Search Results - "Duarte, H.A."

Steam reforming of glycerol: Hydrogen production optimization by Sad, M.E., Duarte, H.A., Vignatti, Ch, Padró, C.L., Apesteguía, C.R.

“…The glycerol steam reforming reaction was studied using Pt-based catalysts in order to selectively produce hydrogen. The global steam reforming reaction is the…”
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Aqueous phase reforming of sorbitol on Pt/Al2O3: Effect of metal loading and reaction conditions on H2 productivity by Duarte, H.A., Sad, M.E., Apesteguía, C.R.

“…The production of hydrogen by aqueous phase reforming (APR) of sorbitol was studied on Pt-based catalysts at 498 K and 29.3 bar. Four alumina-supported Pt…”
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Production of bio-hydrogen by liquid processing of xylitol on Pt/Al2O3 catalysts: Effect of the metal loading by Duarte, H.A., Sad, M.E., Apesteguía, C.R.

“…The aqueous-phase reforming of xylitol to produce bio-hydrogen was studied on Pt/Al2O3 catalysts containing 0.30, 0.57, 1.50 and 2.77%wt Pt by varying the…”
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Bio-hydrogen production by APR of C2-C6 polyols on Pt/Al2O3: Dependence of H2 productivity on metal content by Duarte, H.A., Sad, M.E., Apesteguía, C.R.

“…[Display omitted] •The H2 productivity from APR of polyols C2-C6 on Pt/Al2O3 increases with %Pt.•The gaseous/liquid products ratio increases with the surface…”
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Selective synthesis of p-ethylphenol by gas-phase alkylation of phenol with ethanol by Sad, M.E., Duarte, H.A., Padró, C.L., Apesteguía, C.R.

“…•Zeolites HZSM5 and HMCM22 efficiently catalyze phenol ethylation.•Zeolite HMCM22 promotes the selective formation of p-ethylphenol.•Zeolite HMCM22 yields 41%…”
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Mechanism of anion retention from EXAFS and density functional calculations: arsenic (V) adsorbed on gibbsite by Ladeira, A.C.Q., Ciminelli, V.S.T., Duarte, H.A., Alves, M.C.M., Ramos, A.Y.

“…X-ray absorption fine structure spectroscopy and density functional calculations were used to determine the structural model of arsenic surface complex on…”
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Selective aerobic oxidation of benzyl alcohol on inexpensive and reusable ZnO/MnCO3 catalyst by Duarte, H.A., Luggren, P.J., Zelin, J., Sad, M.E., Díez, V.K., Di Cosimo, J.I.

“…The selective synthesis of benzaldehyde (B) by oxidation of benzyl alcohol (BA) was studied at 373 K using ZnO-MnCO3 catalysts, O2 as oxidant and mild reaction…”
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Purification of an iron contaminated vanadium solution through ion exchange resins by Vinco, J.H., Botelho Junior, A.B., Duarte, H.A., Espinosa, D.C.R., Tenório, J.A.S.

“…•A synthetic vanadium solution contaminated by iron was purified.•Adsorption of V and Fe was tested for three chelating and a strong cation resins.•An increase…”
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Highly hydrothermal stable carbon-coated Pt/SiO2 catalysts to produce hydrogen via APR of polyols by Duarte, H.A., Sad, M.E., Apesteguía, C.R.

“…[Display omitted] •High hydrothermal stability of (Pt/SiO2)-C6 during APR of polyols.•Its pore structure and Pt dispersion are not modified after 72-h APR…”
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Active species identification in Zn and Mn-based materials for application in alcohol oxidation reactions by Luggren, P.J., Duarte, H.A., Zelin, J., Sad, M.E., Díez, V.K., Di Cosimo, J.I.

“…[Display omitted] •Zn modified-MnCO3 catalysts with different Zn contents were prepared by an inexpensive and easily scalable impregnation method.•XRD and TPN2…”
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Methane C–H bond activation by niobium oxides: Theoretical analyses of the bonding and reactivity properties of Nbo m n + (m = 1, 2; n = 0, 1, 2) by de Almeida, K.J., Silva, T.C., Neto, J.L., Rocha, M.V.J., Ramalho, T.C., de Miranda, M.N., Duarte, H.A.

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Theoretical spectroscopic insights of tautomers and enantiomers of penicillamine by Mendes, J., de Almeida, K.J., Neto, J.L., Ramalho, T.C., Duarte, H.A.

“…B3LYP and MP2 calculations have been carried out to investigate tautomers and enantiomers of penicillamine (Pen). Their infrared (IR), ultraviolet (UV),…”
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Methane C–H bond activation by niobium oxides: Theoretical analyses of the bonding and reactivity properties of Nbomn+ (m = 1, 2; n = 0, 1, 2) by de Almeida, K.J., Silva, T.C., Neto, J.L., Rocha, M.V.J., Ramalho, T.C., de Miranda, M.N., Duarte, H.A.

“…The catalytic properties of NbOmn+ (m = 1, 2; n = 0, 1, 2) on the methane C–H bond activation were investigated using B3LYP and CCSD(T) calculations. The…”
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Organic Compounds as Effective Inhibitors for Hydrogen Permeation of Type 1010 Steel by Duarte, H.A., See, D.M., Popov, B.N., White, R.E.

“…INTRODUCTIONHydrogen accumulation in steel and other highstrength alloys increases the probability of cracking hazards.1-2 Hydrogen embrittlement (HE) occurs…”
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Selective lactose oxidation in aqueous-phase over Ag-Au bimetallic nanoparticles supported on Al2O3 under mild reaction conditions by Meyer, C.I., Regenhardt, S.A., Duarte, H.A., Zelin, J., Sebastian, V., Garetto, T.F., Marchi, A.J.

“…[Display omitted] •A bimetallic Au-Ag phase on Al2O3 can be obtained by precipitation-deposition at controlled pH.•Lactose oxidation rate and nanostructure of…”
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Experimental Critical Constants, Vapor Pressures, and Vapor and Liquid Densities for Pentafluoroethane (R-125) by Duarte-Garza, Horacio A, Stouffer, Carleton E, Hall, Kenneth R, Holste, James C, Marsh, Kenneth N, Gammon, Bruce E

“…This paper presents measurements of vapor pressure from 220 K to 338 K, liquid density from 180 K to 350 K and up to 70 MPa and vapor density from 310 K to 480…”
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Changes of local electronic structure of perfect (VO) 2P 2O 7( [formula omitted]) surface in response to oxygen vacancy formation: effect of electron trapping by Haras, A., Duarte, H.A., Salahub, D.R., Witko, M.

“…This paper reports theoretical calculations based on density functional theory applied to investigate how the formation of oxygen vacancies modify the…”
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Changes of local electronic structure of perfect (VO)2P2O7(100) surface in response to oxygen vacancy formation: effect of electron trapping by HARAS, A, DUARTE, H. A, SALAHUB, D. R, WITKO, M

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Subatmospheric vapor pressures evaluated from internal-energy measurements by DUARTE-GARZA, H. A, MAGEE, J. W

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Vapor Pressure, Vapor Density, and Liquid Density for 1,1-Dichloro-1-fluoroethane (R-141b) by Duarte-Garza, Horacio A, Hwang, Chih-An, Kellerman, Scott A, Miller, Reid C, Hall, Kenneth R, Holste, James C, Marsh, Kenneth N, Gammon, Bruce E

“…This paper presents measurements of vapor pressures from 250 K to 450 K, liquid densities from 180 K to 370 K at pressures up to 70 MPa, vapor densities at 400…”
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