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Title: Controlling porosity in lignin-derived nanoporous carbon for supercapacitor applications

Low-cost renewable lignin has been used as a precursor to produce porous carbons. However, to date, it has not been easy to obtain high surface area porous carbon without activation processes or templating agents. Here, we demonstrate that low molecular weight lignin yields highly porous carbon (1092 m² g⁻¹) with more graphitization through direct carbonization without additional activation processes or templating agents. We found that molecular weight and oxygen consumption during carbonization are critical factors to obtain high surface area, graphitized porous carbons. This highly porous carbon from low-cost renewable lignin sources is a good candidate for supercapacitor electrode materials.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [5] ;  [5] ;  [6] ;  [6] ;  [5] ;  [5] ;  [5] ;  [7] ;  [5] ;  [2] ;  [5]
  1. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
  2. Washington State University, Richland, WA (United States)
  3. Texas A&M University, College Station, TX (United States)
  4. Washington Statte University, Richland, WA (United States)
  5. Pacific Northwest National Laboratory, Richland, WA (United States)
  6. Washington State University, Vancouver, WA (United States)
  7. National Renewable Energy Laboratory, Golden, CO (United States)
Publication Date:
OSTI Identifier:
1184755
Report Number(s):
PNNL--SA-106038
Journal ID: ISSN 1864-5631
Grant/Contract Number:
AC05-76RL01830
Type:
Accepted Manuscript
Journal Name:
ChemSusChem
Additional Journal Information:
Journal Volume: 8; Journal Issue: 3; Journal ID: ISSN 1864-5631
Publisher:
ChemPubSoc Europe
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE carbonization; lignin; porous carbon; supercapacitor; sustainable materials