Abstract

The induced defects in carbonaceous materials for hydrogen storage were studied. The effect of exfoliation was studied and the graphite nanofibers (GNF) diameter before and after exfoliation was quantified. Thermal decomposition of the GNF before and after sulfuric/nitric acid exfoliation indicated a clear loss of thermal stability. GNF exfoliation enhanced the hydrogen uptake by a factor of five compared to the untreated GNF. The amorphous carbon was reactive than GNF, and decomposed before the GNF. The higher pretreatment temperature was intended to preferentially remove amorphous carbon leaving a higher purity of exfoliated GNF.

Department(s)

Chemical and Biochemical Engineering

Sponsor(s)

Pennsylvania State University.Institute for the EnvironmentPennsylvania State University.Energy InstitutePennsylvania State.College of Earth and Mineral SciencesPennsylvania State University.H2E Center

Comments

This work was funded through start-up funds proved by Pennsylvania State's Institute for the Environment, The Energy Institute, and The College of Earth & Mineral Sciences. Funding for exfoliation of carbon for hydrogen storage was provided, in part, by the H2E Center at Penn State University.

International Standard Serial Number (ISSN)

0569-3772

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2005 American Chemical Society (ACS), Division of Fuel Chemistry, All rights reserved.

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