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Comparison of Electrokinetic Properties of Colloidal Fullerenes(n-C60) Formed Using Two Procedures
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2024-09-18 11:10 475閱讀次數(shù)
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Comparison of Electrokinetic Properties of Colloidal Fullerenes(n-C60) Formed Using Two Procedures
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Comparison of Electrokinetic Properties of Colloidal Fullerenes(n-C60) Formed Using Two Procedures
- 作者:JONATHANBRANT,HELENELECOANET,MATTHOTZE,ANDMARKWIESNER ?。―epartmentofCivil&EnvironmentalEngineering,RiceUniversity,MailStop317,Houston,Texas77251-1892) 摘要:InthisstudywereportontheelectrokineticbehaviorofcolloidalaggregatesofC60fullerenes(n-C60)producedthroughtwodifferenttechniques:solventexchangeandextendedmixingwithwater.Inthefirsttechnique,usedtoproducecolloidalmaterialsinseveralrecenttoxicityandtransportstudies,anorganicsolventsuchastetrahydrofuran(THF)isusedtodissolvetheC60beforemixingwithwater.Thesecondtechniqueismoreindicativeofconditionsthatmightoccurinnaturalaquaticsystems.Bothtypesofn-C60wereobservedtobenegativelychargedunderavarietyofsolutionchemistries;however,then-C60formedusingTHFwasmorestronglycharged.Weconcludethatn-C60likelyacquireschargethroughchargetransferfromtheorganicsolvent(whenpresent)andsurfacehydrolysisreactions.Nevertheless,C60iscapableofacquiringchargeandbecomingdispersedasn-C60inwaterwithouttheaidoforganicsolvents,apathwaythatmaybeimportantindeterminingthemobilityoffullerenesinnaturalsystems.Thesefindingsalsoshowthatn-C60madeusingTHFretainsaportionofthesolventintheclusterstructure,subsequentlyinfluencingthecharacteristicsofthen-C60andpossiblyrequiringare-interpretationofresultsfromrecentstudiesonn-C60toxicityusingTHF-derivedmaterials.[詳細]
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2018-08-31 10:11
產品樣冊
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Comparison of Electrokinetic Properties of Colloidal Fullerenes(n-C60) Formed Using Two Procedures
- Comparison of Electrokinetic Properties of Colloidal Fullerenes(n-C60) Formed Using Two Procedures[詳細]
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2024-09-18 11:10
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