Synthesis of Co3O4 nano-octahedra enclosed by {111} facets and their excellent lithium storage properties as anode material of lithium ion batteries
| Data(s) |
2013
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| Resumo |
Abstract<br/>Nano-sized(nO-Co3O4, 387nm)andmicron-sized(mO-Co3O4, 6.65 mm) Co3O4 octahedraenclosedby<br/>{111}facetshavebeenbothsynthesizedthroughawetchemicalmethodfollowedbythermal<br/>treatment,andservedasanodematerialoflithium ionbatteries(LIBs).Electrochemicalresults<br/>demonstratethatthenO-Co3O4 showsexcellentlongcyclabilityandratecapability.ThenO-Co3O4<br/>candeliverastablechargecapacityashighas955.5mAhg1 upto200cycleswithoutnoticeable<br/>capacityfadingatacharge/dischargecurrentdensityof0.1Ag1 (ca. 0.11C).Theexcellent<br/>electrochemicalperformanceisascribedtothenano-sizeandthe{111}facetsthatenclosethe<br/>octahedra. WhilethemO-Co3O4 could onlymaintain288.5mAhg1 after 200cycles,illustratingvery<br/>poorcyclingperformance,whichisascribedtothelargeparticlesizethatmaycausehugevolume<br/>changeduringrepeatedcharging/discharging process.TheresultsrevealthattheCo3O4 nano-<br/>octahedrawouldbeapromisinganodematerialforthenext-generationofLIBs. |
| Identificador | |
| Idioma(s) |
eng |
| Direitos |
info:eu-repo/semantics/restrictedAccess |
| Fonte |
Xu , G L , Li , J T , Huang , L , Lin , W & Sun , S G 2013 , ' Synthesis of Co3O4 nano-octahedra enclosed by {111} facets and their excellent lithium storage properties as anode material of lithium ion batteries ' Nano Energy , vol 2 , pp. 394-402 . DOI: dx.doi.org/10.1016/j.nanoen.2012.11.005 |
| Tipo |
article |
