Jordi Sans
Polytechnic University of Catalonia
Polarization (waves)Surface modificationCubic zirconiaMethacrylateCeramicNitrogenaseWater vaporCopolymerComposite materialCatalysisHeterogeneous catalysisInorganic chemistryChemistryNanoreactorMaterials scienceCarbon fixationPolarization (electrochemistry)Combinatorial chemistryBrushiteCondensed matter physicsAcrylate polymerHydrothermal synthesisPhosphateLayer (electronics)EthanolZirconyl chlorideATMPAnisotropic growthGreen productionHighly selectiveBond cleavageElectrocatalystWater splittingChemical engineeringPhase (matter)CrystallinityAssociative substitutionCompact discHydrogenPolymerElectrochemistryCarbon dioxideNitrogenYield (chemistry)Electric fieldReaction mechanismPhotocatalysisAdhesiveArtificial photosynthesisMicrostructure
9Publications
2H-index
14Citations
Publications 9
Newest
#1Jordi SansH-Index: 2
Last. Carlos AlemánH-Index: 56
view all 6 authors...
Conversion of CO2 into valuable chemicals is not only a very challenging topic but also a socially demanding issue. In this work, permanently polarized hydroxyapatite obtained using a thermal stimulated polarization process is proposed as a highly selective catalyst for green production of ethanol starting from CO2 and CH4.
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#1Jordi Sans (UPC: Polytechnic University of Catalonia)H-Index: 2
#2Marc Arnau (UPC: Polytechnic University of Catalonia)
Last. Carlos Alemán (UPC: Polytechnic University of Catalonia)H-Index: 56
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#1Jordi Sans (UPC: Polytechnic University of Catalonia)H-Index: 2
#2Vanesa SanzH-Index: 16
Last. Carlos Alemán (UPC: Polytechnic University of Catalonia)H-Index: 56
view all 6 authors...
Abstract The enhanced catalytic activity of permanently polarized hydroxyapatite, which is achieved using a thermally stimulated polarization process, largely depends on both the experimental conditions used to prepare crystalline hydroxyapatite from its calcium and phosphate precursors and the polarization process parameters. A mineral to brushite, which is an apatitic phase that can evolve to hydroxyapatite, is found at the surface of highly crystalline hydroxyapatite. It appears after chemica...
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#1Ludmila Hodasova (UPC: Polytechnic University of Catalonia)H-Index: 1
#2Jordi Sans (UPC: Polytechnic University of Catalonia)H-Index: 2
Last. Elaine Armelin (UPC: Polytechnic University of Catalonia)H-Index: 32
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Abstract Herein, for the first time is described the design of a novel porous zirconia scaffolds manufactured by using polymer-infiltrated ceramic network (PICN) and 3D-printing technologies. Cubic geometry of pieces was obtained by perpendicular layer-by-layer deposition of yttrium-stabilized tetragonal zirconia polycrystal (3Y-TZP) and Pluronic® hydrogel ceramic paste. The specimens were prepared by robocasting assembly with 50% infill and 50% of pores, as feed setup. Bisphenol A glycerolate d...
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#1Jordi Sans (UPC: Polytechnic University of Catalonia)H-Index: 2
#2Vanesa SanzH-Index: 16
Last. Carlos Alemán (UPC: Polytechnic University of Catalonia)H-Index: 56
view all 5 authors...
The synthesis of hydroxyapatite (HAp) with different shapes and sizes has attracted increasing attention because the applicability of this ceramic material depends on structure-properties relations...
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#1Jordi Sans (UPC: Polytechnic University of Catalonia)H-Index: 2
#2Elaine Armelin (UPC: Polytechnic University of Catalonia)H-Index: 32
Last. Carlos Alemán (UPC: Polytechnic University of Catalonia)H-Index: 56
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Abstract The electrophotocatalytic synthesis of Glycine and Alanine from a simple gas mixture containing N2, CO2, CH4 and H2O under mild reaction conditions (95 °C and 6 bar) was recently developed using a catalyst formed by permanently polarized hydroxyapatite, which is achieved using a thermally stimulated polarization process, coated with two layers of aminotris(methylenephosphonic acid) (ATMP) separated by an intermediate layer of zirconyl chloride (ZC). This work reports the optimization of...
1 CitationsSource
#1Guillermo Revilla-López (UPC: Polytechnic University of Catalonia)H-Index: 10
#2Jordi Sans (UPC: Polytechnic University of Catalonia)H-Index: 2
Last. Carlos Alemán (UPC: Polytechnic University of Catalonia)H-Index: 56
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Abstract The processes related to the fixation of nitrogen in a catalyst able to produce glycine and alanine from a N2, CO2 and CH4 gas mixture at mild reaction conditions have been studied by combining experimental and theoretical investigations. Results have allowed to understand the role of different elements of the catalyst, which is constituted by permanently polarized hydroxyapatite (p-HAp), zirconia, and aminotris(methylenephosphonic acid) (ATMP). ATMP attracts N2 molecules towards the su...
1 CitationsSource
#1Jordi Sans (UPC: Polytechnic University of Catalonia)H-Index: 2
#2Jordi Llorca (UPC: Polytechnic University of Catalonia)H-Index: 70
Last. Carlos Alemán (UPC: Polytechnic University of Catalonia)H-Index: 56
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Semipermanently polarized hydroxyapatite, named SP/HAp(w), is obtained by applying a constant dc electric field of 1–10 kV/cm at 300–850 °C to the samples previously sintered in water vapor, while permanently polarized hydroxyapatite, PP/HAp(a), is produced by applying a dc electric field of 3 kV/cm at 1000 °C to the samples sintered in air. SP/HAp(w) has been used for biomedical applications, while PP/HAp(a) has been proved to be a valuable catalyst for N2 and CO2 fixation. In this work, struct...
4 CitationsSource
#1Jordi Sans (UPC: Polytechnic University of Catalonia)H-Index: 2
#2Lluís Soler (UPC: Polytechnic University of Catalonia)H-Index: 24
Last. Jordi Llorca (UPC: Polytechnic University of Catalonia)H-Index: 70
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A commercial compact disk has been converted into an effective photocatalytic nanoreactor by depositing a catalyst layer inside the nanochannels by means of an electrophoretic method. The resultant device has been tested for water splitting, obtaining a high yield of hydrogen at an unbeatable low cost.
2 CitationsSource