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  1. Article ; Online: Harnessing laser technology to create stable metal halide perovskite-rGO conjugates as promising electrodes for Zn-ion capacitors.

    Kostopoulou, Athanasia / Vernardou, Dimitra / Livakas, Nikolaos / Brintakis, Konstantinos / Daskalakis, Stylianos / Stratakis, Emmanuel

    Nanoscale

    2024  Volume 16, Issue 13, Page(s) 6455–6463

    Abstract: We report that the direct conjugation of metal halide perovskite nanocrystals on rGO sheets can provide high performance and stable electrodes for Zn-ion capacitors. It is the first time that metal halide nanocrystals have been used to enhance the energy ...

    Abstract We report that the direct conjugation of metal halide perovskite nanocrystals on rGO sheets can provide high performance and stable electrodes for Zn-ion capacitors. It is the first time that metal halide nanocrystals have been used to enhance the energy storage of 2D materials in capacitors by introducing an additional pseudocapacitance mechanism. In particular, we present a simple, rapid and room temperature laser-induced method to anchor CsPbBr
    Language English
    Publishing date 2024-03-28
    Publishing country England
    Document type Journal Article
    ZDB-ID 2515664-0
    ISSN 2040-3372 ; 2040-3364
    ISSN (online) 2040-3372
    ISSN 2040-3364
    DOI 10.1039/d3nr05552c
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Extending the lifetime of vanadium redox flow batteries by reactivation of carbon electrode materials.

    Ashraf, Muhammad Adeel / Daskalakis, Stylianos / Kogler, Matthias / Ostermann, Markus / Gahlawat, Soniya / Son, Seohee / Mardilovich, Pavel / Valtiner, Markus / Pichler, Christian M

    Nanoscale

    2024  Volume 16, Issue 16, Page(s) 7926–7936

    Abstract: The degradation and aging of carbon felt electrodes is a main reason for the performance loss of Vanadium Redox Flow Batteries over extended operation time. In this study, the chemical mechanisms for carbon electrode degradation are investigated and ... ...

    Abstract The degradation and aging of carbon felt electrodes is a main reason for the performance loss of Vanadium Redox Flow Batteries over extended operation time. In this study, the chemical mechanisms for carbon electrode degradation are investigated and distinct differences in the degradation mechanisms on positive and negative electrodes have been revealed. A combination of surface analysis techniques such as X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and Electrochemical Impedance Spectroscopy (EIS) was applied for this purpose. In addition to understanding the chemical and physical alterations of the aged electrodes, a thermal method for reactivating aged electrodes was developed. The reactivation process was successfully applied on artificially aged electrodes as well as on electrodes from a real-world industrial vanadium redox flow battery system. The aforementioned analysis methods provided insight and understanding into the chemical mechanisms of the reactivation procedure. By applying the reactivation method, the lifetime of vanadium redox flow batteries can be significantly extended.
    Language English
    Publishing date 2024-04-25
    Publishing country England
    Document type Journal Article
    ZDB-ID 2515664-0
    ISSN 2040-3372 ; 2040-3364
    ISSN (online) 2040-3372
    ISSN 2040-3364
    DOI 10.1039/d3nr06300c
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Electrochemical Investigation of Phenethylammonium Bismuth Iodide as Anode in Aqueous Zn

    Daskalakis, Stylianos / Wang, Mingyue / Carmalt, Claire J / Vernardou, Dimitra

    Nanomaterials (Basel, Switzerland)

    2021  Volume 11, Issue 3

    Abstract: Despite the high potential impact of aqueous battery systems, fundamental characteristics such as cost, safety, and stability make them less feasible for large-scale energy storage systems. One of the main barriers encountered in the commercialization of ...

    Abstract Despite the high potential impact of aqueous battery systems, fundamental characteristics such as cost, safety, and stability make them less feasible for large-scale energy storage systems. One of the main barriers encountered in the commercialization of aqueous batteries is the development of large-scale electrodes with high reversibility, high rate capability, and extended cycle stability at low operational and maintenance costs. To overcome some of these issues, the current research work is focused on a new class of material based on phenethylammonium bismuth iodide on fluorine doped SnO
    Language English
    Publishing date 2021-03-08
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662255-5
    ISSN 2079-4991
    ISSN 2079-4991
    DOI 10.3390/nano11030656
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Evaluating the impact of a service-oriented framework for healthcare interoperability.

    Daskalakis, Stylianos / Mantas, John

    Studies in health technology and informatics

    2008  Volume 136, Page(s) 285–290

    Abstract: This paper describes the evaluation of a service-oriented prototype implementation. The prototype development aims to exploit the use of service-oriented concepts for achieving healthcare interoperability while it also attempts to move towards a virtual ... ...

    Abstract This paper describes the evaluation of a service-oriented prototype implementation. The prototype development aims to exploit the use of service-oriented concepts for achieving healthcare interoperability while it also attempts to move towards a virtual patient record paradigm. The proposed evaluation strategy investigates the adaptation of the DeLone and McLean model of information systems success with respect to service-oriented implementations. Specific service-oriented and virtual patient record characteristics were empirically encapsulated in the DeLone and McLean model and respective evaluation measures were produced. The proposed theoretical framework was utilized for conducting an empirical study amongst sixty two participants in order to observe their perceptions with respect to the hypothetical adoption of the prototype framework. The data gathered was analyzed using partial least squares. The generated results highlighted the importance of information quality whereas system quality did not prove to be a strong significant predictor in the overall model.
    MeSH term(s) Attitude to Computers ; Computer Communication Networks ; Computer Simulation ; Humans ; Information Management ; Medical Informatics Applications ; Medical Records Systems, Computerized ; Systems Integration ; User-Computer Interface
    Language English
    Publishing date 2008
    Publishing country Netherlands
    Document type Journal Article
    ISSN 0926-9630
    ISSN 0926-9630
    Database MEDical Literature Analysis and Retrieval System OnLINE

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