High energy density nickel doped tungsten oxide/reduced graphene oxide nanocomposite designed to advance supercapacitor material. (October 2022)

• Record Type: Journal Article
• Authors: Revathi, P.; Nethaji, P.; Suganya, P.; Krishnasamy, K.
• Is Part Of: Sustainable energy technologies and assessments. Volume 53:Part D(2022)
• Publication Date: 2022-10
• Subjects: 6% Ni:WO3 -- 6% Ni:WO3/rGO -- Nanocube -- Energy density -- Power Density; Renewable energy sources -- Periodicals; Energy development -- Technological innovations -- Periodicals; Electric power production -- Periodicals; Energy storage -- Periodicals; 333.79
• DOI: 10.1016/j.seta.2022.102771
• Languages: English
• ISSNs: 2213-1388

Abstract

Graphical abstract: Highlights: Novel 6% Ni:WO3 /rGO material were synthesized by hydrothermal method. "Nanocube" structure endows 6% Ni:WO3 /rGO with superior electrochemical performance. First time 6% Ni:WO3 /rGO is used as an electrode material for supercapacitor. The 6% Ni:WO3 /rGO nanocomposite material exhibited a high specific capacitance of 1385.8 F/g greater than 6% Ni:WO3 electrode. Abstract: In this strategy, a unique synthesized nanocube using 6 % Nickel doped tungsten oxide/reduced graphene oxide nanocomposite (6 %Ni:WO3 /rGO) is scrutinized for its feasibility as electrode material in supercapacitor material (SCs) application utilizing a simple one-step hydrothermal technique. The structural behavior, binding energies, and quality of the synthesized 6 %Ni:WO3 /rGO nanocomposite were determined by XRD, FTIR, XPS and Raman analysis. The 6 % Ni:WO3 nanocubes in the Ni-doped WO3 nanocomposite were coated across the exterior of the rGO sheet, according to HR-SEM and HR-TEM images. The 6 %Ni:WO3 /rGO (1112.1 at 5 mV/s) nanocomposite revealed enhanced specific capacitance, which was superior to the values of 6 % Ni:WO3 (398.02 at 5 mV/s), and eminent cycling performance possess 95 % retention after a cycle (5, 000) at 1 A/g. The 6 % Ni:WO3 /rGO has a high specific capacitance of 1385.8F/g and more energy density of 140.23 Whkg −1 at a power density of 2243 Wkg −1 at 1 A/g. This novel strategy should open the way for next-generation SCs with major energy storage capacities.