Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 23, Issue 68, Pages 17348-17355Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201703690
Keywords
1T phase; microwave-assisted hydrothermal synthesis; MoS2; nanoflowers; supercapacitors
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Molybdenum disulfide (MoS2) 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 MoS2 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 259Fg(-1) and great cyclic stability after 1000 cycles. The formation mechanism of the MHT-synthesized hybridized 1T/2H MoS2 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.
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