Výsledky vyhledávání - "Òxid de magnesi"

Nitrogen recovery from pig slurry by struvite precipitation using a low-cost magnesium oxide

Autor: Joan Dosta, Sergi Astals, Josep Maria Chimenos, S. Huete-Hernández, M. Martínez-Martorell, V.B. Aguilar-Pozo

Publikováno v: Dipòsit Digital de la UB
Universidad de Barcelona

Ammonia nitrogen management is a recurrent problem in intensive livestock areas. Struvite precipitation stands as a mature technology to recover ammonia nitrogen and prevent associated environmental problems. However, the feasibility of struvite tech

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a772928a9cee8abb4aa5b5bd4be6b79
http://hdl.handle.net/2445/173111

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Selective anodes for seawater splitting via functionalization of manganese oxides by a plasma-assisted process

Autor: Johan Verbeeck, Lorenzo Bigiani, Oleg I. Lebedev, Teresa Andreu, Chiara Maccato, Davide Barreca, Alberto Gasparotto, Evgeny Modin, Juan Ramon Morante, Cinzia Sada

Publikováno v: Dipòsit Digital de la UB
Universidad de Barcelona
Applied catalysis : B : environmental
Applied catalysis. B, Environmental
284 (2021): 119684-1–119684-13. doi:10.1016/j.apcatb.2020.119684
info:cnr-pdr/source/autori:Bigiani L.; Barreca D.; Gasparotto A.; Andreu T.; Verbeeck J.; Sada C.; Modin E.; Lebedev O.I.; Morante J.R.; Maccato C./titolo:Selective anodes for seawater splitting via functionalization of manganese oxides by a plasma-assisted process/doi:10.1016%2Fj.apcatb.2020.119684/rivista:Applied catalysis. B, Environmental (Print)/anno:2021/pagina_da:119684-1/pagina_a:119684-13/intervallo_pagine:119684-1–119684-13/volume:284

The electrolysis of seawater, a significantly more abundant natural reservoir than freshwater, stands as a promising alternative for sustainable hydrogen production, provided that the competitive chloride electro-oxidation is minimized. Herein, we pr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba8c4295d616791d3dd231e63f58c30e
http://hdl.handle.net/2445/180781

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Au-Manganese Oxide Nanostructures by a Plasma-Assisted Process as Electrocatalysts for Oxygen Evolution: A Chemico-Physical Investigation

Autor: Alberto Gasparotto, Cinzia Sada, Johan Verbeeck, Evgeny Modin, Chiara Maccato, Teresa Andreu, Oleg I. Lebedev, Lorenzo Bigiani, Davide Barreca, Juan Ramon Morante

Publikováno v: Advanced Sustainable Systems
Advanced Sustainable Systems, 2021, 5 (11), pp.2000177. ⟨10.1002/adsu.202000177⟩
Advanced sustainable systems (2020): 2000177-1–2000177-11. doi:10.1002/adsu.202000177
info:cnr-pdr/source/autori:Bigiani L.; Gasparotto A.; Andreu T.; Verbeeck J.; Sada C.; Modin E.; Lebedev O.I.; Morante J.R.; Barreca D.; Maccato C./titolo:Au-manganese oxide nanostructures by a plasma-assisted process as electrocatalysts for oxygen evolution: a chemico-physical investigation/doi:10.1002%2Fadsu.202000177/rivista:Advanced sustainable systems/anno:2020/pagina_da:2000177-1/pagina_a:2000177-11/intervallo_pagine:2000177-1–2000177-11/volume
Dipòsit Digital de la UB
Universidad de Barcelona
Advanced sustainable systems

Earth-abundant and eco-friendly manganese oxides are promising platforms for the oxygen evolution reaction (OER) in water electrolysis. Herein, a versatile and potentially scalable route to gold-decorated manganese oxide-based OER electrocatalysts is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24a9013a078acf40958cb9525d708a16
http://hdl.handle.net/2445/182419

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Simultaneous ammonium and phosphate recovery and stabilization from urban sewage sludge anaerobic digestates using reactive sorbents

Autor: Narjès Harrouch Batis, José Luis Cortina, Natalia Moreno, Xavier Querol, César Valderrama, Joan Dosta, Edxon Licon, Mehrez Hermassi

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Dipòsit Digital de la UB
Universidad de Barcelona

The use of low-cost inorganic sorbents as a new sustainable strategy to enhance the valorization of nutrients (N-P-K), from the urban water cycle (e.g., side streams from sewage sludge anaerobic digestion), in agriculture applications is presented. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a7e52d8a19e87b1fce6e959dec181ab
https://doi.org/10.1016/j.scitotenv.2018.02.243

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Stabilization Study of a Contaminated Soil with Metal(loid)s Adding Different Low-Grade MgO Degrees

Autor: Joan Formosa, J. Giro-Paloma, Josep Maria Chimenos

Publikováno v: Dipòsit Digital de la UB
Universidad de Barcelona
Sustainability
Volume 12
Issue 18
Sustainability, Vol 12, Iss 7340, p 7340 (2020)

Low-grade magnesium oxide (LG-MgO) was proposed as ordinary Portland cement (OPC) or lime substitute (CaO) for metal(loid)s remediation in contaminated soils. Some metal(loid)s precipitate at pH &asymp
9 in insoluble hydroxide form thus avoiding

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4cc82f53a930cf4f7ae7748f1594372
https://doi.org/10.3390/su12187340

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Blue luminescence at room temperature in defective MgO films

Autor: Carlos Martinez-Boubeta, Paolo Pellegrino, Ana Martínez, Aldrin Antony, Joan Bertomeu, Zorica Konstantinović, Ll. Balcells, Benjamín Martínez, Sergi Hernández

Publikováno v: Dipòsit Digital de la UB
Universidad de Barcelona
Recercat. Dipósit de la Recerca de Catalunya
instname

Luminescence spectroscopy has been used to characterize MgO films prepared by rf-sputtering. A clear correlation is found between the appearance of an emission peak centered at approximately 460 nm and the detection of ferromagnetic ordering in the s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6270842457ab34b25384eb9dd333f37c
http://hdl.handle.net/2445/50468

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Ferromagnetism in transparent thin ﬁlms of MgO

Autor: Martínez Boubeta, José Carlos, Beltrán, J. I., Balcells i Argemí, Lluís, Konstantinović, Zorica, Valencia, S., Schmitz, D., Arbiol i Cobos, Jordi, Estradé Albiol, Sònia, Cornil, J., Martínez Perea, Benjamin

Publikováno v: Dipòsit Digital de la UB
Universidad de Barcelona
Recercat. Dipósit de la Recerca de Catalunya
instname

We show both theoretical and experimental evidences of the appearance of ferromagnetism in MgO thin films. First-principles calculations allow predicting the possibility of the formation of a local moment in MgO, provided the existence of Mg vacancie

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::2e3d97d6674c7463e43aa156eccf61c8
http://hdl.handle.net/2445/33086

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Cementos quimicos formulados con subproductos de oxido de magnesio

Autor: Formosa Mitjans, Joan, Aranda, Miguel A. G., Chimenos Ribera, Josep Ma., Rosell, Joan Ramon, Fernández Renna, Ana Inés, Ginés, O.

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
Dipòsit Digital de la UB
Universidad de Barcelona

Es posible obtener cementos de fosfato de magnesio y potasio (KMgPO4·6H2O; K-estruvita), mediante la reacción en medio acuoso del óxido de magnesio y el dihidrogenofosfato de potasio, siendo ésta una reacción exotérmica muy rápida que permite

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::496266c826c4d62d457a54bf397fe080
http://hdl.handle.net/2445/29943

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Formulacions de ciment de fosfat amb subproductes de magnesi: selecció, avaluació de les propietats al foc i viabilitat econòmica

Autor: Fauria Torrent, Antolí

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

El ciment de fosfat, obtingut d’una reacció àcid-base en medi aquós entre KH2PO4 i MgO, presenta unes bones propietats mecàniques , però tot i que no és competitiu front d’altres tipus de ciment, hi ha bastants estudis que demostren amb èx

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::c4374cf58d19b198e1988243a2fb1202
http://hdl.handle.net/2099.1/10733

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Resistance Switching in Transparent Magnetic MgO Films

Autor: Aldrin Antony, Carlos Martinez-Boubeta, Joan Bertomeu, O. Jambois, P. Carreras

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
Dipòsit Digital de la UB
Universidad de Barcelona

We have studied the abrupt and hysteretic changes of resistance in MgO-based capacitor devices. The switching behavior is discussed in terms of the formation and rupture of conduction filaments due to the migration of structural defects in the electr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d377704f76a8f7b0099611ce44f7fe0
http://hdl.handle.net/2445/50485

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