Physisorption of hydrogen on boron-containing carbon (B/C) material prepared by organoborane precursor

Z. C. Zhang, W. Chen, T. C.Mike Chung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


This paper discusses the synthesis of boron substituted carbon (B/C) materials by pyrolysis of two organic and polymeric precursors, which are prepared by chloroboration of phenylene acetylene and phenyl diacetylene, respectively. Some of the resulting B/C materials were evaluated in hydrogen physisorption from ambient to low temperatures under various hydrogen pressures. Evidently, through the precursor design it is possible to transform some B atoms in the precursor into B/C material by pyrolysis. Despite the dense structure (without significant porosity by SEM and BET), the B/C material with 1.6 wt% B content shows hydrogen adsorption 0.7 and 2.15 wt% at 25 and -78°C, respectively, under 1300 psi hydrogen pressure. The adsorption-desorption cycles were repeated many times without any detectable change. Apparently, the empty p-orbital in the substituted B atom increases the binding energy of hydrogen to the B/C surface of graphitic platelet, which is reversible by pressure and ambient temperature. copyright The Electrochemical Society.

Original languageEnglish (US)
Title of host publicationHydrogen Production, Transport, and Storage
PublisherElectrochemical Society Inc.
Number of pages11
ISBN (Print)9781566776028
StatePublished - 2006
Event209th ECS Meeting - Denver, CO, United States
Duration: May 7 2006May 12 2006

Publication series

NameECS Transactions
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737


Other209th ECS Meeting
Country/TerritoryUnited States
CityDenver, CO

All Science Journal Classification (ASJC) codes

  • General Engineering


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