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Selective suppression of {112} anatase facets by fluorination for enhanced TiO2 particle size and phase stability at elevated temperatures (2021)
Journal Article
Kohlrausch, E. C., Dos Reis, R., Lodge, R. W., Vicente, I., Brolo, A. G., Dupont, J., …Santos, M. J. L. (2021). Selective suppression of {112} anatase facets by fluorination for enhanced TiO2 particle size and phase stability at elevated temperatures. Nanoscale Advances, 3(21), 6223-6230. https://doi.org/10.1039/d1na00528f

Generally, anatase is the most desirable TiO2 polymorphic phase for photovoltaic and photocatalytic applications due to its higher photoconductivity and lower recombination rates compared to the rutile phase. However, in applications where temperatur... Read More about Selective suppression of {112} anatase facets by fluorination for enhanced TiO2 particle size and phase stability at elevated temperatures.

Tunneling effects in confined gold nanoparticle hydrogenation catalysts (2019)
Journal Article
Luza, L., Gual, A., Fernandes, J. A., Eberhardt, D., & Dupont, J. (2019). Tunneling effects in confined gold nanoparticle hydrogenation catalysts. Physical Chemistry Chemical Physics, 21(30), 16615-16622. https://doi.org/10.1039/c9cp03012c

Clean surface gold nanoparticles (AuNPs) of ?6.6 nm that were confined in ionic liquid (IL) cages of hybrid ?-alumina (?-Al2O3) displayed hydrogenation pathways in the reduction of trans-cinnamaldehyde distinct from those imprinted directly onto ?-Al... Read More about Tunneling effects in confined gold nanoparticle hydrogenation catalysts.

Efficient Electrocatalytic CO2 Reduction Driven by Ionic Liquid Buffer‐Like Solutions (2019)
Journal Article
Goncalves, W. D. G., Zanatta, M., Simon, N. M., Rutzen, L. M., Walsh, D. A., & Dupont, J. (2019). Efficient Electrocatalytic CO2 Reduction Driven by Ionic Liquid Buffer‐Like Solutions. ChemSusChem, 12(18), 4170-4175. https://doi.org/10.1002/cssc.201901076

We show here that electrocatalysis of CO2 reduction in aqueous electrolytes containing the ionic liquid (IL) 1-n-butyl-2,3dimethylimidazolium acetate ([BMMIm][OAc]) and dimethyl sulfoxide (DMSO) proceeds at low overpotentials (−0.9 V vs. Ag/AgCl) at... Read More about Efficient Electrocatalytic CO2 Reduction Driven by Ionic Liquid Buffer‐Like Solutions.

On the real catalytically active species for CO2 fixation into cyclic carbonates under near ambient conditions: dissociation equilibrium of [BMIm][Fe(NO)2Cl2] dependant on reaction temperature (2018)
Journal Article
Leu, M. K., Vicente, I., Fernandes, J. A., de Pedro, I., Dupont, J., Sans, V., …Cano, I. (2019). On the real catalytically active species for CO2 fixation into cyclic carbonates under near ambient conditions: dissociation equilibrium of [BMIm][Fe(NO)2Cl2] dependant on reaction temperature. Applied Catalysis B: Environmental, 245, 240-250. https://doi.org/10.1016/j.apcatb.2018.12.062

An imidazolium based iron-containing ionic liquid [BMIm][Fe(NO)2Cl2] (BMIm = 1-n-butyl-3-methyl-imidazolium) has been synthesized for the first time and fully characterized employing a wide range of techniques. The iron-based containing ionic liquid... Read More about On the real catalytically active species for CO2 fixation into cyclic carbonates under near ambient conditions: dissociation equilibrium of [BMIm][Fe(NO)2Cl2] dependant on reaction temperature.

Supramolecular interaction of non-racemic benzimidazolium based ion pairs with chiral substrates (2018)
Journal Article
Mumtaz, S., Cano, I., Mumtaz, N., Abbas, A., Dupont, J., & Gondal, H. Y. (2018). Supramolecular interaction of non-racemic benzimidazolium based ion pairs with chiral substrates. Physical Chemistry Chemical Physics, 20(32), 20821-20826. https://doi.org/10.1039/C8CP03881C

A series of novel benzimidazolium-based non-racemic ionic liquids (ILs) was synthesized from low–cost chiral terpenoid alcohols and fully characterized by the use of a wide variety of techniques, such as DSC, ESI-MS, ATR FT-IR, polarimetry as well as... Read More about Supramolecular interaction of non-racemic benzimidazolium based ion pairs with chiral substrates.

Challenging thermodynamics: hydrogenation of benzene to 1,3- cyclohexadiene by Ru@Pt nanoparticles (2016)
Journal Article
Weilhard, A., Abarca, G. A., Viscardi, J., Prechtl, M. H., Scholten, J. D., Bernandi, F., …Dupont, J. (in press). Challenging thermodynamics: hydrogenation of benzene to 1,3- cyclohexadiene by Ru@Pt nanoparticles. ChemCatChem, 9(1), https://doi.org/10.1002/cctc.201601196

Since the earliest reports on catalytic benzene hydrogenation, 1,3-cyclohexadiene and cyclohexene have been proposed as key intermediates. However, the former has never been obtained with remarkable selectivity. Herein we report the first partial hyd... Read More about Challenging thermodynamics: hydrogenation of benzene to 1,3- cyclohexadiene by Ru@Pt nanoparticles.

Catalytically active membrane-like devices: ionic liquid-hybrid organosilicas decorated with palladium nanoparticles (2016)
Journal Article
Luza, L., Rambor, C. P., Gual, A., Bernardi, F., Domingos, J. B., Thomas, G., …Dupont, J. (in press). Catalytically active membrane-like devices: ionic liquid-hybrid organosilicas decorated with palladium nanoparticles. ACS Catalysis, 6, https://doi.org/10.1021/acscatal.6b01813

Ionic liquid (IL)-hybrid organosilicas based on 1-n-butyl-3-(3-trimethoxysilylpropyl)-imidazolium cations associated with hydrophilic and hydrophobic anions decorated with well dispersed and similar sized (1.8–2.1 nm) Pd nanoparticles (Pd-NPs) are am... Read More about Catalytically active membrane-like devices: ionic liquid-hybrid organosilicas decorated with palladium nanoparticles.

Hybrid tantalum oxide nanoparticles from the hydrolysis of imidazolium tantalate ionic liquids: efficient catalysts for hydrogen generation from ethanol/water solutions (2016)
Journal Article
Souza, V. S., Scholten, J. D., Weibel, D. E., Eberhardt, D., Baptista, D. L., Teixeira, S. R., & Dupont, J. (2016). Hybrid tantalum oxide nanoparticles from the hydrolysis of imidazolium tantalate ionic liquids: efficient catalysts for hydrogen generation from ethanol/water solutions. Journal of Materials Chemistry A, 4, https://doi.org/10.1039/C6TA02114J

The reaction of equimolar amounts of 1-n-butyl-3-methylimidazolium chloride (BMI·Cl) or 1-n-decyl-3-methylimidazolium chloride (DMI·Cl) with TaCl5 affords imidazolium tantalate ionic liquids (ILs) BMI·TaCl61 and DMI·TaCl62. The hydrolysis of ILs 1 an... Read More about Hybrid tantalum oxide nanoparticles from the hydrolysis of imidazolium tantalate ionic liquids: efficient catalysts for hydrogen generation from ethanol/water solutions.