Photocatalytic reactions usually involve the reduction of photogenerated electrons and the oxidation of photogenerated holes. The migration process of photongenerated holes is slower than photogenerated electronics, and the oxidation potential...
Tin sulfide, as a promising anode material for Li-ion batteries, suffers from high-capacity loss during cycling and low initial Coulombic efficiency, which limits its further application. In order to solve these problems, Li + -intercalated SnS 2 with expanded interlayer spacing (0.89 nm) was prepared by the one-step urothermal method. The successful synthesis of Li + -intercalated SnS 2 is confirmed by means of X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, inductively coupled plasma emission spectrometer test, and exfoliation experiment. Compared with pure SnS 2 , the Li + -intercalated SnS 2 electrode displays a higher initial Coulombic efficiency (79.3%) than the pure SnS 2 electrode (55%). Also, Li + -intercalated SnS 2 exhibits more excellent rate performance (548.4 mAh g −1 at 2 A g −1 and 216.6 mAh g −1 at 10 A g −1 ) and cycling performance (647.7 mAh g −1 at 0.1 A g −1 after 100 cycles).
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