Catalytic graphitization of three-dimensional wood-derived porous scaffolds

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 ni...

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Bibliographic Details
Published inJournal of materials research Vol. 26; no. 1; pp. 18 - 25
Main Authors Johnson, M.T., Faber, K.T.
Format Journal Article
LanguageEnglish
Published New York, USA Cambridge University Press 14.01.2011
Springer International Publishing
Springer Nature B.V
Subjects
Applied and Technical Physics
Biomaterials
Carbon
Graphite
Heat
Inorganic Chemistry
Materials Engineering
Materials research
Materials Science
Microscopy
Nanotechnology
Nickel
Scanning electron microscopy
Silicon nitride
Spectrum analysis
Temperature
Catalytic
Pyrolysis
C
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Summary: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.
ISSN:0884-2914
2044-5326
DOI:10.1557/jmr.2010.88