Search Results - "PELL, W. G"
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Voltammetry at a de Levie brush electrode as a model for electrochemical supercapacitor behaviour
Published in Journal of electroanalytical chemistry (Lausanne, Switzerland) (16-03-2001)“…Electrochemical supercapacitors provide electrical energy storage systems complementary to batteries. Based on the double layer capacitance of high area porous…”
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Stages in the development of thick cobalt oxide films exhibiting reversible redox behavior and pseudocapacitance
Published in Electrochimica acta (01-01-1999)“…Thick hydrous oxide films can be grown on Co metal electrodes in aqueous NaOH under conditions of potential cycling in cyclic voltammetry. Such films develop…”
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Analysis of non-uniform charge/discharge and rate effects in porous carbon capacitors containing sub-optimal electrolyte concentrations
Published in Journal of electroanalytical chemistry (Lausanne, Switzerland) (08-09-2000)“…The effects of internal electrolyte resistance on the acceptance and delivery of charge by a series of 3 V, non-aqueous, double-layer capacitors have been…”
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Diagnostic analyses for mechanisms of self-discharge of electrochemical capacitors and batteries
Published in Journal of power sources (1997)“…In the charged condition, electrochemical capacitors, like batteries, are in a state of high energy relative to that of the system in the discharged state…”
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Journal Article Conference Proceeding -
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Power limitations of supercapacitor operation associated with resistance and capacitance distribution in porous electrode devices
Published in Journal of power sources (20-03-2002)“…By analogy with the behavior of vacuum (air) capacitors, early perceptions of the properties of electrochemical supercapacitors were that very high…”
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Journal Article Conference Proceeding -
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Quantitative modeling of factors determining Ragone plots for batteries and electrochemical capacitors
Published in Journal of power sources (01-12-1996)“…Ragone plots relating power-density to achievable energy-density have been used for many years as an empirical basis for comparative performance evaluation of…”
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Voltammetry, nanogravimetry and double-layer capacitance studies on chemisorption of Cl − and Br −, competitive with potential-dependent electrosorption of O species at Pt electrodes
Published in Electrochimica acta (15-11-2003)“…The change of double-layer capacitance ( C dl) behaviour of polycrystalline Pt electrodes upon controlled formation of thin oxide films is evaluated. The…”
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Journal Article Conference Proceeding -
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Development of high-capacity primary alkaline manganese dioxide/zinc cells consisting of Bi-doping of MnO2
Published in Journal of applied electrochemistry (01-11-2005)“…The feasibility of using Bi-doped manganese dioxide as the cathode in a primary alkaline zinc cell is discussed. A Bi-doped MnO2 cathode material made by the…”
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Analysis of power limitations at porous supercapacitor electrodes under cyclic voltammetry modulation and dc charge
Published in Journal of power sources (01-06-2001)“…A simple capacitor is perceived as being capable of discharge (or recharge) at high rates, limited only by a small equivalent series resistance. However, in…”
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Evaluation and origins of the difference between double-layer capacitance behaviour at Au-metal and oxidized Au surfaces
Published in Electrochimica acta (30-04-2004)“…In studies of processes at oxidized compared with unoxidized electrode surfaces by transient methods corrections for double-layer charging are usually required…”
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Nanogravimetry study of the initial stages of anodic surface oxide film growth at Au in aqueous HClO4 and H2SO4 by means of EQCN
Published in Electrochimica acta (01-08-2003)“…The dependence of the initial stages of anodic oxide film growth at Au on time or log time, *th, was investigated by means of nanogravimetry using a…”
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Electrochemical efficiency in multiple discharge/recharge cycling of supercapacitors in hybrid EV applications
Published in Journal of power sources (01-07-1999)“…The use of large capacitance supercapacitors in series or series/parallel configurations has been envisaged and evaluated as a basis for load-levelling, and…”
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Journal Article Conference Proceeding -
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Peculiarities and requirements of asymmetric capacitor devices based on combination of capacitor and battery-type electrodes
Published in Journal of power sources (01-10-2004)“…New concepts have arisen in recent years concerning configurations of the so-called hybrid charge-storage devices in which a faradaic, rechargeable…”
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Comparative studies of self-discharge by potential decay and float-current measurements at C double-layer capacitor and battery electrodes
Published in Journal of power sources (03-09-2004)“…Charged electrochemical capacitors and battery electrodes are in a state of high Gibbs energy in relation to that of their discharged states; hence there is a…”
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Capacitance of the double-layer at polycrystalline Pt electrodes bearing a surface-oxide film
Published in Journal of electroanalytical chemistry (Lausanne, Switzerland) (06-09-2002)“…Although double-layer charging corrections to results of charge-transient and cyclic voltammetry current responses are required in experiments conducted at…”
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Self-discharge and potential recovery phenomena at thermally and electrochemically prepared RuO sub(2) supercapacitor electrodes
Published in Electrochimica acta (01-01-1997)“…Films of ruthenium oxide (RuO sub(2)) exhibit large, almost constant capacitance, over a potential range of approximately 1.4 V in aqueous acid solutions. This…”
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