Multi-amine-assisted crystal growth of large-sized alpha-MoO3 elongated nano-plates
- Authors
- Moon, Sang Hwa; Im, Sang Hyuk
- Issue Date
- 21-10월-2019
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- NANOSCALE, v.11, no.39, pp.18037 - 18045
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANOSCALE
- Volume
- 11
- Number
- 39
- Start Page
- 18037
- End Page
- 18045
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/62182
- DOI
- 10.1039/c9nr06944e
- ISSN
- 2040-3364
- Abstract
- Large-sized alpha-MoO3 elongated nano-plates were synthesized by the introduction of multi-amines such as ethylene di-amine and diethylene tri-amine (DETA) in the conventional hydrothermal reaction. DETA made large hexagonal rods with an h-MoO3 intermediate phase containing H2O, NH4OH, and DETA ions. During the hydrothermal reaction, the hexagonal rods were transformed to elongated alpha-MoO3 nano-plates by the re-dissolution of h-MoO3 and re-growth to alpha-MoO3 because DETA retarded the preferred growth reaction of the MoO6 octahedra to the [001] direction and helped the MoO6 octahedra to grow in the [100] direction. In addition, DETA promoted alpha-MoO3 nano-belts to be assembled into elongated nano-plates by oriented attachment because the multi-ammonium groups in the DETA backbone could adhere to the alpha-MoO3 nano-belts due to attractive Coulomb interactions.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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