1. Toward edges-rich MoS2 layers via chemical liquid exfoliation triggering distinctive magnetism
- Author
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Duyang Gao, Chi Chen, Xiaobin Xie, Lintao Cai, Guanhui Gao, Achim Trampert, Guichi Zhu, Shendong Kang, and Yantao Su
- Subjects
Materials science ,Magnetism ,Physics::Instrumentation and Detectors ,Nanotechnology ,02 engineering and technology ,010402 general chemistry ,01 natural sciences ,Condensed Matter::Materials Science ,chemistry.chemical_compound ,magnetic property ,lcsh:TA401-492 ,General Materials Science ,Molybdenum disulfide ,Edges-rich MoS2 ,grain boundaries ,exfoliation ,021001 nanoscience & nanotechnology ,Exfoliation joint ,0104 chemical sciences ,Computer Science::Other ,chemistry ,Ferromagnetism ,Chemical physics ,Transmission electron microscopy ,Diamagnetism ,lcsh:Materials of engineering and construction. Mechanics of materials ,Grain boundary ,Magnetic force microscope ,0210 nano-technology - Abstract
The magnetic function of layered molybdenum disulfide (MoS2) has been investigated via simulation, but few reliable experimental results have been explored. Herein, we developed edges-rich structural MoS2 nanosheets via liquid phase exfoliation approach, triggering exceptional ferromagnetism. The magnetic measurements revealed the clear ferromagnetic property of layered MoS2, compared to the pristine MoS2 in bulk exhibiting diamagnetism. The existence of ferromagnetism mostly was attributed to the presence of grain boundaries with abundant irregular edges confirmed by the transmission electron microscopy, magnetic force microscopy and X-ray photoelectron spectroscopy, which experimentally provided reliable evidences on irregular edges-rich states engineering ferromagnetism to clarify theoretical calculation. IMPACT STATEMENT • Edges-rich MoS2 layers are achieved via chemical liquid approach. • The abundant edges MoS2 nanosheets demonstrate highly superior magnetic property, which provides reliable evidences to identify irregular edge states engineering ferromagnetism experimentally.
- Published
- 2016
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