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Catalytic graphitization of three-dimensional wood-derived porous scaffolds

Johnson, M. T. and Faber, K. T. (2011) Catalytic graphitization of three-dimensional wood-derived porous scaffolds. Journal of Materials Research, 26 (1). pp. 18-25. ISSN 0884-2914. https://resolver.caltech.edu/CaltechAUTHORS:20140715-101550186

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Abstract

A catalytic technique to enhance graphite formation in nongraphitizing carbons was adapted to work with three-dimensional wood-derived scaffolds. Unlike many synthetic graphite precursors, wood and other cellulosic carbons remain largely disordered after high temperature pyrolysis. Using a nickel nitrate liquid catalyst and controlled pyrolysis conditions, wood-derived scaffolds were produced showing similar graphitic content to traditional pitch-based graphite while retaining the high-aspect ratio pores of the precursor wood microstructure. Graphite formation was studied as a function of processing time and pyrolysis temperature, and the resulting carbons were analyzed using x-ray diffraction, Raman spectroscopy, x-ray photoelectron spectroscopy, and electron microscopy techniques.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1557/jmr.2010.88 DOIArticle
http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=7975052&fileId=S0884291410000889PublisherArticle
Additional Information:© 2011 Materials Research Society. Received 20 September 2010; accepted 25 November 2010. This work was funded by the National Science Foundation (DMR-0710630). The SEM, TEM, and Raman spectroscopy work was performed in the EPIC and Keck-II facilities of NUANCE Center at Northwestern University. NUANCE Center is supported by NSF-NSEC, NSF-MRSEC, the Keck Foundation, the State of Illinois, and Northwestern University. This work made use of the J.B. Cohen X-ray Diffraction Facility supported by the MRSEC program of the National Science Foundation (DMR-0520513) at the Materials Research Center of Northwestern University.
Funders:
Funding AgencyGrant Number
NSFDMR-0710630
W. M. Keck FoundationUNSPECIFIED
State of IllinoisUNSPECIFIED
Northwestern UniversityUNSPECIFIED
NSFDMR-0520513
Subject Keywords:C; Catalytic; Pyrolysis
Issue or Number:1
Record Number:CaltechAUTHORS:20140715-101550186
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140715-101550186
Official Citation:M.T. Johnson and K.T. Faber (2011). Catalytic graphitization of three-dimensional wood-derived porous scaffolds. Journal of Materials Research, 26, pp 18-25. doi:10.1557/jmr.2010.88.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:47220
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:15 Jul 2014 19:14
Last Modified:03 Oct 2019 06:51

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