Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Cinthia Alegre"'
Publikováno v:
Nanomaterials, Vol 14, Iss 1, p 14 (2023)
Atomically dispersed Fe-N-C catalysts for the oxygen reduction reaction (ORR) have been synthesized with a template-free method using carbon xerogels (CXG) as a porous matrix. The porosity of the CXGs is easily tunable through slight variations in th
Externí odkaz:
https://doaj.org/article/40fd565d05c54e2080a8b6fa9d75f1c7
Autor:
Nicolás Ignacio Villanueva-Martínez, Cinthia Alegre, David Sebastián, Nataly Orozco, María Jesús Lázaro
Publikováno v:
Catalysts, Vol 13, Iss 9, p 1240 (2023)
Manganese oxide nanowires (MONW) combined with carbon nanostructures were synthesized using three different carbon materials, and their effect on the activity towards Oxygen Reduction Reaction (ORR) and Oxygen Evolution Reaction (OER) was investigate
Externí odkaz:
https://doaj.org/article/ced3df5e674b49fe80cb73cee0e99fb5
Autor:
Cinthia Alegre, David Sebastián, María Jesús Lázaro, Mariarita Girolamo, Antonino Salvatore Aricò, Vincenzo Baglio
Publikováno v:
Catalysts, Vol 12, Iss 3, p 264 (2022)
In this work, carbon xerogels (CXGs) doped with nitrogen or sulfur have been investigated as DSSC counter electrodes. CXGs have been prepared by a sol–gel method from resorcinol and formaldehyde and subsequent carbonization. Nitrogen doping has bee
Externí odkaz:
https://doaj.org/article/171f698db86b4664a32c36b6c022cd63
Publikováno v:
Materials for Renewable and Sustainable Energy, Vol 7, Iss 2, Pp 1-10 (2018)
Abstract We report a facile synthetic method for the preparation of titanium–tantalum oxide by means of a modified Adam’s method. This new method allowed obtaining Ti0.8Ta0.2O2 with a high surface area (234 m2 g−1), to be used as catalyst suppo
Externí odkaz:
https://doaj.org/article/e7a5cce2a9b1403e83ccdd1331597c0f
Autor:
Carmelo Lo Vecchio, Cinthia Alegre, David Sebastián, Alessandro Stassi, Antonino S. Aricò, Vincenzo Baglio
Publikováno v:
Materials, Vol 8, Iss 12, Pp 7997-8008 (2015)
Next generation cathode catalysts for direct methanol fuel cells (DMFCs) must have high catalytic activity for the oxygen reduction reaction (ORR), a lower cost than benchmark Pt catalysts, and high stability and high tolerance to permeated methanol.
Externí odkaz:
https://doaj.org/article/5d2423d59a3443ffb6e67e3c7fddf908
Publikováno v:
Catalysts, Vol 5, Iss 1, Pp 392-405 (2015)
Platinum catalysts supported on carbon xerogel and carbon black (Vulcan) were synthesized with the aim of investigating the influence of the characteristics of the support on the electrochemical performance of the catalysts. Three synthesis methods w
Externí odkaz:
https://doaj.org/article/f934615ebf2e47879350c27144d15182
Autor:
Vincenzo Baglio, Rafael Moliner, Alessandro Stassi, María Jesús Lázaro, Antonino Salvatore Aricò, María Elena Gálvez, David Sebastián, Cinthia Alegre
Publikováno v:
Catalysts, Vol 3, Iss 3, Pp 744-756 (2013)
Highly porous carbon xerogels (CXGs) were synthesized to be used as support for PtRu nanoparticles. Metal particles were deposited on CXGs by means of the sulfite complex method for the first time. Catalysts so-obtained were submitted to thermal trea
Externí odkaz:
https://doaj.org/article/e3a565092ca449728e0d55dce2dfd9b1
Autor:
María Jesús Lázaro, Rafael Moliner, Elena Pastor, Juan Ignacio Pardo, Verónica Celorrio, Sara Pérez-Rodríguez, Isabel Suelves, David Sebastián, Cinthia Alegre, Laura Calvillo, María Elena Gálvez
Publikováno v:
Catalysts, Vol 3, Iss 3, Pp 671-682 (2013)
Different advanced nanostructured carbon materials, such as carbon nanocoils, carbon nanofibers, graphitized ordered mesoporous carbons and carbon xerogels, presenting interesting features such as high electrical conductivity and extensively develope
Externí odkaz:
https://doaj.org/article/e9b4904fa0fd4c658c910a653ce5b068
Autor:
María Jesús Lázaro, Rafael Moliner, María Elena Gálvez, Estela Baquedano, David Sebastián, Cinthia Alegre
Publikováno v:
Catalysts, Vol 2, Iss 4, Pp 466-489 (2012)
Carbon xerogels characterized by different textural, structural and chemical properties were synthesized and used as supports for Pt catalysts for the application in polymer electrolyte fuel cells. Synthesis conditions were varied in order to synthes
Externí odkaz:
https://doaj.org/article/59c64677663b4e4a867db4775357e1df
Autor:
Cinthia Alegre, David Sebastián, María E. Gálvez, Estela Baquedano, Rafael Moliner, Antonino S. Aricò, Vincenzo Baglio, María J. Lázaro
Publikováno v:
Materials, Vol 10, Iss 9, p 1092 (2017)
Durability and limited catalytic activity are key impediments to the commercialization of polymer electrolyte fuel cells. Carbon materials employed as catalyst support can be doped with different heteroatoms, like nitrogen, to improve both catalytic
Externí odkaz:
https://doaj.org/article/5ef6e73dcd3544319e21370fa3718ec6