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Article: Novel ice structures in carbon nanopores: Pressure enhancement effect of confinement

TitleNovel ice structures in carbon nanopores: Pressure enhancement effect of confinement
Authors
Issue Date2011
PublisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/pccp
Citation
Physical Chemistry Chemical Physics, 2011, v. 13 n. 19, p. 9008-9013 How to Cite?
AbstractWe report experimental results on the structure and melting behavior of ice confined in multi-walled carbon nanotubes and ordered mesoporous carbon CMK-3, which is the carbon replica of a SBA-15 silica template. The silica template has cylindrical mesopores with micropores connecting the walls of neighboring mesopores. The structure of the carbon replica material CMK-3 consists of carbon rods connected by smaller side-branches, with quasi-cylindrical mesopores of average pore size 4.9 nm and micropores of 0.6 nm. Neutron diffraction and differential scanning calorimetry have been used to determine the structure of the confined ice and the solid-liquid transition temperature. The results are compared with the behavior of water in multi-walled carbon nanotubes of inner diameters of 2.4 nm and 4 nm studied by the same methods. For D 2O in CMK-3 we find evidence of the existence of nanocrystals of cubic ice and ice IX; the diffraction results also suggest the presence of ice VIII, although this is less conclusive. We find evidence of cubic ice in the case of the carbon nanotubes. For bulk water these crystal forms only occur at temperatures below 170 K in the case of cubic ice, and at pressures of hundreds or thousands of MPa in the case of ice VIII and IX. These phases appear to be stabilized by the confinement. © 2011 the Owner Societies.
Persistent Identifierhttp://hdl.handle.net/10722/138991
ISSN
2014 Impact Factor: 4.493
2014 SCImago Journal Rankings: 1.606
ISI Accession Number ID
Funding AgencyGrant Number
Polish Ministry of Higher Education and InformaticsN 202 07 03 33
U.S. National Science FoundationCBET-0932656
HK RGCHKU 700209P
Funding Information:

This work was supported by a grant from the Polish Ministry of Higher Education and Informatics, Nr. N 202 07 03 33. KEG and LLH thank the U.S. National Science Foundation for partial support of this work (grant no. CBET-0932656). KYC thanks the support of HK RGC (Grant HKU 700209P). Helpful discussion with Dr M. Thommes, Quantachrome Instruments, on interpretation of pore size distribution was most appreciated.

References
Grants

 

DC FieldValueLanguage
dc.contributor.authorJazdzewska, Men_HK
dc.contributor.authorŚliwinskaBartkowiak, MMen_HK
dc.contributor.authorBeskrovnyy, AIen_HK
dc.contributor.authorVasilovskiy, SGen_HK
dc.contributor.authorTing, SWen_HK
dc.contributor.authorChan, KYen_HK
dc.contributor.authorHuang, Len_HK
dc.contributor.authorGubbins, KEen_HK
dc.date.accessioned2011-09-23T05:43:46Z-
dc.date.available2011-09-23T05:43:46Z-
dc.date.issued2011en_HK
dc.identifier.citationPhysical Chemistry Chemical Physics, 2011, v. 13 n. 19, p. 9008-9013en_HK
dc.identifier.issn1463-9076en_HK
dc.identifier.urihttp://hdl.handle.net/10722/138991-
dc.description.abstractWe report experimental results on the structure and melting behavior of ice confined in multi-walled carbon nanotubes and ordered mesoporous carbon CMK-3, which is the carbon replica of a SBA-15 silica template. The silica template has cylindrical mesopores with micropores connecting the walls of neighboring mesopores. The structure of the carbon replica material CMK-3 consists of carbon rods connected by smaller side-branches, with quasi-cylindrical mesopores of average pore size 4.9 nm and micropores of 0.6 nm. Neutron diffraction and differential scanning calorimetry have been used to determine the structure of the confined ice and the solid-liquid transition temperature. The results are compared with the behavior of water in multi-walled carbon nanotubes of inner diameters of 2.4 nm and 4 nm studied by the same methods. For D 2O in CMK-3 we find evidence of the existence of nanocrystals of cubic ice and ice IX; the diffraction results also suggest the presence of ice VIII, although this is less conclusive. We find evidence of cubic ice in the case of the carbon nanotubes. For bulk water these crystal forms only occur at temperatures below 170 K in the case of cubic ice, and at pressures of hundreds or thousands of MPa in the case of ice VIII and IX. These phases appear to be stabilized by the confinement. © 2011 the Owner Societies.en_HK
dc.languageengen_US
dc.publisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/pccpen_HK
dc.relation.ispartofPhysical Chemistry Chemical Physicsen_HK
dc.subject.meshCarbon - chemistry-
dc.subject.meshIce-
dc.subject.meshMolecular Structure-
dc.subject.meshNanostructures - chemistry-
dc.subject.meshPorosity-
dc.titleNovel ice structures in carbon nanopores: Pressure enhancement effect of confinementen_HK
dc.typeArticleen_HK
dc.identifier.emailChan, KY:hrsccky@hku.hken_HK
dc.identifier.authorityChan, KY=rp00662en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1039/c0cp02797aen_HK
dc.identifier.pmid21451863-
dc.identifier.scopuseid_2-s2.0-79955545136en_HK
dc.identifier.hkuros194960en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79955545136&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume13en_HK
dc.identifier.issue19en_HK
dc.identifier.spage9008en_HK
dc.identifier.epage9013en_HK
dc.identifier.isiWOS:000289955000044-
dc.publisher.placeUnited Kingdomen_HK
dc.relation.projectMulti-scale Structuring of Porous Electrodes for Supercapacitors and Fuel Cells.-
dc.identifier.scopusauthoridJazdzewska, M=24544684700en_HK
dc.identifier.scopusauthoridŚliwinskaBartkowiak, MM=6701662748en_HK
dc.identifier.scopusauthoridBeskrovnyy, AI=15838865600en_HK
dc.identifier.scopusauthoridVasilovskiy, SG=37113966600en_HK
dc.identifier.scopusauthoridTing, SW=25822814400en_HK
dc.identifier.scopusauthoridChan, KY=7406034142en_HK
dc.identifier.scopusauthoridHuang, L=19337084400en_HK
dc.identifier.scopusauthoridGubbins, KE=7005918292en_HK

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