Joint Conference
March 13–17, 2011
Honolulu, Hawaii, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-3892-1
PROCEEDINGS PAPER
Ion Transport in Mesoporous Silica Thin Films
Hirofumi Daiguji,
Hirofumi Daiguji
The University of Tokyo, Kashiwa, Chiba, Japan
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Daisuke Nakayama,
Daisuke Nakayama
The University of Tokyo, Kashiwa, Chiba, Japan
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Asuka Takahashi,
Asuka Takahashi
The University of Tokyo, Kashiwa, Chiba, Japan
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Sho Kataoka,
Sho Kataoka
National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
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Akira Endo
Akira Endo
National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
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Hirofumi Daiguji
The University of Tokyo, Kashiwa, Chiba, Japan
Daisuke Nakayama
The University of Tokyo, Kashiwa, Chiba, Japan
Asuka Takahashi
The University of Tokyo, Kashiwa, Chiba, Japan
Sho Kataoka
National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
Akira Endo
National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
Paper No:
AJTEC2011-44526, T30093; 4 pages
Published Online:
March 1, 2011
Citation
Daiguji, H, Nakayama, D, Takahashi, A, Kataoka, S, & Endo, A. "Ion Transport in Mesoporous Silica Thin Films." Proceedings of the ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASME/JSME 2011 8th Thermal Engineering Joint Conference. Honolulu, Hawaii, USA. March 13–17, 2011. T30093. ASME. https://doi.org/10.1115/AJTEC2011-44526
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