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Organic Matrix Stabilized Ultra‐Fine Bismuth Oxide Particles for Electrochemical Energy Storage Application
Author(s) -
Devi Nishu,
Ghosh Sarit,
Ray Sekhar C,
Mallick Kaushik
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201802838
Subject(s) - supercapacitor , electrolyte , electrochemistry , materials science , aqueous solution , capacitance , raman spectroscopy , x ray photoelectron spectroscopy , nanoparticle , chemical engineering , bismuth , oxide , inorganic chemistry , electrode , chemistry , nanotechnology , physics , metallurgy , engineering , optics
Abstract The synthesis of an organic‐inorganic supramolecular hybrid system has been reported, using a wet‐chemical synthesis method, where the Bi 2 O 3 nanoparticles are dispersed within the organic matrix. The XRD analysis showed the formation of crystalline Bi 2 O 3 . The XPS and Raman spectra analysis also confirmed the formation of Bi 2 O 3 . In this work, the organic molecule supported nanosized Bi 2 O 3 has been used as an electrode material for supercapacitor application in presence of the aqueous solution of alkaline electrolyte (1.0 mol dm −3 of KOH) and exhibited a specific capacitance 407 F.g −1 along with the energy density value of 113 W.h.kg −1 at 1 A.g −1 . The supramolecular system exhibited a long‐term stability by retaining 89% of the initial specific capacitance value after 500 cycles at the current density of 5 A.g −1 .