ListarIQ - Contribuciones a congresos científicos por tema "Electrospinning"
Mostrando ítems 1-11 de 11
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Alcohol decomposition on basic/acid lignin-derived submicron diameter carbon fibers
(2018-07-12)The use of lignin, the second most abundant polymer in nature, along with a simple and versatile technique, electrospinning, represents an advantageous and promising approach for the preparation of carbon fibers. In ... -
Effect of phosphorous groups on the stabilization and activation of low-cost lignin fibers prepared by electrospinning
(2013-11-25)The feasible wider use of carbon fibers in many of their current and potential applications demands a reduction of their manufacturing costs. In this sense, the use of lignin as an abundant, renewable and low-cost carbonaceous ... -
Electrospinning of alcell lignin for the preparation of ORR electrocatalysts
(2019-10-28)Carbon fibers are one of the components of the electrode assemblies used in fuel cells. They are usually prepared from polyacrylonitrile, a non-renewable synthetic polymer. Lignin is a highly abundant biopolymer that is ... -
Electrospun CuO/ZnO/ZrO2-ZSM-5 fibrillar bifunctional catalysts for the direct DME synthesis
(2019-06-28)A straightforward method for the preparation of CuO/ZnO/ZrO2-ZSM-5 fibrillar bifunctional catalysts, by using the electrospinning technique. The prepared fibers presented a high aspect ratio and a fairly good copper ... -
Electrospun iron-containing sustainable carbon submicron fibers as Fischer-Tropsch catalyst
(2023)The problems derived from fossil fuels usage such as climate change and energy crises have led to seek for alternatives. Biomass is a renewable source which can be used to produce fuels and olefins via Fischer-Tropsch from ... -
Fischer-Tropsch synthesis over lignin-derived cobalt-containing carbon fiber catalysts prepared in a single step by electrospinning
(2022)In the present, work submicron-sized cobalt-containing lignin fibers have been prepared by the electrospinning technique, using Alcell lignin as carbon precursor, a low-cost co-product of the paper making industry. ... -
Highly conductive microporous carbon fibers by electrospinning of lignin/phosphoric acid/ethanol solutions
(2019-11-06)This contribution reports the preparation of electrospun lignin-based carbon fibers at different carbonization temperatures and the influence of heat treatments at temperatures ranging from 900 to 1600 ºC. The influence ... -
In situ characterization of porous VPO catalysts with fibrous structure: Identifying the redox behavior and the stability of active sites
(2016-09-09)Two VPO materials with fibrillar morphology have been prepared by the aid of electrospinning technique. One is a VPO carbon-supported material (VCF200) with fibrous morphology and very high surface area that is stable under ... -
Modification of the morphology, porosity and surface chemistry of lignin-based electrospun carbon materials
(2019-06-27)Lignin is a biopolymer that can be found as the main component of plants. It is obtained as a coproduct in the papermaking and biofuel industries. Owing to its high carbon and aromatic content, high availability and reduced ... -
Novel lignin-based fibrous carbon materials
(2014-07-28)Lignin is (and will be) an important co-product in many lignocellulosic biomass-derived industries, such as pulp and paper mills (and the future biorefineries, when the concept of bio-economy be developed). The development ... -
Síntesis de Fischer-Tropsch sobre catalizadores de hierro disperso en fibras de zirconia obtenidas mediante la técnica de electrohilado
(2023)El uso de la biomasa a través de biorrefinerías se ha propuesto como alternativa a los recursos fósiles para obtener diferentes productos. En este sentido, la síntesis de Fischer-Tropsch (SFT) juega un papel fundamental. ...