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Karla Vega-Granados Yadira Gochi-Ponce Nicolas Alonso-Vante 《Current Opinion in Electrochemistry》2022
The use of single-atom metals (SAM) as catalysts of energy conversion reactions is a recent topic, which has gained popularity in the last two decades. Transition metal dichalcogenides emerged as important electrocatalysts since it was discovered that their chalcogenide edge sites are active towards the electrocatalytic hydrogen evolution reaction (HER) and could also serve as supports for other metals within the same applications. Currently, several groups have reported a novel metal?chalcogenide arrangement, with the possibility of isolating metals at specific sites on chalcogenides to enhance their properties resulting in a synergistic effect in which both chalcogenide and single-atom metal features are exploited, either as promoters or active sites. Theoretical studies have been the basis of these reports. 相似文献
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Moreno-Valle Bibiana Alatorre-Barajas José A. Gochi-Ponce Yadira Alcántar-Zavala Eleazar Rivera-Lugo Yazmín Yorely Montes-Ávila Julio Trujillo-Navarrete Balter Alonso-Núñez Gabriel Reynoso-Soto Edgar A. Ochoa-Terán Adrián 《Journal of nanoparticle research》2020,22(11):1-17
Journal of Nanoparticle Research - The electronic and optical properties of the iron-doped bismuth nanoclusters having less than 15 atoms are presented here. This doping is especially interesting... 相似文献
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J.R.Rodriguez R.M.Félix E.A.Reynoso Y.Gochi-Ponce Y.Verde Gómez S.Fuentes Moyado G.Alonso-Núez 《天然气化学杂志》2014,(4):483-490
This work reports a feasible synthesis of highly-dispersed Pt and Pt-Fe nanoparticles supported on multiwall carbon nanotubes (MWCNTs) without Fe and multiwall carbon nanotubes with iron (MWCNTs-Fe) which applied as electrocatalysts for methanol electrooxidation. A Pt coordination complex salt was synthesized in an aqueous solution and it was used as precursor to prepare Pt/MWCNTs, Pt/MWCNTs-Fe, and Pt-Fe/MWCNTs using FeC12.4H20 as iron source which were named S 1, S2 and S3, respectively. The coordination complex of platinum (TOA)2PtC16 was obtained by the chemical reaction between (NH4)2PtC16 with tetraoctylammonium bromide (TOAB) and it was characterized by FT-IR and TGA. The materials were characterized by Raman spectroscopy, SEM, EDS, XRD, TEM and TGA. The electrocatalytic activity of Pt-based supported on MWCNTs in the methanol oxidation was investigated by cyclic voltammetry (CV) and chronoamperometry (CA). Pt-Fe/MWCNTs electrocatalysts showed the highest electrocatalytic activity and stability among the tested electrocatalysts due to that the addition of "Fe" promotes the OH species adsorption on the electrocatalyst surface at low potentials, thus, enhancing the activity toward the methanol oxidation reaction (MOR). 相似文献
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