Journal
CHEMSUSCHEM
Volume 8, Issue 3, Pages 428-432Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201402621
Keywords
carbonization; lignin; porous carbon; supercapacitor; sustainable materials
Funding
- Pacific Northwest National Laboratory's (PNNL) Open Call-LDRD program
- Department of Energy's Office of Biological and Environmental Research
- DARPA Young Faculty Award [N66001-11-1-414]
- National Renewable Energy Laboratory [XGB-2-22204-01]
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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 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.
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