Hydrothermal synthesis and in situ surface modification of boehmite nanoparticles in supercritical water

T. Mousavand; S. Ohara; M. Umetsu; J. Zhang; S. Takami; T. Naka; T. Adschiri

doi:10.1016/j.supflu.2006.07.021

Hydrothermal synthesis and in situ surface modification of boehmite nanoparticles in supercritical water

T. Mousavand, S. Ohara, M. Umetsu, J. Zhang, S. Takami, T. Naka, T. Adschiri

Tohoku University

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

78 Citations (Scopus)

Abstract

In situ surface modification of boehmite (AlOOH) nanoparticles during hydrothermal synthesis in supercritical water was examined by adding CH₃(CH₂)₄CHO and CH₃(CH₂)₅NH₂ as modifier reagents to the reactants. Changes in surface properties of the nanoparticles by surface modification was observed by FTIR, dispersion in solvents and TEM analyses, which demonstrated that reagents chemically binded onto the surface of the AlOOH nanoparticles. The results of SEM and TEM pictures show that the surface modification affects crystal growth and reduces the particle size and changes the morphology of the particles.

Original language	English
Pages (from-to)	397-401
Number of pages	5
Journal	Journal of Supercritical Fluids
Volume	40
Issue number	3
DOIs	https://doi.org/10.1016/j.supflu.2006.07.021
Publication status	Published - 2007 Apr

Keywords

Boehmite nanoparticles
Hydrothermal synthesis
Supercritical water
Surface modification

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10.1016/j.supflu.2006.07.021

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title = "Hydrothermal synthesis and in situ surface modification of boehmite nanoparticles in supercritical water",

abstract = "In situ surface modification of boehmite (AlOOH) nanoparticles during hydrothermal synthesis in supercritical water was examined by adding CH3(CH2)4CHO and CH3(CH2)5NH2 as modifier reagents to the reactants. Changes in surface properties of the nanoparticles by surface modification was observed by FTIR, dispersion in solvents and TEM analyses, which demonstrated that reagents chemically binded onto the surface of the AlOOH nanoparticles. The results of SEM and TEM pictures show that the surface modification affects crystal growth and reduces the particle size and changes the morphology of the particles.",

keywords = "Boehmite nanoparticles, Hydrothermal synthesis, Supercritical water, Surface modification",

author = "T. Mousavand and S. Ohara and M. Umetsu and J. Zhang and S. Takami and T. Naka and T. Adschiri",

note = "Funding Information: This work was supported by a Scientific Research Grant from the Ministry of Education, Science, Sports, and Culture of Japan (T.A.). This research was also partly supported by the HEIWA NAKAJIMA foundation (T.A.) and by a Grant-in-Aid for the COE project, Giant Molecules and Complex Systems, 2002.",

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doi = "10.1016/j.supflu.2006.07.021",

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AU - Mousavand, T.

AU - Ohara, S.

AU - Umetsu, M.

AU - Zhang, J.

AU - Takami, S.

AU - Naka, T.

AU - Adschiri, T.

N1 - Funding Information: This work was supported by a Scientific Research Grant from the Ministry of Education, Science, Sports, and Culture of Japan (T.A.). This research was also partly supported by the HEIWA NAKAJIMA foundation (T.A.) and by a Grant-in-Aid for the COE project, Giant Molecules and Complex Systems, 2002.

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N2 - In situ surface modification of boehmite (AlOOH) nanoparticles during hydrothermal synthesis in supercritical water was examined by adding CH3(CH2)4CHO and CH3(CH2)5NH2 as modifier reagents to the reactants. Changes in surface properties of the nanoparticles by surface modification was observed by FTIR, dispersion in solvents and TEM analyses, which demonstrated that reagents chemically binded onto the surface of the AlOOH nanoparticles. The results of SEM and TEM pictures show that the surface modification affects crystal growth and reduces the particle size and changes the morphology of the particles.

AB - In situ surface modification of boehmite (AlOOH) nanoparticles during hydrothermal synthesis in supercritical water was examined by adding CH3(CH2)4CHO and CH3(CH2)5NH2 as modifier reagents to the reactants. Changes in surface properties of the nanoparticles by surface modification was observed by FTIR, dispersion in solvents and TEM analyses, which demonstrated that reagents chemically binded onto the surface of the AlOOH nanoparticles. The results of SEM and TEM pictures show that the surface modification affects crystal growth and reduces the particle size and changes the morphology of the particles.

KW - Boehmite nanoparticles

KW - Hydrothermal synthesis

KW - Supercritical water

KW - Surface modification

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Hydrothermal synthesis and in situ surface modification of boehmite nanoparticles in supercritical water

Abstract

Keywords

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