Now showing items 1-10 of 5969
Strong hydrogen bonds in dicarboxylics acids and aromatics diamines.
(Soc Brasileira QuimicaSao PauloBrasil, 2000)
Ligações hidrogênio fortes em ácidos dicarboxílicos e diaminas aromáticasStrong hydrogen bonds in dicarboxylics acids and aromatics diamines
(Sociedade Brasileira de Química, 2000)
Changes on iron electrode surface during hydrogen permeation in borate buffer solution
(Pergamon-Elsevier B.V. Ltd, 2008-04-01)
Hydrogen interaction with oxide films grown on iron electrodes at open circuit potential (E-oc) and in the passive region (+0.30 V-ECS) was studied by chronopotentiometry, chronoamperometry and electrochemical impedance ...
The role of the titania and silica supports in Ru-Fe catalysts to partial hydrogenation of benzene
(Elsevier Science BvAmsterdamHolanda, 2003)
Quantum confinement in hydrogen bond
In this work, the quantum confinement effect is proposed as the cause of the displacement of the vibrational spectrum of molecular groups that involve hydrogen bonds. In this approach, the hydrogen bond imposes a space ...
Niobium hydrogenation process Effect of temperature and cooling rate from the hydrogenation temperature
(ELSEVIER SCI LTD, 2011)
High-purity niobium powder can be produced via the hydrogenation and dehydrogenation processes The present work aimed at the effect of temperature and cooling rate conditions on the niobium hydrogenation process using ...
Analysis of proton NMR in hydrogen bonds in terms of lone-pair and bond orbital contributions
NMR spectroscopic parameters of the proton involved in hydrogen bonding are studied theoretically. The set of molecules includes systems with internal resonance-assisted hydrogen bonds, internal hydrogen bonds but no ...
Liquid-phase transfer hydrogenation of furfural to furfuryl alcohol on Cu–Mg–Al catalysts
The liquid-phase transfer hydrogenation of furfural on Cu-based catalysts was studied. Catalysts were prepared by incipient wetness impregnation (Cu/SiO2) and co-precipitation (Cu–Mg–Al). The effect of metal-support ...
Liquid-phase transfer hydrogenation of furfural to furfuryl alcohol on Cu-Mg-Al catalysts
The liquid-phase transfer hydrogenation of furfural on Cu-based catalysts was studied. Catalysts were prepared by incipient wetness impregnation (Cu/SiO2) and co-precipitation (Cu-Mg-Al). The effect of metal-support ...
Electrocatalytic hydrogenation of acetophenone and benzophenone using palladium electrodes
(Pergamon-Elsevier Science Ltd, 2015-05)
We have studied the electrocatalytic hydrogenation of acetophenone and benzophenone using a) potentiometric titration of adsorbed hydrogen by the organic reactant in excess, b) electrochemical impedance spectroscopy at a ...