Listar IQ - Artículos por fecha de publicación
Mostrando ítems 1-20 de 50
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Hierarchical porous carbons by liquid phase impregnation of zeolite templates with lignin solution
(ELSEVIER, 2014-05-09)Templated carbon materials (TCs) with hierarchical pore structure were obtained by liquid phase impreg- nation of different zeolite templates using Alcell lignin solutions as carbon precursor. The effect of synthesis ... -
Preparation of different carbon materials by thermochemical conversion of lignin.
(Frontiers, 2014-12-04)Lignin valorization plays a crucial role within the modern biorefinery scheme from both the economic and environmental points of view; and the structure and composition of lignin makes it an ideal precursor for the preparation ... -
Carbon/H-ZSM-5 composites as supports for bi-functional Fischer-Tropsch synthesis catalysts
(Royal Society of Chemistry, 2016)Mesoporous H-ZSM-5–carbon composites, prepared via tetrapropylammonium hydroxide (TPAOH) post treatment of H-ZSM-5 followed by deposition of pyrolytic carbon, have been used as the support for the preparation of Co-based ... -
Role of surface phosphorus complexes on the oxidation of porous carbons.
(Elsevier, 2016-12-14)Chemical activation of olive stone with phosphoric acid produces activated carbons with relatively high content of P surface groups that remain very stable on the carbon surface at relatively high temperatures. Changes in ... -
Phosphorus-containing mesoporous carbon acid catalyst for methanol dehydration to dimethyl ether.
(ACS Publications, 2019-02-14)Catalytic dehydration of methanol on an acid carbon catalyst prepared by chemical activation of olive stone with H3PO4 is reported. This preparation methodology produces carbons with a well-developed porous texture and ... -
Electrodialytic processes in solid matrices. New insights into batteries recycling. A review.
(2019-02-26)Electrodialytic Remediation has been widely applied to the recovery of different contaminants from numerous solid matrices solving emerging issues of environmental concern. Results and conclusions reported in studies about ... -
The fascinating effect of niobium as catalytic promoting agent.
(Elsevier, 2019-04-20)Niobium is a very important element in catalysis, active component of many catalytic systems. But it is not only a major component in many catalytic systems; in addition, it is usually used as a key promoter, because it ... -
Activation of electrospun lignin-based carbon fibers and their performance as self-standing supercapacitor electrodes
(Elsevier, 2020)The production and activation of self-standing carbon electrodes from electrospun lignin fibers was analyzed in this work. Carbon microfibers were prepared at 900 °C from air-stabilized spun cloths by direct carbonization ... -
Chemical reduction of nitrate by zero-valent iron: Shrinking-Core versus Surface Kinetics Models
(MDPI, 2020-02-12)Zero valent iron (ZVI) is being used in permeable reactive barriers (PRB) for the removal of oxidant contaminants, from nitrate to chlorinated organics. A sound design of these barriers requires a good understanding of ... -
Activation of electrospun lignin-based carbon fibers and their performance as self-standing supercapacitor electrodes
(2020-02-17)The production and activation of self-standing carbon electrodes from electrospun lignin fibers was analyzed in this work. Carbon microfibers were prepared at 900 °C from air-stabilized spun cloths by direct carbonization ... -
Modeling of Electrokinetic Remediation Combining Local Chemical Equilibrium and Chemical Reaction Kinetics
(2020-02-24)A mathematical model for reactive-transport processes in porous media is presented. The modeled system includes diffusion, electromigration and electroosmosis as the most relevant transport mechanism and water electrolysis ... -
Operando Reactor-Cell with Simultaneous Transmission FTIR and Raman Characterization (IRRaman) for the Study of Gas-Phase Reactions with Solid Catalysts.
(American Chemical Society, 2020-03-10)Raman and transmission FTIR spectroscopic techniques have been coupled in a new homemade reactor-cell designed in a joint CSIC–LCS collaboration. The setup is easily adapted to any FTIR and fiber-coupled Raman spectrometers ... -
Recovery of Li and Co from LiCoO2 via Hydrometallurgical–Electrodialytic Treatment
(MDPI, 2020-03-27)Lithium-ion batteries play an important role in our modern society as the main option to power portable electronic devices and electric vehicles. The growing demand for these batteries encourages the development of more ... -
Rapid scan FTIR reveals propane (am)oxidation mechanisms over vanadium based catalysts.
(Elsevier, 2020-08-06)Rapid scan FTIR coupled with Mass Spectrometry (MS) has been used to determine the role of spectroscopically observed species in the reaction media during propane dehydrogenation over a V/Al catalyst, and propane ammoxidation ... -
Hydrometallurgical extraction of Li and Co from LiCoO2 particles–Experimental and Modeling
(MDPI, 2020-09-13)The use of lithium-ion batteries as energy storage in portable electronics and electric vehicles is increasing rapidly, which involves the consequent increase of battery waste. Hence, the development of reusing and recycling ... -
Sequential extraction procedure: a versatile tool for environmental research
(CISA publisher, 2020-12-28)The sequential extraction procedure as a tool to assess the environmental risk of metals in solid matrices has been widely studied. In this work, other promising application of these methods is proposed: the evaluation of ... -
Valorization of lemon peel waste as biosorbent for the simultaneous removal of nickel and cadmium from industrial effluents
(elsevier, 2021)The valorization of agricultural waste as biosorbent requires studies dealing with aqueous systems containing coexisting heavy metals. Batch adsorption experiments were carried out to study the competitive biosorption of ... -
Isotopic study of the influence of oxygen interaction and surface species over different catalysts on the soot removal mechanism
(Elsevier, 2021)In order to improve the catalytic formulations for soot removal in after-treatment emission control technologies for gasoline and diesel engine vehicle, an isotopic study was approached using transitory labeled oxygen ... -
Carbon-based materials as Catalyst Supports for Fischer–Tropsch Synthesis: a review
(Frontiers, 2021-02-04)The use of carbon-based materials as catalyst supports for Fischer–Tropsch synthesis (FTS) is thoroughly reviewed. The main factors to consider when using a carbonaceous catalyst support for FTS are first discussed. Then, ...