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Hydrothermal Carbonization of Walnut Shell Biomass to Biochar for Supercapacitor Application

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Title Hydrothermal Carbonization of Walnut Shell Biomass to Biochar for Supercapacitor Application
 
Creator Devi, Raman
Kumar, Vinay
Kumar, Sunil
Bulla, Mamta
Singh, Paul
 
Subject Hydrothermal carbonization
Biochar
BET surface area
Supercapacitor
Waste management
 
Description 692-696
Hydrothermal carbonization is now emerging to address society's global sustainability problems by reprocessing
several industrial and agricultural wastes to derive promising carbonaceous materials such as graphene, biochar, and
activated carbon. This approach will further resolve the difficulties related to the safe recycling of waste materials and also
the consumption of fossil fuels. This work focuses on synthesizing biochar via hydrothermal carbonization at temperatures
220 ℃ and residence time (6, 12, 18, and 24 h) and their effects on product yield and other parameters studied.
Characterizations of biochar produced at different times were carried out using techniques like X-ray diffraction,
UV-Visible Spectroscopy, and N2 adsorption/desorption isotherm. The biochar yield reduced from 56.4-40.2 wt-% with a
rise in dwelling time. BET surface area was found to increase as we increased the reaction time. On the base of the
maximum surface area, electrochemical analysis was performed to check the role of biochar as a supercapacitor electrode.
 
Date 2023-09-21T04:44:21Z
2023-09-21T04:44:21Z
2023-09
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/62543
https://doi.org/10.56042/ijpap.v61i8.351
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJPAP Vol.61(08) [August 2023]