Browsing Artículos by Author "Doppiu, Stefania"
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Effect of atomic substitution on the sodium manganese ferrite thermochemical cycle for hydrogen production
Torre, Francesco; Aguilar Sánchez, Teresa; Doppiu, Stefania; Oregui Bengoechea, Mikel; Arias Ergueta, Pedro Luis; Palomo del Barrio, Elena (Elsevier, 2022-10)This work presents the effect of atomic substitution on the MnFe2O4-Na2CO3 thermochemical cycle for H-2 production. The non-oxidative decarbonation/carbonation reaction of the MnFe2O4-Na2CO3 mixture is investigated as the ... -
Li4(OH)3Br-Based Shape Stabilized Composites for High-Temperature TES Applications: Selection of the Most Convenient Supporting Material
Mahroug, Imane; Doppiu, Stefania; Dauvergne, Jean-Luc; Serrano, Ángel; Palomo del Barrio, Elena (MDPI, 2021-05-13)Peritectic compound Li4(OH)3Br has been recently proposed as phase change material (PCM) for thermal energy storage (TES) applications at approx. 300 °C Compared to competitor PCM materials (e.g., sodium nitrate), the main ... -
NPG–TRIS Thermal Storage System. Quantification of the Limiting Processes: Sublimation and Water’s Adsorption
De La Pinta Alonso, Noelia; Santos Moreno, Sergio; Doppiu, Stefania; Igartua Aldamiz, Josu Mirena ; Palomo del Barrio, Elena; López, Gabriel Alejandro (MDPI, 2021-10-05)The NPG–TRIS binary system (NPG = (CH3)2C(CH2OH)2 = 2,2-dimetyl-1,3-propanodiol; TRIS = NH2C(CH2OH)3 = 2-Amino-2-(hydroxymethyl)-1,3-propanediol) was intensively investigated as a thermal energy storage system, due to the ... -
Sodium Manganese Ferrite Water Splitting Cycle: Unravelling the Effect of Solid–Liquid Interfaces in Molten Alkali Carbonates
Udaeta Gordón, Joseba; Oregui Bengoechea, Mikel; Torre, Francesco; Uranga, Nerea; Hernáiz, Marta; Lucio Castillero, Beatriz; Arias Ergueta, Pedro Luis; Palomo del Barrio, Elena; Doppiu, Stefania (ACS, 2024-06)In this work, the Na2CO3 of the sodium manganese ferrite thermochemical cycle was substituted by different eutectic or eutectoid alkali carbonate mixtures. Substituting Na2CO3 with the eutectoid (Li0.07Na0.93)2CO3 mixture ... -
Study of the Phase Transitions in the Binary System NPG-TRIS for Thermal Energy Storage Applications
Santos-Moreno, Sergio; Doppiu, Stefania; López, Gabriel Alejandro ; Marinova, Nevena; Serrano, Ángel; Silveira, Elena; Palomo del Barrio, Elena (MDPI, 2020-03-05)Neopentylglycol (NPG) and tris(hydroxymethyl)aminomethane (TRIS) are promising phase change materials (PCMs) for thermal energy storage (TES) applications. These molecules undergo reversible solid-solid phase transitions ...