期刊
IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 35, 期 11, 页码 11344-11351出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2020.2989097
关键词
Electrodes; Two dimensional displays; Tin; Supercapacitors; Ions; Morphology; Surface morphology; Chalcogenides; electrochemical analysis; energy storage; nanosheets; SnSe
资金
- Visvesvaraya National Institute of Technology (VNIT), Nagpur
- Consortium For Scientific Research (CSR) Indore, India [CSR-ICMSRSR-19/CRS-227/2017-2018/1308]
- Government of India [DST/TMD/MES/2k16/09, SERB/CRG/2020/000103]
In the class typical layered metal chalcogenide family, tin selenide (SnSe) has been explored resolutely as one of the significant binary IV-VI compounds for a wide range of energy storage applications. Two dimensional hexagonal tin selenide nanosheets have been synthesized using a one-pot colloidal method and tested as active electrode for supercapacitors without using any binder. The as-prepared SnSe electrode exhibits a capacitance of 617.9 F/g at a scan rate of 2 mV/s with a good electrochemical stability due to efficient ion transport between electrolyte to active electrode and charge transport between electrode and current collector. The high energy density of 28.5 Wh/kg along with high cyclic stability is due to the morphology assisted electrochemical activity of the electrode. The results indicate that the assembly of binder-free electrode by the proposed facile synthesis route has a promising application in producing high-performance energy storage devices.
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