185 results found
Daniels FA, Attingre C, Kucernak AR, et al., 2014, Current collector design for closed-plenum polymer electrolyte membrane fuel cells, JOURNAL OF POWER SOURCES, Vol: 249, Pages: 247-262, ISSN: 0378-7753
Shirshova N, Qian H, Houlle M, et al., 2014, Multifunctional structural energy storage composite supercapacitors, FARADAY DISCUSSIONS, Vol: 172, Pages: 81-103, ISSN: 1359-6640
Obeisun OA, Meyer Q, Robinson J, et al., 2014, Advanced diagnostics applied to a self-breathing fuel cell, Pages: 249-258, ISSN: 1938-5862
© The Electrochemical Society. In a self-breathing fuel cell, oxygen is taken directly from ambient air which provides the benefit of reduced system complexity and system operation. This study explores the use of, printed circuit boards (PCBs) as flow field plates to design a self-breathing fuel cell which helps reduce overall volume and cost of the system. It investigates the effect opening ratios have on fuel cell performance using polarization curves and electrochemical impedance spectroscopy. The result obtained indicates that greater opening ratios improve the mass transport properties of the fuel cell but increased Ohmic resistance as a result of the increased openings and reduced area of lands/ribs respectively. A maximum power density of 188 mW cm-2 was achieved.
Ahmad EA, Mallia G, Kramer D, et al., 2013, Erratum: The stability of LaMnO<inf>3</inf> surfaces: A hybrid exchange density functional theory study of an alkaline fuel cell catalyst (Journal of Materials Chemistry A (2013) (DOI:10.1039/c3ta11382e)), Journal of Materials Chemistry A, Vol: 1, ISSN: 2050-7488
kucernak, brandon, yufit, 2013, regenerative fuel cells
The present invention provides a regenerative fuel cell comprising an anionic membrane capable of selectively passing anions, wherein the pH of the anolyte and/or catholyte is at least 10. The present invention also relates to a method of operating a regenerative fuel cell comprising an anionic membrane capable of selectively passing anions, wherein the pH of the anolyte and/or catholyte is at least 10.
Turek VA, Elliott LN, Tyler AII, et al., 2013, Self-Assembly and Applications of Ultra-Concentrated Nanoparticle Solutions, ACS Nano
Thepkaew J, Therdthianwong S, Therdthianwong A, et al., 2013, Promotional roles of Ru and Sn in mesoporous PtRu and PtRuSn catalysts toward ethanol electrooxidation, 3rd International Conference of Fuel Cell & Hydrogen Technology (ICFCHT), Publisher: PERGAMON-ELSEVIER SCIENCE LTD, Pages: 9454-9463, ISSN: 0360-3199
Qian H, Kucernak AR, Greenhalgh ES, et al., 2013, Multifunctional Structural Supercapacitor Composites Based on Carbon Aerogel Modified High Performance Carbon Fiber Fabric, ACS APPLIED MATERIALS & INTERFACES, Vol: 5, Pages: 6113-6122, ISSN: 1944-8244
Cousens NEA, Kucernak AR, 2013, Electrochemistry of the ionic liquid vertical bar oil interface: A new water-free interface between two immiscible electrolyte solutions, ELECTROCHEMISTRY COMMUNICATIONS, Vol: 31, Pages: 63-66, ISSN: 1388-2481
Zalitis CM, Kramer D, Sharman J, et al., 2013, Pt Nano-Particle Performance for PEFC Reactions At Low Catalyst Loading and High Reactant Mass Transport, 13th Polymer Electrolyte Fuel Cell Symposium (PEFC), Publisher: ELECTROCHEMICAL SOC INC, Pages: 39-47, ISSN: 1938-5862
Shirshova N, Bismarck A, Carreyette S, et al., 2013, Structural supercapacitor electrolytes based on bicontinuous ionic liquid-epoxy resin systems, JOURNAL OF MATERIALS CHEMISTRY A, Vol: 1, Pages: 15300-15309, ISSN: 2050-7488
Ahmad EA, Mallia G, Kramer D, et al., 2013, The stability of LaMnO3 surfaces: a hybrid exchange density functional theory study of an alkaline fuel cell catalyst, JOURNAL OF MATERIALS CHEMISTRY A, Vol: 1, Pages: 11152-11162, ISSN: 2050-7488
Mistry M, Kucernak A, Nguyen S, et al., 2013, Addressing engineering issues for a composite structural power demonstrator, Pages: 2692-2700
© QinetiQ Ltd 2013. Engineering issues have been addressed for a Multifunctional (MF) Carbon Fibre Reinforced Polymer (CFRP) capable of storing electrical energy and carrying mechanical load. The MF material was integrated into a technology demonstrator in the form of a car boot lid where the boot lighting was powered independently of the car main electrical system. Current collection was improved by using a thin copper mesh on the carbon electrodes while hole drilling was found to have a negligible effect on the laminate electrical performance.
Zalitis CM, Kramer D, Kucernak AR, 2013, Electrocatalytic performance of fuel cell reactions at low catalyst loading and high mass transport, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 15, Pages: 4329-4340, ISSN: 1463-9076
Ahmad EA, Mallia G, Kramer D, et al., 2013, The stability of LaMnO3 surfaces: a hybrid exchange density functional theory study of an alkaline fuel cell catalyst (vol 1, pg 11152, 2013), JOURNAL OF MATERIALS CHEMISTRY A, Vol: 1, Pages: 15555-15555, ISSN: 2050-7488
Greenhalgh ES, Ankersen J, Asp LE, et al., 2013, Mechanical and microstructural characterisation of multifunctional structural power composites, Pages: 2228-2237
Qian H, Kucernak AR, Greenhalgh ES, et al., 2013, Multifunctional structural power composites based on carbon aerogel modified high performance carbon fibre fabrics, Pages: 2238-2243
This paper presents the development of multifunctional materials that perform a structural role whilst simultaneously storing electrical energy as a supercapacitor. Two structural carbon fibre woven electrodeswere separated by a woven glass fibre layer, and infused with a multifunctional polymer electrolyte. Following characterisation of electrochemical and compressive performance, working structural supercapacitor prototypes were demonstrated. Since the relative mechanical and electrical demands are application specific, an optimisation methodology is proposed. Multifunctional composites were achieved, which had compressive moduli of up to 39 GPa and capacitances of up to 52 mF g 1.
Kucernak A, Bidault F, Smith G, 2012, Membrane electrode assemblies based on porous silver electrodes for alkaline anion exchange membrane fuel cells, ELECTROCHIMICA ACTA, Vol: 82, Pages: 284-290, ISSN: 0013-4686
Thepkaew J, Therdthianwong S, Kucernak A, et al., 2012, Electrocatalytic activity of mesoporous binary/ternary PtSn-based catalysts for ethanol oxidation, JOURNAL OF ELECTROANALYTICAL CHEMISTRY, Vol: 685, Pages: 41-46, ISSN: 1572-6657
Jiang J, Kucernak A, 2012, Mass transport and kinetics of electrochemical oxygen reduction at nanostructured platinum electrode and solid polymer electrolyte membrane interface, JOURNAL OF SOLID STATE ELECTROCHEMISTRY, Vol: 16, Pages: 2571-2579, ISSN: 1432-8488
Ahmad EA, Mallia G, Kramer D, et al., 2012, Comment on "2D Atomic Mapping of Oxidation States in Transition Metal Oxides by Scanning Transmission Electron Microscopy and Electron Energy-Loss Spectroscopy", PHYSICAL REVIEW LETTERS, Vol: 108, ISSN: 0031-9007
Bismarck A, Carreyette S, Fontana QPV, et al., 2012, Multifunctional epoxy resin for structural supercapacitors, ECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials
Polymer-based electrolytes based on commercially available epoxy resins were prepared through the addition of a liquid electrolyte, a solution of a lithium salt in an ionic liquid. The polymer monoliths were characterized using impedance spectroscopy, 3-point bending test, scanning electron microscopy (SEM) and nitrogen adsorption (BET). The balance of ionic conductivity and flexural modulus is crucially dependent on the relative proportions of epoxy resin to electrolyte. Also the effect of the liquid electrolyte on curing kinetics and processing was assessed by complex viscosity measurements and differential scanning calorimetry (DSC). Only one out of the three resins investigated exhibited a significant acceleration effect.
Cousens NEA, Kucernak AR, 2011, Increasing the potential window of the interface between two immiscible electrolyte solutions to more than 1.2 V, ELECTROCHEMISTRY COMMUNICATIONS, Vol: 13, Pages: 1539-1541, ISSN: 1388-2481
Ahmad EA, Liborio L, Kramer D, et al., 2011, Thermodynamic stability of LaMnO3 and its competing oxides: A hybrid density functional study of an alkaline fuel cell catalyst, PHYSICAL REVIEW B, Vol: 84, ISSN: 2469-9950
Elias S, Quinson J, Britovsek GJP, et al., 2011, Electrocatalytic CO2 reduction using modified electrodes, 242nd National Meeting of the American-Chemical-Society (ACS), Publisher: AMER CHEMICAL SOC, ISSN: 0065-7727
Bidault F, Kucernak A, 2011, Cathode development for alkaline fuel cells based on a porous silver membrane, JOURNAL OF POWER SOURCES, Vol: 196, Pages: 4950-4956, ISSN: 0378-7753
Sleightholme AES, Kucernak A, 2011, An anomalous peak observed in the electrochemistry of the platinum/perfluorosulfonic acid membrane interface, ELECTROCHIMICA ACTA, Vol: 56, Pages: 4396-4402, ISSN: 0013-4686
Mao B, Kurtoglu A, Kucernak ARJ, et al., 2011, Exploiting carbon nanotubes in fuel cells, NSTI Nanotechnology Conference and Expo, Publisher: CRC PRESS-TAYLOR & FRANCIS GROUP, Pages: 807-809
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