Growth of gold nanoparticle arrays in TiO 2 mesoporous matrixes

An interconnected Au nanoparticle arrangement is obtained by electrodeposition from Au(III) soluble complexes within the pore system of block-copolymer templated mesoporous titania films. The resulting Au@TiO 2 nanocomposites (5 nm Au particles, 5.5 nm amorphous titania walls) have the electrochemic...

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Autores principales: Pérez, M.D., Otal, E., Bilmes, S.A., Soler-Illia, G.J.A.A., Crepaldi, E.L., Grosso, D., Sanchez, C.
Formato: JOUR
Materias:
Block copolymers
Catalysis
Composite materials
Electrodeposition
Insulation
Mesoporous materials
Nanostructured materials
pH effects
Pore size
Titanium oxides
Lyotropic-like phases
Nanoparticles arrays
Polymeric arrays
Pore volume (PV)
Gold
Anodes
Electroplating
Pore Size
Titanium Compounds
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_07437463_v20_n16_p6879_Perez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_07437463_v20_n16_p6879_Perez2023-10-03T15:38:36Z Growth of gold nanoparticle arrays in TiO 2 mesoporous matrixes Pérez, M.D. Otal, E. Bilmes, S.A. Soler-Illia, G.J.A.A. Crepaldi, E.L. Grosso, D. Sanchez, C. Block copolymers Catalysis Composite materials Electrodeposition Insulation Mesoporous materials Nanostructured materials pH effects Pore size Titanium oxides Lyotropic-like phases Nanoparticles arrays Polymeric arrays Pore volume (PV) Gold Anodes Electroplating Gold Insulation Pore Size Titanium Compounds An interconnected Au nanoparticle arrangement is obtained by electrodeposition from Au(III) soluble complexes within the pore system of block-copolymer templated mesoporous titania films. The resulting Au@TiO 2 nanocomposites (5 nm Au particles, 5.5 nm amorphous titania walls) have the electrochemical behavior of a gold electrode of high surface area. The attenuation of Au surface plasmon due to -OH electroadsorption and the existence of mixed localized states in these Au@TiO 2 nanocomposites are observed by in situ spectroelectrochemistry. Fil:Otal, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bilmes, S.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Soler-Illia, G.J.A.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_07437463_v20_n16_p6879_Perez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Block copolymers
Catalysis
Composite materials
Electrodeposition
Insulation
Mesoporous materials
Nanostructured materials
pH effects
Pore size
Titanium oxides
Lyotropic-like phases
Nanoparticles arrays
Polymeric arrays
Pore volume (PV)
Gold
Anodes
Electroplating
Gold
Insulation
Pore Size
Titanium Compounds
spellingShingle Block copolymers
Catalysis
Composite materials
Electrodeposition
Insulation
Mesoporous materials
Nanostructured materials
pH effects
Pore size
Titanium oxides
Lyotropic-like phases
Nanoparticles arrays
Polymeric arrays
Pore volume (PV)
Gold
Anodes
Electroplating
Gold
Insulation
Pore Size
Titanium Compounds
Pérez, M.D.
Otal, E.
Bilmes, S.A.
Soler-Illia, G.J.A.A.
Crepaldi, E.L.
Grosso, D.
Sanchez, C.
Growth of gold nanoparticle arrays in TiO 2 mesoporous matrixes
topic_facet Block copolymers
Catalysis
Composite materials
Electrodeposition
Insulation
Mesoporous materials
Nanostructured materials
pH effects
Pore size
Titanium oxides
Lyotropic-like phases
Nanoparticles arrays
Polymeric arrays
Pore volume (PV)
Gold
Anodes
Electroplating
Gold
Insulation
Pore Size
Titanium Compounds
description An interconnected Au nanoparticle arrangement is obtained by electrodeposition from Au(III) soluble complexes within the pore system of block-copolymer templated mesoporous titania films. The resulting Au@TiO 2 nanocomposites (5 nm Au particles, 5.5 nm amorphous titania walls) have the electrochemical behavior of a gold electrode of high surface area. The attenuation of Au surface plasmon due to -OH electroadsorption and the existence of mixed localized states in these Au@TiO 2 nanocomposites are observed by in situ spectroelectrochemistry.
format JOUR
author Pérez, M.D.
Otal, E.
Bilmes, S.A.
Soler-Illia, G.J.A.A.
Crepaldi, E.L.
Grosso, D.
Sanchez, C.
author_facet Pérez, M.D.
Otal, E.
Bilmes, S.A.
Soler-Illia, G.J.A.A.
Crepaldi, E.L.
Grosso, D.
Sanchez, C.
author_sort Pérez, M.D.
title Growth of gold nanoparticle arrays in TiO 2 mesoporous matrixes
title_short Growth of gold nanoparticle arrays in TiO 2 mesoporous matrixes
title_full Growth of gold nanoparticle arrays in TiO 2 mesoporous matrixes
title_fullStr Growth of gold nanoparticle arrays in TiO 2 mesoporous matrixes
title_full_unstemmed Growth of gold nanoparticle arrays in TiO 2 mesoporous matrixes
title_sort growth of gold nanoparticle arrays in tio 2 mesoporous matrixes
url http://hdl.handle.net/20.500.12110/paper_07437463_v20_n16_p6879_Perez
work_keys_str_mv AT perezmd growthofgoldnanoparticlearraysintio2mesoporousmatrixes
AT otale growthofgoldnanoparticlearraysintio2mesoporousmatrixes
AT bilmessa growthofgoldnanoparticlearraysintio2mesoporousmatrixes
AT solerilliagjaa growthofgoldnanoparticlearraysintio2mesoporousmatrixes
AT crepaldiel growthofgoldnanoparticlearraysintio2mesoporousmatrixes
AT grossod growthofgoldnanoparticlearraysintio2mesoporousmatrixes
AT sanchezc growthofgoldnanoparticlearraysintio2mesoporousmatrixes
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