000187681 001__ 187681 000187681 005__ 20240619092105.0 000187681 0247_ $$2doi$$a10.1016/j.carbon.2014.07.020 000187681 0247_ $$2ISSN$$a0008-6223 000187681 0247_ $$2ISSN$$a1873-3891 000187681 0247_ $$2WOS$$aWOS:000341463900044 000187681 037__ $$aFZJ-2015-01306 000187681 082__ $$a540 000187681 1001_ $$0P:(DE-HGF)0$$aBañuelos, José Leobardo$$b0$$eCorresponding Author 000187681 245__ $$aThe influence of a hierarchical porous carbon network on the coherent dynamics of a nanoconfined room temperature ionic liquid: A neutron spin echo and atomistic simulation investigation 000187681 260__ $$aAmsterdam [u.a.]$$bElsevier Science$$c2014 000187681 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1423142977_20659 000187681 3367_ $$2DataCite$$aOutput Types/Journal article 000187681 3367_ $$00$$2EndNote$$aJournal Article 000187681 3367_ $$2BibTeX$$aARTICLE 000187681 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000187681 3367_ $$2DRIVER$$aarticle 000187681 520__ $$aThe molecular-scale dynamic properties of the room temperature ionic liquid (RTIL) 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, or [C4mim+][Tf2N−], confined in hierarchical microporous–mesoporous carbon, were investigated using neutron spin echo (NSE) and molecular dynamics (MD) simulations. Both NSE and MD reveal pronounced slowing of the overall collective dynamics, including the presence of an immobilized fraction of RTIL at the pore wall, on the time scales of these approaches. A fraction of the dynamics, corresponding to RTIL inside 0.75 nm micropores located along the mesopore surfaces, are faster than those of RTIL in direct contact with the walls of 5.8 nm and 7.8 nm cylindrical mesopores. This behavior is ascribed to the near-surface confined-ion density fluctuations resulting from the ion–ion and ion–wall interactions between the micropores and mesopores as well as their confinement geometries. Strong micropore–RTIL interactions result in less-coordinated RTIL within the micropores than in the bulk fluid. Increasing temperature from 296 K to 353 K reduces the immobilized RTIL fraction and results in nearly an order of magnitude increase in the RTIL dynamics. The observed interfacial phenomena underscore the importance of tailoring the surface properties of porous carbons to achieve desirable electrolyte dynamic behavior, since this impacts the performance in applications such as electrical energy storage devices. 000187681 536__ $$0G:(DE-HGF)POF2-54G24$$a54G - JCNS (POF2-54G24)$$cPOF2-54G24$$fPOF II$$x0 000187681 588__ $$aDataset connected to CrossRef, juser.fz-juelich.de 000187681 65017 $$0V:(DE-MLZ)GC-150-1$$2V:(DE-HGF)$$aKey Technologies$$x2 000187681 65017 $$0V:(DE-MLZ)GC-150$$2V:(DE-HGF)$$aNano Science and Technology$$x0 000187681 65017 $$0V:(DE-MLZ)GC-110$$2V:(DE-HGF)$$aEnergy$$x1 000187681 65027 $$0V:(DE-MLZ)SciArea-210$$2V:(DE-HGF)$$aSoft Condensed Matter$$x2 000187681 65027 $$0V:(DE-MLZ)SciArea-120$$2V:(DE-HGF)$$aCondensed Matter Physics$$x0 000187681 65027 $$0V:(DE-MLZ)SciArea-180$$2V:(DE-HGF)$$aMaterials Science$$x1 000187681 693__ $$0EXP:(DE-Juel1)SNS-NSE-20150203$$5EXP:(DE-Juel1)SNS-NSE-20150203$$eSNS-NSE: Neutron Spin Echo Spectrometer$$x0 000187681 7001_ $$0P:(DE-HGF)0$$aFeng, Guang$$b1 000187681 7001_ $$0P:(DE-HGF)0$$aFulvio, Pasquale F.$$b2 000187681 7001_ $$0P:(DE-HGF)0$$aLi, Song$$b3 000187681 7001_ $$0P:(DE-HGF)0$$aRother, Gernot$$b4 000187681 7001_ $$0P:(DE-Juel1)130509$$aArend, Nikolas$$b5$$ufzj 000187681 7001_ $$0P:(DE-HGF)0$$aFaraone, Antonio$$b6 000187681 7001_ $$0P:(DE-HGF)0$$aDai, Sheng$$b7 000187681 7001_ $$0P:(DE-HGF)0$$aCummings, Peter T.$$b8 000187681 7001_ $$0P:(DE-HGF)0$$aWesolowski, David J.$$b9 000187681 773__ $$0PERI:(DE-600)2014715-6$$a10.1016/j.carbon.2014.07.020$$gVol. 78, p. 415 - 427$$p415 - 427$$tCarbon$$v78$$x0008-6223$$y2014 000187681 8564_ $$uhttps://juser.fz-juelich.de/record/187681/files/FZJ-2015-01306.pdf$$yRestricted 000187681 909CO $$ooai:juser.fz-juelich.de:187681$$pVDB$$pVDB:MLZ 000187681 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR 000187681 915__ $$0StatID:(DE-HGF)0110$$2StatID$$aWoS$$bScience Citation Index 000187681 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded 000187681 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection 000187681 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bThomson Reuters Master Journal List 000187681 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS 000187681 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline 000187681 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences 000187681 915__ $$0StatID:(DE-HGF)9905$$2StatID$$aIF >= 5 000187681 9141_ $$y2014 000187681 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130509$$aForschungszentrum Jülich GmbH$$b5$$kFZJ 000187681 9132_ $$0G:(DE-HGF)POF3-600$$1G:(DE-HGF)POF3$$2G:(DE-HGF)POF$$9G:(DE-HGF)POF3-6G15$$aDE-HGF$$bProgrammorientierte Förderung$$lPOF III$$vForschungsbereich Materie$$x0 000187681 9132_ $$0G:(DE-HGF)POF3-623$$1G:(DE-HGF)POF3-620$$2G:(DE-HGF)POF3-600$$9G:(DE-HGF)POF3-6G4$$aDE-HGF$$bForschungsbereich Materie$$lVon Materie zu Materialien und Leben$$vFacility topic: Neutrons for Research on Condensed Matter$$x1 000187681 9131_ $$0G:(DE-HGF)POF2-54G24$$1G:(DE-HGF)POF2-540$$2G:(DE-HGF)POF2-500$$3G:(DE-HGF)POF2$$4G:(DE-HGF)POF$$aDE-HGF$$bStruktur der Materie$$lForschung mit Photonen, Neutronen, Ionen$$vJCNS$$x0 000187681 9201_ $$0I:(DE-Juel1)JCNS-FRM-II-20110218$$kJCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II$$lJCNS-FRM-II$$x0 000187681 9201_ $$0I:(DE-Juel1)JCNS-1-20110106$$kNeutronenstreuung ; JCNS-1$$lNeutronenstreuung$$x1 000187681 9201_ $$0I:(DE-Juel1)ICS-1-20110106$$kICS-1$$lNeutronenstreuung$$x2 000187681 980__ $$ajournal 000187681 980__ $$aVDB 000187681 980__ $$aI:(DE-Juel1)JCNS-FRM-II-20110218 000187681 980__ $$aI:(DE-Juel1)JCNS-1-20110106 000187681 980__ $$aI:(DE-Juel1)ICS-1-20110106 000187681 980__ $$aUNRESTRICTED 000187681 981__ $$aI:(DE-Juel1)IBI-8-20200312 000187681 981__ $$aI:(DE-Juel1)JCNS-1-20110106 000187681 981__ $$aI:(DE-Juel1)JCNS-1-20110106 000187681 981__ $$aI:(DE-Juel1)ICS-1-20110106