electronic supplementary information hollow agpt/sio ...£o carlos – sp, brasil. *corresponding...
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ElectronicSupplementaryInformation
HollowAgPt/SiO2NanomaterialswithControlledSurfaceMorphologies:Is
theNumberofActiveSitesImperativetoOptimizedCatalyticPerformances?
ThennerS.Rodrigues,1AlissonH.M.daSilva,2AndersonG.M.daSilva,1DanielG.Ceara,1
JanainaF.Gomes,2JoseM.Assaf,2andPedroH.C.Camargo1*
1DepartamentodeQuímicaFundamental,InstitutodeQuímica,UniversidadedeSãoPaulo,
Av.Prof.LineuPrestes,748,05508-000,SãoPaulo-SP,Brazil
2DepartamentodeEngenhariaQuímica–UniversidadeFederaldeSãoCarlos,13565-905,
SãoCarlos–SP,Brasil.
*Correspondingauthor:E-mail:[email protected]
Electronic Supplementary Material (ESI) for Catalysis Science & Technology.This journal is © The Royal Society of Chemistry 2015
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Figure S1. TEM image for Ag spheres (A) and SEM image for Ag wires (B) employed as
templatesforthesynthesisoftheAgPthollownanostructuresdepictedinFigure1.
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Figure S2. UV−VIS extinction spectra recorded from aqueous suspensions containing Ag
nanospheres, nanoshells, and assembled nanoparticles (A) and wires, nanotubes with
smoothsurfaces,andnanotubeswithroughsurfaces(B).
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Figure S3. (A and B) TEM and (C and D) SEM images for AgPt nanoshells (A), assembled
nanoparticles (B),nanotubewithsmoothsurfaces (C),andnanotubeswith roughsurfaces
(D)obtainedafter1hemployingthescaled-upapproachperformedinthesameconditions
describedinScheme1.
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TableS1.AgandPtAtomicpercentagesobtainedbyICP-OES.
Sample Ag(mol%) Pt(mol%)
nanoshells 49 51
assemblednanoparticles 49 51
nanotubes(smoothsurface) 74 26
nanotubes(roughsurface) 75 25