Results 11 to 20 of about 45,594 (224)

Materiales microporoso germanatos, como catalizadores [PDF]

, 2002
Referencia OEPM: P9900953.-- Fecha de solicitud: 07/05/1999.-- Titular: Consejo Superior de Investigaciones Científicas (CSIC).
Iglesias, Marta, Cascales, Concepción, Gutiérrez-Puebla, Enrique, Monge, M. Ángeles, Ruíz Valero, Caridad   +4 more
openaire   +2 more sources

Diseño computacional de catalizadores biológicos [PDF]

, 2011
Enzymes are a source of inspiration for the design of new and powerful industrial catalysts able to work, in principle, in mild conditions of pressure, temperature and solvents. The Transition State of the reaction is the keystone to understand how enzymes are able to speed up reactions. This information can be then employed to design protein
Martí Forés, Sergio, Moliner, Vicent, Andres, Juan, Roca, Maite, López Canut, Violeta, Silla, Estanislao, Tuñón, Iñaki, Bertrán, Juan   +7 more
openaire   +3 more sources

Full-Solution Processed Halide Perovskite Photoanodes with Carbon/NiFe-LDH Protection for Efficient Photoelectrochemical Water Oxidation. [PDF]

Small
Solution‐processed photoelectrodes for the oxygen evolution reaction in water splitting are fabricated by using hybrid perovskite as the active layer, carbon electrodes, and NiFe‐LDH catalyst as protective and catalyst layers, respectively. The device showed an 18.07 mA cm−2 photocurrent density and an 8.51% ABPE.
Velásquez CA, Patiño JJ, Ballestas K, Jaramillo F, Montoya JF, Ramírez D.   +5 more
europepmc   +2 more sources

Critical Factors Affecting the Selective Transformation of 5-Hydroxymethylfurfural to 3-Hydroxymethylcyclopentanone Over Ni Catalysts. [PDF]

ChemSusChem
While HCPN emerged as the primary product, the reaction rate and products distribution during the aqueous‐phase HMF hydrogenation over Ni‐supported catalysts were influenced by the acid properties of the catalytic system, the structural properties and hydrothermal stability of the support, as well as the purity level of the HMF feedstock.
Morales MV, Conesa JM, Campos-Castellanos E, Guerrero-Ruiz A, Rodríguez-Ramos I.   +4 more
europepmc   +2 more sources

Detecting spatial economic clusters using kernel density and global and local Moran's I analysis in Ekurhuleni metropolitan municipality, South Africa

Regional Science Policy &Practice, Volume 14, Issue 2, Page 307-327, April 2022., 2022
Abstract Agglomeration economies are credited for providing the needed catalyst for economic growth and development. This paper uses approximately 14,000 firm‐level data and employs several spatial data analysis approaches to examine evidence of types of spatial sectoral clusters and their footprints in Ekurhuleni Metropolitan Municipality, a major ...
Koech Cheruiyot
wiley   +1 more source

INSURGENCY AND AMERICAN FOREIGN POLICY: The Case of George McGovern

World Affairs, Volume 180, Issue 2, Page 32-61, June 2017., 2017
As a distinct foreign‐policy group, neoconservatives emerged in a period of social unrest and political cynicism—a time when insurgent presidential candidates can have profound effects on the outlook and conduct of foreign policy. The George McGovern insurgency is an important historical event that was accompanied by social unrest, distrust in ...
Roberta N. Haar
wiley   +1 more source

Synthesis of High cis‐Polybutadiene in Styrene Solution with Neodymium‐Based Catalysts: Towards the Preparation of HIPS and ABS via In Situ Bulk Polymerization

International Journal of Polymer Science, Volume 2016, Issue 1, 2016., 2016
In a first step, 1,3‐butadiene was selectively polymerized at 60°C in styrene as solvent using NdV3/DIBAH/EASC as the catalyst system. The catalyst system activation process, the addition order of monomers and catalyst components, and the molar ratios [Al]/[Nd] and [Cl]/[Nd] were studied.
Ramón Díaz de León, Florentino Soriano Corral, Francisco Javier Enríquez-Medrano, Gabriela Bosques Ibarra, Patricia de León Martínez, Francisco Hernández Gámez, Héctor Ricardo López-González, Luis Francisco Ramos de Valle, Atsushi Sudo   +8 more
wiley   +1 more source

Síntesis y caracterización de los sistemas ácidos WO3/ZrO2 y WO3/TiO2 aplicados en la hidratación de etileno a etanol

Revista Ion, 2018
Este trabajo se enfoca en la síntesis y la caracterización de dos sistemas ácidos obtenidos por el método de impregnación húmeda incipiente, partiendo de una sal de tungsteno y empleando a los óxidos metálicos ZrO2 y TiO2 como soportes. Los dos sistemas
Juan Carlos Salazar, Mario A. Llano, Julián D. Urresta   +2 more
doaj   +1 more source

Mecanismos de desactivación de catalizadores heterogéneos

Mundo Nano. Revista Interdisciplinaria en Nanociencias y Nanotecnología, 2020
La desactivación catalítica es un problema serio en las diferentes secciones del proceso de refinación del petróleo, que causa la pérdida de actividad catalítica con respecto al tiempo de operación. La presente revisión está enfocada en los mecanismos de desactivación de catalizadores, tales como envenenamiento, ensuciamiento, degradación térmica y ...
José Gabriel Téllez Romero, P. Sarabia-Bañuelos, S. Hernández-González, V. A. Nolasco-Arizmendi   +3 more
openaire   +3 more sources

KnowCat: Catalizador de Conocimiento

, 2001
KnowCat is a distributed non-supervised system for structuring knowledge. KnowCat stands for "Knowledge Catalyser" and its purpose is enabling the crystallisation of collective knowledge as the result of user interactions. One of the applications of the system is the generation of quality educational materials as the automatic result of student ...
Cobos Pérez, Ruth, Alamán Roldán, Xavier, Esquivel, José A.   +2 more
openaire   +2 more sources