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  1. Article ; Online: The Effect of Ni-Modified LSFCO Promoting Layer on the Gas Produced through Co-Electrolysis of CO 2 and H 2 O at Intermediate Temperatures

    Massimiliano Lo Faro / Sabrina Campagna Zignani / Vincenzo Antonucci / Antonino Salvatore Aricò

    Catalysts, Vol 11, Iss 56, p

    2021  Volume 56

    Abstract: The co-electrolysis of CO 2 and H 2 O at an intermediate temperature is a viable approach for the power-to-gas conversion that deserves further investigation, considering the need for green energy storage. The commercial solid oxide electrolyser is a ... ...

    Abstract The co-electrolysis of CO 2 and H 2 O at an intermediate temperature is a viable approach for the power-to-gas conversion that deserves further investigation, considering the need for green energy storage. The commercial solid oxide electrolyser is a promising device, but it is still facing issues concerning the high operating temperatures and the improvement of gas value. In this paper we reported the recent findings of a simple approach that we have suggested for solid oxide cells, consisting of the addition of a functional layer coated to the fuel electrode of commercial electrochemical cells. This approach simplifies the transition to the next generation of cells manufactured with the most promising materials currently developed, and improves the gas value in the outlet stream of the cell. Here, the material in use as a coating layer consists of a Ni-modified La 0.6 Sr 0.4 Fe 0.8 Co 0.2 O 3 , which was developed and demonstrated as a promising fuel electrode for solid oxide fuel cells. The results discussed in this paper prove the positive role of Ni-modified perovskite as a coating layer for the cathode, since an improvement of about twofold was obtained as regards the quality of gas produced.
    Keywords valorisation of CO 2 ; solid oxide electrochemical cells ; green methane ; energy storage ; power-to-gas ; Chemical technology ; TP1-1185 ; Chemistry ; QD1-999
    Subject code 620
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Bifunctional CuO-Ag/KB Catalyst for the Electrochemical Reduction of CO 2 in an Alkaline Solid-State Electrolysis Cell

    Sabrina Campagna Zignani / Massimiliano Lo Faro / Alessandra Palella / Lorenzo Spadaro / Stefano Trocino / Carmelo Lo Vecchio / Antonino Salvatore Aricò

    Catalysts, Vol 12, Iss 293, p

    2022  Volume 293

    Abstract: The conversion of carbon dioxide into value-added products is progressively gaining momentum. Several strategies have been used to develop technologies that reduce the net emissions of CO 2 . The utilisation of CO 2 could either contribute to carbon ... ...

    Abstract The conversion of carbon dioxide into value-added products is progressively gaining momentum. Several strategies have been used to develop technologies that reduce the net emissions of CO 2 . The utilisation of CO 2 could either contribute to carbon recycling. In this paper, the transformation of CO 2 was investigated in a coelectrolysis cell constituted of a solid polymer electrolyte, a carbon-supported CuO-Ag composite cathode and NiFeOx anode. Noncritical raw materials were synthesised according to the oxalate method and investigated in an alkaline environment. Low-carbon alcohols were obtained with a specific selectivity for ethanol and methanol over the CuO-Ag/KB cathode. The reaction rates at 1.6 V and 1.8 V cell voltages have been determined in steady-state experiments using NaHCO 3 supporting electrolyte recirculated at the anode.
    Keywords renewables ; CO 2 reduction ; zero-gap electrochemical cell ; synthetic alcohols ; CRM-free catalyst ; Chemical technology ; TP1-1185 ; Chemistry ; QD1-999
    Language English
    Publishing date 2022-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: High performance solid-state iron-air rechargeable ceramic battery operating at intermediate temperatures (500–650 °C)

    Trocino, Stefano / Massimiliano Lo Faro / Sabrina Campagna Zignani / Vincenzo Antonucci / Antonino Salvatore Aricò

    Applied energy. 2019 Jan. 01, v. 233-234

    2019  

    Abstract: An efficient, reliable and cost-effective energy storage is necessary to increase the use of renewables and to contribute in reducing the carbon footprint of the electricity grid. A novel iron-air battery characterized by high performance, safety and ... ...

    Abstract An efficient, reliable and cost-effective energy storage is necessary to increase the use of renewables and to contribute in reducing the carbon footprint of the electricity grid. A novel iron-air battery characterized by high performance, safety and reliability for operation at intermediate temperatures (500–650 °C) is demonstrated. The iron-air rechargeable battery is based on a new configuration where both the nickel-electrode and the hydrogen/water redox processes, generally utilized in high temperature ceramic batteries, are avoided in this system completely operating in the solid state. This can increase the durability and reliability of the battery while providing excellent performance (specific energy of 0.46 Wh g−1, specific capacity of 0.5 Ah g−1, faradaic efficiency 80%). These characteristics favourably compare to low temperature iron-air batteries. Excellent performance and cyclability are achieved at 650 °C for the iron-air solid-state battery showing no relevant degradation after more than 100 cycles. The concept is based on a composite iron-ceria anode in contact with an oxygen anion-conducting lanthanum gallate electrolyte and a mixed conductivity lanthanum ferrite perovskite-based cathode. This combines both simplicity of operation and intrinsic safety with high energy density and durability. The excellent dynamic behaviour, the absence of influence of external environmental conditions and the use of cost-effective ceramic materials, with the possibility to produce high quality heat to cover the chain of electrical and thermal energy, make such systems largely appealing for applications related to renewable power sources.
    Keywords anodes ; batteries ; carbon footprint ; cathodes ; ceramics ; cost effectiveness ; durability ; electricity ; electrolytes ; environmental factors ; ferrimagnetic materials ; heat ; hydrogen ; lanthanum ; oxygen ; specific energy ; temperature ; thermal energy
    Language English
    Dates of publication 2019-0101
    Size p. 386-394.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 2000772-3
    ISSN 0306-2619
    ISSN 0306-2619
    DOI 10.1016/j.apenergy.2018.10.022
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Sucrose-Assisted Solution Combustion Synthesis of Doped Strontium Ferrate Perovskite-Type Electrocatalysts

    Maria Laura Tummino / Leonarda Francesca Liotta / Giuliana Magnacca / Massimiliano Lo Faro / Stefano Trocino / Sabrina Campagna Zignani / Antonino Salvatore Aricò / Francesca Deganello

    Catalysts, Vol 10, Iss 1, p

    Primary Role of the Secondary Fuel

    2020  Volume 134

    Abstract: The methodologies and experimental conditions used for the synthesis of cathode materials for electrochemical devices strongly influence their electrocatalytic performance. In particular, solution combustion synthesis is a convenient and versatile ... ...

    Abstract The methodologies and experimental conditions used for the synthesis of cathode materials for electrochemical devices strongly influence their electrocatalytic performance. In particular, solution combustion synthesis is a convenient and versatile methodology allowing a fine-tuning of the properties of the material. In this work, we used for the first time a sucrose assisted-solution combustion synthesis for the preparation of Cerium and Cobalt-doped SrFeO 3−δ electrocatalysts and we investigated the effect of polyethylene glycol (PEG) addition as a secondary fuel on their structural, microstructural, redox and electrochemical properties. The perovskite-type powders were characterized by X-ray diffraction coupled with Rietveld refinement, scanning, and high-resolution transmission electron microscopies, thermogravimetric analysis, nitrogen adsorption measurements, and temperature-programmed reduction. Electrical conductivity and overpotential measurements were performed after the deposition of the powders onto a Gd-doped ceria electrolyte pellet. Stable high-valence B-site cations were detected in the powders prepared from sucrose-PEG fuel mixtures, although a substantial improvement of the conductivity and a decrease of the overpotential values were obtained only with high molecular weight PEG. The superior electrochemical performance obtained using PEG with high molecular weight has been ascribed to a faster interaction of the powder with the oxygen gas phase favored by the nanometer-sized crystalline domains.
    Keywords doped strontium ferrate ; fuel effect ; solution combustion synthesis ; sucrose-assisted combustion ; solid oxide fuel cells ; cathode materials ; polyethylene glycol ; Chemical technology ; TP1-1185 ; Chemistry ; QD1-999
    Subject code 540
    Language English
    Publishing date 2020-01-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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    Inter-library loan at ZB MED

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