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Title: Supercapacitance and oxygen reduction characteristics of sulfur self-doped micro/mesoporous bio-carbon derived from lignin

Abstract

The growing global concerns about the increased fossil fuel consumption and related environmental issues have motived scientists to find new, green and sustainable energy resources and technologies. In this work, byproduct lignin biomass was successfully converted into sulfur self-doped carbon via in-situ hydrothermal carbonization followed by thermal annealing. The sulfur surface content in the as-prepared porous carbon is up to 3.2 wt % as indicated by the XPS measurements. Beyond the traditional synthesis methods which employ KOH or ZnCl 2 treatment to activate the carbon surface, the developed synthesis strategy doesn't include such separate activation step. Activation of the as-prepared porous carbons has been conducted in-situ via a calcium ions during the synthesis process. The resulting materials displayed high BET surface areas up to 660 m 2 g -1 along with micro/meso porosity and graphitic/amorphous carbon structure. The as-prepared sulfur self-doped electrode materials displayed high electrochemical activity for supercapacitor applications. The sulfur-doped carbon SC-850 electrode exhibited capacitance of 225 F/g at a current density of 0.5 A/g, and high durability where the electrode capacitance did not change over 10,000 cycles at harsh conditions. Additionally, the as-prepared sulfur-doped carbons are promising catalysts for oxygen reduction reaction with 3.4 electrons transferred permore » molecule at 0.8 V, which approaches the optimum 4-electron pathway.« less

Authors:
 [1];  [2];  [3];  [3];  [3]
  1. Virginia Commonwealth Univ., Richmond, VA (United States); Osmaniye Korkut Ata University (Turkey)
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Assiut Univ. (Egypt)
  3. Virginia Commonwealth Univ., Richmond, VA (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1510467
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Materials Chemistry and Physics
Additional Journal Information:
Journal Volume: 216; Journal Issue: C; Journal ID: ISSN 0254-0584
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Cell; Hydrothermal carbonization; Lignin; Oxygen reduction; Sulfur-doping; Supercapacitor

Citation Formats

Demir, Muslum, Farghaly, Ahmed A., Decuir, Matthew J., Collinson, Maryanne M., and Gupta, Ram B. Supercapacitance and oxygen reduction characteristics of sulfur self-doped micro/mesoporous bio-carbon derived from lignin. United States: N. p., 2018. Web. doi:10.1016/j.matchemphys.2018.06.008.
Demir, Muslum, Farghaly, Ahmed A., Decuir, Matthew J., Collinson, Maryanne M., & Gupta, Ram B. Supercapacitance and oxygen reduction characteristics of sulfur self-doped micro/mesoporous bio-carbon derived from lignin. United States. doi:10.1016/j.matchemphys.2018.06.008.
Demir, Muslum, Farghaly, Ahmed A., Decuir, Matthew J., Collinson, Maryanne M., and Gupta, Ram B. Tue . "Supercapacitance and oxygen reduction characteristics of sulfur self-doped micro/mesoporous bio-carbon derived from lignin". United States. doi:10.1016/j.matchemphys.2018.06.008. https://www.osti.gov/servlets/purl/1510467.
@article{osti_1510467,
title = {Supercapacitance and oxygen reduction characteristics of sulfur self-doped micro/mesoporous bio-carbon derived from lignin},
author = {Demir, Muslum and Farghaly, Ahmed A. and Decuir, Matthew J. and Collinson, Maryanne M. and Gupta, Ram B.},
abstractNote = {The growing global concerns about the increased fossil fuel consumption and related environmental issues have motived scientists to find new, green and sustainable energy resources and technologies. In this work, byproduct lignin biomass was successfully converted into sulfur self-doped carbon via in-situ hydrothermal carbonization followed by thermal annealing. The sulfur surface content in the as-prepared porous carbon is up to 3.2 wt % as indicated by the XPS measurements. Beyond the traditional synthesis methods which employ KOH or ZnCl2 treatment to activate the carbon surface, the developed synthesis strategy doesn't include such separate activation step. Activation of the as-prepared porous carbons has been conducted in-situ via a calcium ions during the synthesis process. The resulting materials displayed high BET surface areas up to 660 m2 g-1 along with micro/meso porosity and graphitic/amorphous carbon structure. The as-prepared sulfur self-doped electrode materials displayed high electrochemical activity for supercapacitor applications. The sulfur-doped carbon SC-850 electrode exhibited capacitance of 225 F/g at a current density of 0.5 A/g, and high durability where the electrode capacitance did not change over 10,000 cycles at harsh conditions. Additionally, the as-prepared sulfur-doped carbons are promising catalysts for oxygen reduction reaction with 3.4 electrons transferred per molecule at 0.8 V, which approaches the optimum 4-electron pathway.},
doi = {10.1016/j.matchemphys.2018.06.008},
journal = {Materials Chemistry and Physics},
number = C,
volume = 216,
place = {United States},
year = {2018},
month = {6}
}

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Cited by: 4 works
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