Polyethylene glycol assisted synthesis of pristine vanadium tetrasulfide nanostructures as high performance electrode material for symmetric supercapacitors

Rajendran，Kumuthini1; Rajendran，Ramachandran2; Anthuvan，Allen Joseph3; Nagamony，Ponpandian4; Therese，Helen Annal5

2022-07-01

10.1016/j.est.2022.104401

Journal of Energy Storage   影响因子和分区

2352-152X

Partonite (VS) - based nanostructures have recently received significant attention in electrochemical energy storage due to the intriguing physico-chemical properties emerging from their unusual crystallographic structure. Besides, the morphology, surface area, porosity, and pore size all play a crucial role in attaining a high-performance energy storage device, particularly in supercapacitors. Herein, the pristine VS nanostructures with various morphologies are synthesized through a simple hydrothermal method with the aid of PEG. The influence of PEG on the morphology, physicochemical properties, and electrochemical performance is discussed. Among all of these, the VS electrode labeled as PEG 55 exhibits a high specific capacitance of 1675 F/g at 0.5 A/g in 1 M NaSO. The electrode delivers a good cycling performance with the capacity retention of 90% up to 5000 cycles. Moreover, the VS symmetric supercapacitor (SSC) device delivers a high energy density of 94 Wh/kg and power density of 400 W/kg with excellent cycling stability (83.5% up to 10,000 cycles). The results demonstrate that the VS nanostructure could be a promising candidate for supercapacitor applications.

Electrochemical performance Hydrothermal Pristine VS4 nanostructures Symmetric supercapacitor

SCI ; EI

英语

其他

Science and Engineering Research Board, India[SERB/F/4176/2015-16]

Energy & Fuels

Energy & Fuels

WOS:000790437100004

ELSEVIER

20221211822798

Electrochemical electrodes ; Energy storage ; Hydrothermal synthesis ; Morphology ; Nanostructures ; Pore size ; Sodium sulfate ; Sulfur compounds ; Vanadium compounds

Energy Storage:525.7 ; Electric Components:704.1 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Inorganic Compounds:804.2 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Solid State Physics:933 ; Materials Science:951

2-s2.0-85126612858

Scopus

1.Nanotechnology Research Centre,SRM Institute of Science and Technology,Kattankulathur,603 203,India
2.SUSTech Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology,Shenzhen,518055,China
3.DRDO-BU CLS,Bharathiar University,Coimbatore,641 046,India
4.Department of Nanoscience and Technology,Bharathiar University,Coimbatore,641 046,India
5.Department of Chemistry,SRM Institute of Science and Technology,Kattankulathur,603 203,India

Rajendran，Kumuthini,Rajendran，Ramachandran,Anthuvan，Allen Joseph,et al. Polyethylene glycol assisted synthesis of pristine vanadium tetrasulfide nanostructures as high performance electrode material for symmetric supercapacitors[J]. Journal of Energy Storage,2022,51.

Rajendran，Kumuthini,Rajendran，Ramachandran,Anthuvan，Allen Joseph,Nagamony，Ponpandian,&Therese，Helen Annal.(2022).Polyethylene glycol assisted synthesis of pristine vanadium tetrasulfide nanostructures as high performance electrode material for symmetric supercapacitors.Journal of Energy Storage,51.

Rajendran，Kumuthini,et al."Polyethylene glycol assisted synthesis of pristine vanadium tetrasulfide nanostructures as high performance electrode material for symmetric supercapacitors".Journal of Energy Storage 51(2022).