期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 89, 期 -, 页码 10-13出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2018.02.010
关键词
Electrochemical exfoliation; Black phosphorus; Phosphorene
资金
- National Natural Science Foundation of China [21373131, 21571110]
- Program for New Century Excellent Talents in University [NCET-12-1035]
- Shanxi Scholarship Council of China [2012-057]
Black phosphorus (BP) has gained great interest due to its tunable band-gap structure which strongly depends on the number of layers. The key step therefore towards application of BP is the preparation of few-layer or multilayer BP materials. However, because of the high chemical reactivity of BP, the preparation process must be handled with special care to avoid oxidation-induced degradation. Here we introduced a facile and scalable electrochemical method to generate BP nanosheets where BP served as the cathode. Subsequently, the product was characterized by TEM, Raman, UV-Vis, AFM, XPS and FTIR techniques. The relevant characterization data indicated that the thickness of the obtained BP nanosheets was mainly in the range of 2-7 nm. Furthermore, oxidation can be completely avoided during this electrochemical cathode exfoliation process, which provided high-quality BP nanosheets.
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