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Waste‐Derived Heteroatom‐Doped Activated Carbon/Manganese Dioxide Trio‐Composite for Supercapacitor Applications
Author(s) -
Wadekar Pravin H.,
Khose Rahul V.,
Pethsangave Dattatray A.,
Some Surajit
Publication year - 2020
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201901402
Subject(s) - supercapacitor , heteroatom , materials science , surface modification , manganese , energy storage , nanomaterials , chemical engineering , carbon fibers , oxide , capacitance , nanotechnology , composite number , chemistry , organic chemistry , composite material , metallurgy , electrode , ring (chemistry) , power (physics) , physics , quantum mechanics , engineering
The utilization of biological‐waste materials to synthesize heteroatom‐doped activated carbon (AC), followed by metal oxide functionalization for high‐performance supercapacitors is described. Herein, easily available and cheap biowaste, i.e., cow dung (CD), and low priced‐nontoxic waste melamine sponge (MS) are consumed to produce nitrogen‐doped AC followed by functionalization with economically inexpensive manganese dioxide (MnO 2 ), that is utilized to provide an efficient energy‐storage material. The use of CD, MS, and MnO 2 materials furnishes the process with sustainability, cost‐effectiveness, and safe components for the doping of heteroatoms and metal oxide on the carbon framework for energy‐storage applications. The subsequent material exhibits maximum specific capacitance, i.e., 424 F g −1 , at a current density of 1 A g −1 , which relates to maximum power as well as the energy density of 1817 W kg −1 and 47.7 Wh kg −1 , respectively. The resultant material shows high‐performance specific capacitance and excellent cyclic stability for supercapacitor applications. This modest process of the direct production of N‐doped AC followed by MnO 2 functionalization is a simple, economical, large production of a nanomaterial prototype for different applications including supercapacitor applications.