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One‐Pot Hydrothermal Synthesis of Ternary 1T‐MoS 2 /Hexa‐WO 3 /Graphene Composites for High‐Performance Supercapacitors
Author(s) -
Naz Raheela,
Liu Qinglei,
Abbas Waseem,
Imtiaz Muhammad,
Zada Imran,
Ahmad Javed,
Li Tengfei,
Gu Jiajun
Publication year - 2019
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.201903336
Subject(s) - supercapacitor , materials science , ternary operation , graphene , tungsten trioxide , composite number , capacitance , hydrothermal circulation , hydrothermal synthesis , electrochemistry , oxide , molybdenum trioxide , electrolyte , chemical engineering , molybdenum disulfide , tungstate , composite material , electrode , nanotechnology , tungsten , molybdenum , metallurgy , chemistry , computer science , engineering , programming language
A new ternary composite of 1T‐molybdenum disulfide, hexagonal tungsten trioxide, and reduced graphene oxide (M‐W‐rGO) is synthesized by using a one‐pot hydrothermal process. The synergetic effect of 1T‐MoS 2 and hexa‐WO 3 nanoflowers improves the electrochemical performance for supercapacitors by inducing additional active sites and hexagonal tunnels, respectively, which lead to high storage capacity and easy transfer of electrolyte ions. The ternary M‐W‐rGO composite has a high specific capacitance of 836 F g −1 at 1 A g −1 , which is nearly twice that of binary composites of M‐rGO and W‐rGO with high capacitance retention of 86.35 % after 3000 cycles at a high current density of 5 A g −1 . This study provides a new ternary composite that can be used as an electrode material for high‐performance supercapacitors.