0000000000384402

AUTHOR

Ana B. Hungría

showing 2 related works from this author

Understanding the role of Ti-rich domains in the stabilization of gold nanoparticles on mesoporous silica-based catalysts

2018

3 Tablae, 14 Figures.-- Supplementary material.-- © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/

AnataseAnataseChemistryNanoparticle02 engineering and technologyMesoporous silica010402 general chemistry021001 nanoscience & nanotechnology01 natural sciencesMicelleCO oxidationCatalysis0104 chemical sciences3. Good healthChemical engineeringColloidal goldNanoparticlesThermal stabilityGoldPhysical and Theoretical Chemistry0210 nano-technologyMesoporous materialDispersion (chemistry)Mesoporous silica
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High-Temperature Stable Gold Nanoparticle Catalysts for Application under Severe Conditions: The Role of TiO2 Nanodomains in Structure and Activity

2015

Metal nanoparticles with precisely controlled size are highly attractive for heterogeneous catalysis. However, their poor thermal stability remains a major concern in their application at realistic operating conditions. This paper demonstrates the possibility of synthesizing gold nanoparticles with exceptional thermal stability. This has been achieved by using a simple conventional deposition–precipitation technique. The material employed as catalyst consists of gold supported on a TiO2-impregnated SiO2 bimodal mesoporous support. The resulting material shows gold nanoparticles with a narrow size distribution around 3.0 nm, homogeneously dispersed over the TiO2/SiO2 material. Most interesti…

Materials sciencechemistry.chemical_elementNanoparticleNanotechnologyGeneral ChemistryHeterogeneous catalysisCatalysislaw.inventionAmorphous solidchemistrylawColloidal goldCalcinationThermal stabilityMesoporous materialTitaniumACS Catalysis
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