Microwave-Assisted Surface Synthesis of a Boron-Carbon-Nitrogen Foam and its Desorption Enthalpy

The modification of microporous carbon foam with boron and nitrogen through a facile microwave chemical treatment are reported. The resulting surfaces of the foam exhibit distinct B–N and carbon domains based on chemical and microscopic analysis, in keeping with theoretical predictions. The resultan...

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Bibliographic Details
Published in:Advanced functional materials 2012-09, Vol.22 (17), p.3682-3690
Main Authors: Paul, Rajib, Voevodin, Andrey A., Zemlyanov, Dimitry, Roy, Ajit K., Fisher, Timothy S.
Format: Article
Language:English
Subjects:
carbon
energy materials
porous materials
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Summary:The modification of microporous carbon foam with boron and nitrogen through a facile microwave chemical treatment are reported. The resulting surfaces of the foam exhibit distinct B–N and carbon domains based on chemical and microscopic analysis, in keeping with theoretical predictions. The resultant materials are shown to exhibit exceptionally high methanol desorption enthalpy and thermal stability in comparison to untreated carbon foam and consequently are suggested as candidate materials for sorption cooling and thermal storage applications using methanol as the adsorbate. Carbon foams provide the combined advantages of large surface area and high thermal conductivity, which are critical for thermal energy storage, but they have low adsorption enthalpy for lightweight hydrocarbons. Microwave heating‐assisted chemical treatment converts carbon foam to B–C–N foam. An enhanced adsorption enthalpy for B–C–N foams can enhance adsorption processes for thermal storage and utilization.
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.201200325