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Hydrogen storage properties of B‐ and N‐doped microporous carbon

Identifieur interne : 000275 ( Istex/Corpus ); précédent : 000274; suivant : 000276

Hydrogen storage properties of B‐ and N‐doped microporous carbon

Auteurs : Lifeng Wang ; Frances H. Yang ; Ralph T. Yang

Source :

RBID : ISTEX:321DF89F4A4AFDBEC7E09E63766755A9A44A23F8

English descriptors

Abstract

A B‐ and N‐doped microporous carbon has been synthesized via a substitution reaction. The obtained carbon exhibited much higher surface area than the previously reported B‐ and N‐doped carbon. The hydrogen storage measurements indicated that the B‐ and N‐doped microporous carbon had a 53% higher storage capacity than the carbon materials with similar surface areas. Furthermore, hydrogen storage via spillover was studied on Ru‐supported B‐ and N‐doped microporous carbon and a storage capacity of 1.2 wt % at 298 K and 10 MPa was obtained, showing an enhancement factor of 2.2. Ab initio molecular orbital calculations were also performed for the binding energies between the spiltover hydrogen atom and various sites on the doped carbon. The theoretical calculations can explain the experimental results well, which also shed light on the most favorable and possible sites with which the spiltover hydrogen atoms bind. © 2009 American Institute of Chemical Engineers AIChE J, 2009

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DOI: 10.1002/aic.11851

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ISTEX:321DF89F4A4AFDBEC7E09E63766755A9A44A23F8

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<abstract lang="en">A B‐ and N‐doped microporous carbon has been synthesized via a substitution reaction. The obtained carbon exhibited much higher surface area than the previously reported B‐ and N‐doped carbon. The hydrogen storage measurements indicated that the B‐ and N‐doped microporous carbon had a 53% higher storage capacity than the carbon materials with similar surface areas. Furthermore, hydrogen storage via spillover was studied on Ru‐supported B‐ and N‐doped microporous carbon and a storage capacity of 1.2 wt % at 298 K and 10 MPa was obtained, showing an enhancement factor of 2.2. Ab initio molecular orbital calculations were also performed for the binding energies between the spiltover hydrogen atom and various sites on the doped carbon. The theoretical calculations can explain the experimental results well, which also shed light on the most favorable and possible sites with which the spiltover hydrogen atoms bind. © 2009 American Institute of Chemical Engineers AIChE J, 2009</abstract>
<note type="funding">US Department of Energy's Office of Energy Efficiency and Renewable Energy</note>
<note type="funding">Hydrogen Sorption Center of Excellence (HS CoE)</note>
<note type="funding">NSF</note>
<subject lang="en">
<genre>Keywords</genre>
<topic>microporous carbon</topic>
<topic>boron‐ and nitrogen‐doped carbon</topic>
<topic>hydrogen storage</topic>
<topic>hydrogen spillover</topic>
<topic>hydrogen binding on carbon</topic>
</subject>
<relatedItem type="host">
<titleInfo>
<title>AIChE Journal</title>
</titleInfo>
<titleInfo type="abbreviated">
<title>AIChE J.</title>
</titleInfo>
<genre type="Journal">journal</genre>
<note type="content"> Additional Supporting Information may be found in the online version of this article.Supporting Info Item: Supplementary Material - </note>
<subject>
<genre>article category</genre>
<topic>Materials, Interfaces, and Electrochemical Phenomena</topic>
</subject>
<identifier type="ISSN">0001-1541</identifier>
<identifier type="eISSN">1547-5905</identifier>
<identifier type="DOI">10.1002/(ISSN)1547-5905</identifier>
<identifier type="PublisherID">AIC</identifier>
<part>
<date>2009</date>
<detail type="volume">
<caption>vol.</caption>
<number>55</number>
</detail>
<detail type="issue">
<caption>no.</caption>
<number>7</number>
</detail>
<extent unit="pages">
<start>1823</start>
<end>1833</end>
<total>11</total>
</extent>
</part>
</relatedItem>
<identifier type="istex">321DF89F4A4AFDBEC7E09E63766755A9A44A23F8</identifier>
<identifier type="DOI">10.1002/aic.11851</identifier>
<identifier type="ArticleID">AIC11851</identifier>
<accessCondition type="use and reproduction" contentType="copyright">Copyright © 2009 American Institute of Chemical Engineers (AIChE)</accessCondition>
<recordInfo>
<recordContentSource>WILEY</recordContentSource>
<recordOrigin>Wiley Subscription Services, Inc., A Wiley Company</recordOrigin>
</recordInfo>
</mods>
</metadata>
<serie></serie>
</istex>
</record>

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