Results 51 to 60 of about 115,739 (285)

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Transient Charging of Mixed Ionic‐Electronic Conductors by Anomalous Diffusion

Advanced Materials, EarlyView.
This article explores charge transport in mixed ionic‐electronic conductors (MIECs) through electrochemical impedance spectroscopy and transient current analysis. Focusing on PEDOT:PSS, WO3, and n‐doped PBDF, it uncovers the impact of anomalous diffusion via fractional modeling. The study reveals key correlations that deepen understanding and guide the
Heyi Zhang, Gonzalo Rivera‐Sierra, Shirin Siahjani‐Gultekin, Jenifer Rubio‐Magnieto, Anis Allagui, Ignacio Sanjuán, David Franco, Antonio Guerrero, Enrique H. Balaguera, Juan Bisquert   +9 more
wiley   +1 more source

Potenciales plaguicidas amigables: sintesis de bajo impacto ambiental de heterociclos con subestructura de cromona [PDF]

, 2015
El uso de plaguicidas sintéticos ha generado una serie de efectos adversos tanto sobre el ambiente como la salud humana. Por ello resulta necesario considerar diferentes tácticas de control de plagas, incluyendo el uso de compuestos selectivos y ...
Autino, Juan Carlos, Bernio, Flavia, Pasquale, Gustavo A., Romanelli, Gustavo Pablo, Ruiz, Diego Manuel, Sanchez, Laura Mabel, Sathicq, Angel Gabriel   +6 more
core   +2 more sources

Oxygen vacancies in strained SrTiO$_{3}$ thin films: formation enthalpy and manipulation [PDF]

, 2017
We report the enthalpy of oxygen vacancy formation in thin films of electron-doped SrTiO$_{3}$, under different degrees of epitaxial stress. We demonstrate that both compressive and tensile strain decrease this energy at a very similar rate, and promote ...
Iglesias, L., Magen, C., Rivadulla, F., Sarantopoulos, A.   +3 more
core   +6 more sources

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

Advanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi, Mario Palacios‐Corella, Arjan Mol, Salvador Pané, Josep Puigmartí‐Luis   +4 more
wiley   +1 more source

A preliminary study on electrocatalytic reduction of CO2 using FAC-ReI(CO)3(4,4′-dimethyl-2,2′-bipyridyl)((E)-2-((3-amino-pyridin-4-ylimino)-methyl)-4,6-DI-tert-butylphenol))+ complex [PDF]

, 2017
Indexación: Scopus.Several research to explore the possible conversion of CO2 using rhenium(I) tricarbonyl complexes have been reported the last years.
Canales, J.C., Carreño, A., Chávez, I., Manríquez, J.M., Oyarzún, D.   +4 more
core  

Counterintuitive Fluorescence Blue Shift in Symmetry Breaking Dicationic Bis(indolium) with Two‐Photon Absorption Properties for NIR Living Cell Imaging

Advanced Materials, EarlyView.
Highly water‐soluble dicationic bis(indolium) dyes have been prepared, showing excellent two‐photon absorption and light emission. Their fluorescence behavior discloses an unusual increasing blue shift with increasing solvent polarity, which, in parallel, is beneficial for enhanced detection in biological media.
Carlos Benitez‐Martin, Jose M. Marin‐Beloqui, Juan T. López Navarrete, Juan Casado, Francisco Najera, Ezequiel Perez‐Inestrosa   +5 more
wiley   +1 more source

Strontium hexaferrite platelets: a comprehensive soft X-ray absorption and Mössbauer spectroscopy study

Scientific Reports, 2019
Platelets of strontium hexaferrite (SrFe12O19, SFO), up to several micrometers in width, and tens of nanometers thick have been synthesized by a hydrothermal method.
G. D. Soria, P. Jenus, J. F. Marco, A. Mandziak, M. Sanchez-Arenillas, F. Moutinho, J. E. Prieto, P. Prieto, J. Cerdá, C. Tejera-Centeno, S. Gallego, M. Foerster, L. Aballe, M. Valvidares, H. B. Vasili, E. Pereiro, A. Quesada, J. de la Figuera   +17 more
doaj   +1 more source

Crystal structure of N,N′-bis[(pyridin-4-yl)methyl]naphthalene diimide

Acta Crystallographica Section E, 2014
In the centrosymmetric title compound, C26H16N4O4 {systematic name: 6,13-bis[(pyridin-4-yl)methyl]-6,13-diazatetracyclo[6.6.2.04,16011,15]hexadeca-1,3,8,10,15-pantaene-5,7,12,14-tetrone}, the central ring system is essentially planar [maximum deviation =
Mariana Nicolas-Gomez, Diego Martínez-Otero, Alejandro Dorazco-González   +2 more
doaj   +1 more source

Synthesis, experimental and theoretical characterization of m-fluorosulfinylaniline [PDF]

, 2015
The synthesis of m-fluorosulfinylaniline together with a tentative assignment of the vibrational, NMR and mass spectra are reported. Quantum chemical calculations predict two stable conformers, with very similar energies, both of which possess in the ...
Chemes, Doly María, Cutin, Edgardo Hugo, Oberhammer, Heinz, Paez Jerez, Ana Laura, Robles, Norma Lis   +4 more
core   +2 more sources