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| 1 | Supporting IrO2 and IrRuOx nanoparticles on TiO2 and Nb-doped TiO2 nanotubes as electrocatalysts for the oxygen evolution reaction显示文摘IrO2 and IrRuOx(Ir:Ru 60:40 at%),supported by 50 wt%onto titania nanotubes(TNTs)and(3 at%Nb)Nb-doped titania nanotubes(Nb-TNTs),as electrocatalysts for the oxygen evolution reaction(OER),were synthesized and characterized by means of structural,surface analytical and electrochemical techniques.Nb doping of titania significantly increased the surface area of the support from 145(TNTs)to 260 m2g-1(Nb-TNTs),which was significantly higher than those of the Nb-doped titania supports previously reported in the literature.The surface analytical techniques showed good dispersion of the catalysts onto the supports.The X-ray photoelectron spectroscopy analyses showed that Nb was mainly in the form of Nb(IV)species,the suitable form to behave as a donor introducing free electrons to the conduction band of titania.The redox transitions of the cyclic voltammograms,in agreement with the XPS results,were found to be reversible.Despite the supported materials presented bigger crystallite sizes than the unsupported ones,the total number of active sites of the former was also higher due to their better catalyst dispersion.Considering the outer and the total charges of the cyclic voltammograms in the range 0.1–1.4 V,stability and electrode potentials at given current densities,the preferred catalyst was Ir O2 supported on the Nb-TNTs.The electrode potentials corresponding to given current densities were between the smallest ones given in the literature despite the small oxide loading used in this work and its Nb doping,thus making the Nb-TNTs-supported IrO2 catalyst a promising candidate for the OER.The good dispersion of IrO2,high specific surface area of the Nb-doped supports,accessibility of the electroactive centers,increased stability due to Nb doping and electron donor properties of the Nb(IV)oxide species were considered the main reasons for its good performance. | Radostina V.Genova-Koleva Francisco Alcaide Garbine Alvarez Pere L.Cabot Hans-Jürgen Grande María V.Martínez-Huerta Oscar Miguel | 2019 | Journal of Energy Chemistry2019，28，7： | 2 |
| 2 | Electrochemical performance of low temperature PEMFC with surface tailored carbon nanofihcrs as catalyst support 显示文摘 | GARBINE ALVAREZ FRANCISCO ALCAIDE PERE L | 2012 | International Journal of Hydrogen Energy2012，37，1： | 1 |
| 3 | A small - scale flow alkaline fuel cell for on - site production of hydrogen peroxide 显示文摘 | Enric Bfillas Francisco Alcaide Pere - Llu's Cabot | 2002 | Electrochimica Acta2002，48，4： | 1 |
| 4 | A Comparative Analysis of Vessels Detained under the PSC Agreements of Paris, Tokyo and Vina del Mar显示文摘 | Francisco Piniella Emilio Rodriguez-Diaz Juan Ignacio Alcaide | 2014 | Journal of Shipping and Ocean Engineering2014，4，11： | 0 |
| 5 | Adaptive evolution of chestnut forests to the impact of ink disease in Spain显示文摘Phytophthora cinnamomi(Pc)is an extremely destructive soil-borne pathogen of Asiatic origin responsible for“ink disease”in chestnut.This work assesses the adaptive potential to the impact of Pc of four Spanish populations of Castanea sativa undergoing different selection pressures.To explore the evolvability of C.satiVa to Pc in the selected populations,parameters obtained from neutral and functional genetic diversity were compared with estimates of quantitative genetic variability.Nine expressed sequence tags-simple sequence repeat(EST-SSR)markers were selected and their transferability and polymorphism in 137 C.sativa individuals were evaluated.To test the potential of EST-SSR markers for early selection of Pc tolerant plant material,the offspring of selected individuals were challenged with Pc.Expressed sequence tags-simple sequence repeat markers and seedling life expectancy after Pc inoculation revealed significant different responses of C.sativa populations to Pc.The genetic variability observed within populations showed the potential response capacity of Spanish C.sativa populations to undergo fast adaptive evolution.The heritability value obtained for the “life expectancy”variable(h^2=0.21±0.11)indicated that selection for resistance to Pc is possible.Genetic patterns reflected two evolutionarily meaningful groupings of populations,corresponding to the different selective pressure of the oomycete between sites.The differentiation coefficient obtained through markers classified as under neutral selection(FST=0.185)was lower than the quantitative genetic differentiation of“life expectancy”between C.sativa populations(QST=0.682),providing evidence that selection acted spatially in a heterogeneous manner.A first link has been identified in trees between population structure and adaptive responses to pathogen-induced selection.The study identified one marker under positive selection that could be used in marker assisted selection to predict resistance to Pc in non-inoculated C.sativa trees. | Francisco Alcaide Alejandro Solla Marcello Cherubini Claudia Mattioni Beatriz Cuenca Alvaro Camisón M.Angela Martín | 2020 | Journal of Systematics and Evolution2020，58，4： | 0 |
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