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Nickel–rare earth electrodes for sodium borohydride electrooxidation [PDF]
Binary alloys of nickel (Ni) and dysprosium (Dy) or samarium (Sm) of different composition were prepared. Their electrocatalytic activity in respect to borohydride oxidation in alkaline medium was investigated by cyclic voltammetry, chronoamperometry and chronopotentiometry. It was correlated to their morphological and structural properties examined by
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Rare earth ion selective electrodes
Electroanalysis, 1993AbstractIn this article, we report the rare earth ion selective electrodes developed in our laboratory. Rare earth containing functional copolymers, rare earth oxides, and chelates have been used as active materials. Methods for preparing raw materials, behavior of electrodes, and application of rare earth ion selective electrodes in flow injection ...
Erkang Wang
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Silver(I)-selective electrodes based on rare earth element double-decker porphyrins [PDF]
Various double-decker porphyrins accommodating rare earth elements (Sm, Tb, Y) were investigated as ionophores in potentiometric ion sensors. The studied ion-selective electrodes based on double-decker porphyrins were primarily selective to Ag ions. The
Keith E Gordon +2 more
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Elements, 2020
The oxidation–reduction (‘redox’) state is an important intensive property of any geologic system and is typically measured (and reported) as either the redox potential (Eh) or the oxygen fugacity (fO2). These two concepts cover the whole spectrum of geologic systems: from low-temperature aqueous and sedimentary systems to high-temperature rock-forming
Cicconi, Maria Rita +3 more
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The oxidation–reduction (‘redox’) state is an important intensive property of any geologic system and is typically measured (and reported) as either the redox potential (Eh) or the oxygen fugacity (fO2). These two concepts cover the whole spectrum of geologic systems: from low-temperature aqueous and sedimentary systems to high-temperature rock-forming
Cicconi, Maria Rita +3 more
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Platinum–rare earth electrodes for hydrogen evolution in alkaline water electrolysis [PDF]
In the new “Hydrogen Economy” concept, water electrolysis is considered one of the most promising technologies for hydrogen production. Novel electrocatalytic materials for the hydrogen electrode are being actively investigated to improve the energy ...
C A C Sequeira +2 more
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The resistance of earth electrodes
Journal of the Institution of Electrical Engineers, 1933This paper, which is an abridgement of a report† prepared by the E.R.A., deals briefly with the most important aspects of the resistance of electrodes used for earthing electrical installations and apparatus. After comparing the practice in various countries, details are given of the effect of the resistivity of the soil and the size and lay-out of ...
P.D. Morgan, H.G. Taylor
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Performance of Earthing Systems for Different Earth Electrode Configurations
IEEE Transactions on Industry Applications, 2015Changes of behavior of earthing systems under high impulse conditions from its steady-state conditions have been found to occur in many studies. There are many factors that are thought to cause these changes. However, little studies so far have been conducted on the effects of earth electrode dimensions and configurations, particularly at field sites ...
Mohamed Shahriman Mohamed Yunus +3 more
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Journal of Electronics and Advanced Electrical Engineering, 2021
An algorithm is proposed in this paper for calculating the impulse earthing resistances of vertical earthing electrodes. The proposed algorithm employs the average potential method to derive the formula of the low current earthing resistance. Unlike the previous algorithm, the soil ionization effect under high impulse current is taken into account by ...
Yongzheng Zhang, Xiaoqing Zhang
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An algorithm is proposed in this paper for calculating the impulse earthing resistances of vertical earthing electrodes. The proposed algorithm employs the average potential method to derive the formula of the low current earthing resistance. Unlike the previous algorithm, the soil ionization effect under high impulse current is taken into account by ...
Yongzheng Zhang, Xiaoqing Zhang
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2011 7th Asia-Pacific International Conference on Lightning, 2011
The ability of a horizontal earth electrode in reducing earth potential rise is limited because, beyond a certain length known as the effective length, no further reduction is obtained. In this paper, field experiments and computer simulations of a horizontal earth electrode is presented.
A. Elmghairbi +4 more
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The ability of a horizontal earth electrode in reducing earth potential rise is limited because, beyond a certain length known as the effective length, no further reduction is obtained. In this paper, field experiments and computer simulations of a horizontal earth electrode is presented.
A. Elmghairbi +4 more
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Grounding/earthing electrode studies. 2
Proceedings of Industrial and Commercial Power Systems Conference, 2002The paper details the effort to determine the adequacy of various methods of grounding/earthing electrodes installed in the alkaline, highly mineralized soil of the Las Vegas, Nevada area The grounding electrode testing program outlined has been prepared to address a number of questions relating to grounding [earthing] electrodes and soil conditions in
R.S. Howard, D.W. Zipse
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