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Hybridized 1T/2H MoS 2 Having Controlled 1T Concentrations and its use in Supercapacitors
Author(s) -
Thi Xuyen Nguyen,
Ting JyhMing
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201703690
Subject(s) - supercapacitor , molybdenum disulfide , capacitance , materials science , hydrothermal circulation , phase (matter) , electrode , chemical engineering , hydrothermal synthesis , molybdenum , nanotechnology , analytical chemistry (journal) , chemistry , composite material , chromatography , metallurgy , organic chemistry , engineering
Molybdenum disulfide (MoS 2 ) nanoflowers consisting of hybridized 1T/2H phases have been synthesized by using a microwave‐assisted hydrothermal (MTH) method. The concentration of the 1T phase, ranging from 40 % to 73 %, is controlled by simply adjusting the ratio of the Mo and S precursors. By using the hybridized 1T/2H MoS 2 as an electrode material, it was demonstrated that the resulting supercapacitor performance is dominated by the 1T phase concentration. It was found that a supercapacitor with 73 % 1T phase exhibits excellent capacitance of 259 F g −1 and great cyclic stability after 1000 cycles. The formation mechanism of the MHT‐synthesized hybridized 1T/2H MoS 2 is also reported. More importantly, the mechanism also explains the observed relationship between the 1T phase concentration and the ratio of the Mo and S precursors.