Hydrogen storage properties of B‐ and N‐doped microporous carbon
Identifieur interne : 000132 ( Main/Exploration ); précédent : 000131; suivant : 000133Hydrogen storage properties of B‐ and N‐doped microporous carbon
Auteurs : Lifeng Wang [États-Unis] ; Frances H. Yang [États-Unis] ; Ralph T. Yang [États-Unis]Source :
- AIChE Journal [ 0001-1541 ] ; 2009-07.
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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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Yang</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><placeName><region type="state">Michigan</region></placeName><wicri:cityArea>Dept. of Chemical Engineering, University of Michigan, Ann Arbor</wicri:cityArea></affiliation></author><author><name sortKey="Yang, Ralph T" sort="Yang, Ralph T" uniqKey="Yang R" first="Ralph T." last="Yang">Ralph T. Yang</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><placeName><region type="state">Michigan</region></placeName><wicri:cityArea>Dept. of Chemical Engineering, University of Michigan, Ann Arbor</wicri:cityArea></affiliation></author></analytic><monogr></monogr><series><title level="j">AIChE Journal</title><title level="j" type="abbrev">AIChE J.</title><idno type="ISSN">0001-1541</idno><idno type="eISSN">1547-5905</idno><imprint><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>Hoboken</pubPlace><date type="published" when="2009-07">2009-07</date><biblScope unit="volume">55</biblScope><biblScope unit="issue">7</biblScope><biblScope unit="page" from="1823">1823</biblScope><biblScope unit="page" to="1833">1833</biblScope></imprint><idno type="ISSN">0001-1541</idno></series><idno type="istex">321DF89F4A4AFDBEC7E09E63766755A9A44A23F8</idno><idno type="DOI">10.1002/aic.11851</idno><idno type="ArticleID">AIC11851</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0001-1541</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>boron‐ and nitrogen‐doped carbon</term><term>hydrogen binding on carbon</term><term>hydrogen spillover</term><term>hydrogen storage</term><term>microporous carbon</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml: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</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Michigan</li></region></list><tree><country name="États-Unis"><region name="Michigan"><name sortKey="Wang, Lifeng" sort="Wang, Lifeng" uniqKey="Wang L" first="Lifeng" last="Wang">Lifeng Wang</name></region><name sortKey="Yang, Frances H" sort="Yang, Frances H" uniqKey="Yang F" first="Frances H." last="Yang">Frances H. Yang</name><name sortKey="Yang, Ralph T" sort="Yang, Ralph T" uniqKey="Yang R" first="Ralph T." last="Yang">Ralph T. Yang</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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