Now showing items 1-10 of 449290
Ánodos de Pt-Ru y Pt-Ir para Celdas de Combustible Alimentadas con Metano y Propano Directo
(Centro de Información Tecnológica, 2007)
Ethanol electro-oxidation over Pt(h k l): Comparative study on the reaction intermediates probed by FTIR and SFG spectroscopies
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
We have investigated the adsorbed intermediates of ethanol electro-oxidation at Pt(1 1 1), Pt(1 0 0) and Pt(1 1 0) using FTIR and SFG spectroscopies. Mainly, we focus on the CO formation. The aim of the present work is to ...
Ethanol oxidation reactions using SnO(2)@Pt/C as an electrocatalyst
(ELSEVIER SCIENCE BV, 2010)
This paper presents a study on the ethanol oxidation reaction using SnO(2)@Pt/C core-shell structures as electrocatalysts. All the materials used, including Pt/C and PtSn/C E-tek, were 20% (w/w) metal on carbon. The formation ...
Deep oxidation of propane on Pt-supported catalysts: Drastic turnover rate enhancement using zeolite supports
(Elsevier Science, 2004-03)
The combustion of propane was studied on Pt supported on MgO, alumina, and zeolites KL, HY, ZSM5 and Beta. Samples contained a similar amount of Pt, between 0.32 and 0.44%, and were characterized by employing a variety of ...
METHANOL ELECTRO-OXIDATION ON Pt-Rh ALLOYS IN ACID MEDIUM
(Sociedad Chilena de Química, 2001)
Three PT-symmetric Hamiltonians with completely different spectra
(Academic Press Inc Elsevier Science, 2015-12)
We discuss three Hamiltonians, each with a central-field part H0 and a PT-symmetric perturbation igz. When H0 is the isotropic Harmonic oscillator the spectrum is real for all g because H is isospectral to H0+g2/2. When ...
Oxygen reduction activity and methanol tolerance of carbon-supported PtV nanoparticles and the effects of heat treatment at low temperatures
This paper reports on oxygen reduction activity and methanol tolerance of PtV/C prepared by a polyol method and the effects of heat treatments in reducing environments at low temperatures (up to 300 °C). The as-prepared ...
Cyclic voltammetric and EQCM study of the behaviour and stability of Pt-Ir deposits and Pt-Ir wire electrodes for methanol electrooxidation in acid solution
(SOCIEDAD CHILENA DE QUIMICA, 2001-09)
The electro-oxidation of methanol at Pt-Ir and Pt deposits, and at Pt, Ir, and Pt-Ir wires in sulfuric acid solution was studied by cyclic voltammetry (CV), and in the case of Pt-Ir and Pt electrodeposits, also with the ...
n-Decane dehydrogenation on Pt, PtSn and PtGe supported on spinels prepared by different methods of synthesis
The catalytic performance of Pt, PtSn and PtGe supported on ZnAl2O4 obtained by mechanochemical synthesis (MS) or coprecipitation (COPR) is studied in the production of 1-decene from the n-decane dehydrogenation. The effect ...