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Reproducible shape control of single-crystal SnO micro particles

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Title: Reproducible shape control of single-crystal SnO micro particles
Authors: Mai Thanh Nguyen Browse this author
Shirai, Hiroaki Browse this author
Tiankanon, Chondanai Browse this author
Tsukamoto, Hiroki Browse this author
Ishida, Yohei Browse this author
Yonezawa, Tetsu Browse this author →KAKEN DB
Keywords: Lithium-ion Batteries
Tin oxide
Facile Synthesis
Hydrothermal Synthesis
Anode Materials
Solution route
Issue Date: 7-Mar-2016
Publisher: Royal Society of Chemistry
Journal Title: RSC advances
Volume: 6
Issue: 32
Start Page: 26725
End Page: 26733
Publisher DOI: 10.1039/c5ra25676c
Abstract: A straightforward method for synthesizing single-crystalline SnO micro particles in an organic medium using tin acetylacetonate as the precursor and oleylamine as the capping ligand is proposed. For the first time, well-defined four-petal starfish-like SnO sheets were obtained in the organic medium. In addition, the shape of the particles could be reproducibly tuned such that their structures varied from cubes to squares and then to starfish-like sheets by simply changing the concentration of oleylamine. The underlying mechanism of this process was found to be closely related to the interaction of the stabilizing agent with the SnO crystal planes. Changing the concentration of the stabilizing agent could modify this interaction, leading to the preferential growth of certain crystal planes of SnO particles which determined the particle shape. This synthesis approach is advantageous in terms of allowing control over the particle shape as well as for its simplicity and short reaction time. Our results yield crucial insights regarding the shape evolution of SnO particles.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 米澤 徹

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