In situ high-resolution transmission electron microscopy of photocatalytic reactions by excited electrons in ionic liquid

Kenta Yoshida; Tsutomu Nozaki; Tsukasa Hirayama; Nobuo Tanaka

doi:10.1093/jmicro/dfm021

In situ high-resolution transmission electron microscopy of photocatalytic reactions by excited electrons in ionic liquid

Kenta Yoshida, Tsutomu Nozaki, Tsukasa Hirayama, Nobuo Tanaka

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

A transmission electron microscope (TEM) sample for observing photocatalysis in a liquid was prepared by using N,N,N-trimetyl-N- propylammonium-bis(trifluoromethanesulfonyl)imide. The ionic liquid (IL) was used as a reaction solvent. Tetrachloroauric acid was dissolved in the IL as gold ion species. Rutile particles were added in the solution as a photocatalyst. The low vapor pressure of the IL enables a diffusing system in high vacuum of TEM. Rutile particles were UV irradiated in that liquid phase. After 3 h UV irradiation, a gold particle of 8 nm diameter was grown on the TiO₂ surface. Photonucleation of Au/TiO₂ system was discussed from the high-resolution TEM images.

Original language	English
Pages (from-to)	177-180
Number of pages	4
Journal	Journal of Electron Microscopy
Volume	56
Issue number	5
DOIs	https://doi.org/10.1093/jmicro/dfm021
Publication status	Published - 2007 Oct 1
Externally published	Yes

Keywords

In-situ
Ionic liquid
Photocatalyst
TEM

ASJC Scopus subject areas

Instrumentation

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10.1093/jmicro/dfm021

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abstract = "A transmission electron microscope (TEM) sample for observing photocatalysis in a liquid was prepared by using N,N,N-trimetyl-N- propylammonium-bis(trifluoromethanesulfonyl)imide. The ionic liquid (IL) was used as a reaction solvent. Tetrachloroauric acid was dissolved in the IL as gold ion species. Rutile particles were added in the solution as a photocatalyst. The low vapor pressure of the IL enables a diffusing system in high vacuum of TEM. Rutile particles were UV irradiated in that liquid phase. After 3 h UV irradiation, a gold particle of 8 nm diameter was grown on the TiO2 surface. Photonucleation of Au/TiO2 system was discussed from the high-resolution TEM images.",

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T1 - In situ high-resolution transmission electron microscopy of photocatalytic reactions by excited electrons in ionic liquid

AU - Yoshida, Kenta

AU - Nozaki, Tsutomu

AU - Hirayama, Tsukasa

AU - Tanaka, Nobuo

PY - 2007/10/1

Y1 - 2007/10/1

N2 - A transmission electron microscope (TEM) sample for observing photocatalysis in a liquid was prepared by using N,N,N-trimetyl-N- propylammonium-bis(trifluoromethanesulfonyl)imide. The ionic liquid (IL) was used as a reaction solvent. Tetrachloroauric acid was dissolved in the IL as gold ion species. Rutile particles were added in the solution as a photocatalyst. The low vapor pressure of the IL enables a diffusing system in high vacuum of TEM. Rutile particles were UV irradiated in that liquid phase. After 3 h UV irradiation, a gold particle of 8 nm diameter was grown on the TiO2 surface. Photonucleation of Au/TiO2 system was discussed from the high-resolution TEM images.

AB - A transmission electron microscope (TEM) sample for observing photocatalysis in a liquid was prepared by using N,N,N-trimetyl-N- propylammonium-bis(trifluoromethanesulfonyl)imide. The ionic liquid (IL) was used as a reaction solvent. Tetrachloroauric acid was dissolved in the IL as gold ion species. Rutile particles were added in the solution as a photocatalyst. The low vapor pressure of the IL enables a diffusing system in high vacuum of TEM. Rutile particles were UV irradiated in that liquid phase. After 3 h UV irradiation, a gold particle of 8 nm diameter was grown on the TiO2 surface. Photonucleation of Au/TiO2 system was discussed from the high-resolution TEM images.

KW - In-situ

KW - Ionic liquid

KW - Photocatalyst

KW - TEM

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JO - Microscopy (Oxford, England)

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SN - 2050-5698

IS - 5

ER -

In situ high-resolution transmission electron microscopy of photocatalytic reactions by excited electrons in ionic liquid

Abstract

Keywords

ASJC Scopus subject areas

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