Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 58, Issue 29, Pages 9891-9896Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201900802
Keywords
antimonene; dodecylthiol; nanosheets; two-dimensional materials
Categories
Funding
- National Key R&D Program of China [2018YFC0910602]
- National Natural Science Foundation of China [61775145, 61525503, 61620106016, 61835009, 81727804]
- (Key) Project of Department of Education of Guangdong Province [2015KGJHZ002/2016KCXTD007]
- Guangdong Natural Science Foundation Innovation Team [2014A030312008]
- Shenzhen Basic Research Project [JCYJ20170412110212234, JCYJ20160328144746940, JCYJ201704 12105003520]
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Antimonene, an emerging two- dimensional material, has garnered tremendous interest due to its intriguing structure and fascinating electronic properties. However, the synthesis of high- quality few- layer antimonene nanosheets, which can only be produced by exfoliation or epitaxial growth on exotic substrates, has greatly hindered the development of this new field. Herein, few- layer hexagonal and functionalized antimonene nanosheets were successfully prepared from SbCl3 solutions for the first time by exclusively promoting their anisotropic growth in a colloidal solution. Oleylamine was selected as the reducing agent, rather than oleic acid, and dodecylthiol was key to preventing the formation of antimony oxide. Additionally, halide ions adsorbed on the surface also influenced the anisotropic growth of hexagonal antimonene nanosheets. Atomic force microscopy ( AFM) revealed that the sheets were & 5 nm thick; Raman spectroscopy and X- ray diffraction ( XRD) revealed a rhombohedral atomic structure ( b- Sb) with excellent stability.
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