The Experts below are selected from a list of 58230 Experts worldwide ranked by ideXlab platform

Rizwan Raza - One of the best experts on this subject based on the ideXlab platform.

  • Nanocomposite BaZr0.7Sm0.1Y0.2O3-delta-La0.8Sr0.2Co0.2Fe0.8O3-delta materials for single layer fuel cell
    International Journal of Hydrogen Energy, 2017
    Co-Authors: Rizwan Raza, Asifa Khan, Asia Rafique, Ayesha Aunbreen, Kalsoom Alzhtar, M. Ashfaq Ahmad, Sophia Akhtar, Khurrarn Hashmi, Mehtab Ullah, Rashid Ali
    Abstract:

    Single layer fuel cell (SLFC) is a novel breakthrough in energy conversion technology. This study is to realize the physical-electrochemical co-driving mechanism of a single Component Device compos ...

  • A single-Component fuel cell reactor
    International Journal of Hydrogen Energy, 2011
    Co-Authors: Rizwan Raza, Janne Patakangas, Peter Lund
    Abstract:

    Abstract We report here a single-Component reactor consisting of a mixed ionic and semi-conducting material exhibiting hydrogen-air (oxygen) fuel cell reactions. The new single-Component Device was compared to a conventional three-Component (anode/electrolyte/cathode) fuel cell showing at least as good performance. A maximum power density of 300–600 mW cm −2 was obtained with a LiNiZn-oxide and ceria-carbonate nanocomposite material mixture at 450–550 °C. Adding a redox catalyst element (Fe) resulted in an improvement reaching 700 mW cm −2 at 550 °C.

E. Boissy - One of the best experts on this subject based on the ideXlab platform.

  • A simple method for the preparation and injection of gas mixtures into a gas chromatograph using a two-Component Device.
    Journal of chromatography. A, 2020
    Co-Authors: Jean-pierre Donval, Vivien Guyader, E. Boissy
    Abstract:

    Environmental sciences are expanding and are based on standardized and certified calibrations when measurements are required. When a gaseous composition is quantified, commercial standards are used. Here, we report on a two-Component Device for the preparation and injection of gas mixtures at the appropriate levels of pressure and volume. The two-Component calibrator/injector can be used simultaneously or separately depending on the experimental objective but their combination is extremely effective for injecting gas mixtures at low concentrations. The quantity of gas introduced into a gas chromatograph with the injector can be adapted to the sensitivity of the detector or to avoid column overload. The calibrator provides for a large range of gas-mixture concentrations, from ppm to % mol/mol with an error of preparation of around 1% and an accuracy of less than 3%. This Device prepares a variety of gas mixtures (hydrogen, methane and dioxide of carbon) which are compared with certified mixtures by means of gas chromatographic measurements. The results show good agreement between prepared and certified mixtures with a maximum difference of 2% which remains within the relative error of commercial standard. In addition, the preparation of dissolved methane at different concentrations in seawater is presented as a direct application of the calibrator.

Rashid Ali - One of the best experts on this subject based on the ideXlab platform.

Steven Kraines - One of the best experts on this subject based on the ideXlab platform.

  • A flexible model integration approach for evaluating tradeoffs between CO2 emissions and cost in solid oxide fuel cell-based building energy systems
    International Journal of Energy Research, 2005
    Co-Authors: Michihisa Koyama, Steven Kraines
    Abstract:

    A simulation framework for flexible evaluation of various distributed building energy systems based on the integration of Component Device simulation models is presented. Device technology models were constructed for a solid oxide fuel cell (SOFC), a gas turbine, a double pipe heat exchanger, and a compressor. A scheme is proposed for defining model interfaces in order to improve the flexibility and accessibility of the models. Based on that scheme, interfaces are defined for each Device model. The Component Device models are integrated to construct system models of (1) a hybrid system combining an SOFC and a gas turbine (SOFC/GT system) and (2) a stand-alone SOFC system. The integrated model of the SOFC/GT system is then used to carry out a multi-objective optimization in order to study the tradeoffs between cost and CO2 emissions of the SOFC system operation for a given electricity demand. Through these analyses, the optimal configuration of the SOFC/GT system and the optimal operation conditions of the SOFC system for the given electricity demand were explored. Copyright (c) 2005 John Wiley & Sons, Ltd

Marta Krason - One of the best experts on this subject based on the ideXlab platform.

  • an integrated self healable electronic skin system fabricated via dynamic reconstruction of a nanostructured conducting network
    Nature Nanotechnology, 2018
    Co-Authors: Jiheong Kang, Orestis Vardoulis, Naoji Matsuhisa, Jin Young Oh, John W F To, Toru Katsumata, Allister F Mcguire, Marta Krason
    Abstract:

    Electronic skin Devices capable of monitoring physiological signals and displaying feedback information through closed-loop communication between the user and electronics are being considered for next-generation wearables and the ‘Internet of Things’. Such Devices need to be ultrathin to achieve seamless and conformal contact with the human body, to accommodate strains from repeated movement and to be comfortable to wear. Recently, self-healing chemistry has driven important advances in deformable and reconfigurable electronics, particularly with self-healable electrodes as the key enabler. Unlike polymer substrates with self-healable dynamic nature, the disrupted conducting network is unable to recover its stretchability after damage. Here, we report the observation of self-reconstruction of conducting nanostructures when in contact with a dynamically crosslinked polymer network. This, combined with the self-bonding property of self-healing polymer, allowed subsequent heterogeneous multi-Component Device integration of interconnects, sensors and light-emitting Devices into a single multi-functional system. This first autonomous self-healable and stretchable multi-Component electronic skin paves the way for future robust electronics. Self-reconstruction of conducting nanostructures assisted by a dynamically crosslinked polymer network enables the fabrication of autonomous self-healable and stretchable multi-Component electronic skin.