期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 54, 期 43, 页码 10731-10739出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.5b02614
关键词
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资金
- Ministry of National Educational of Republic of Turkey
- National Science Foundation [1266438]
- U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]
- U.S. Department of Energy, Office of Basic Energy Sciences [DE-SC0002576]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1266438] Funding Source: National Science Foundation
Lignin is a high-volume byproduct from the pulp and paper industry and is currently burned to generate electricity and process heat. The industry has been searching for high value-added uses of lignin to improve the process economics. In addition, battery manufacturers are seeking nonfossil sources of graphitic carbon for environmental sustainability. In this work, lignin (which is a cross-linked polymer of phenols, a component of biomass) is converted into graphitic porous carbon using a two-step conversion. Lignin is first carbonized in water at 300 degrees C and 1500 psi to produce biochar, which is then graphitized using a metal nitrate catalyst at 900-1100 degrees C in an inert gas at 15 psi. Graphitization effectiveness of three different catalysts-iron, cobalt, and manganese nitrates-is examined. The product is analyzed for morphology, thermal stability, surface properties, and electrical conductivity. Both temperature and catalyst type influenced the degree of graphitization. A good quality graphitic carbon was obtained using catalysis by Mn(NO3)(2) at 900 degrees C and Co(NO3)(2) at 1100 degrees C.
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