A device and method for measuring the pct curve of a material with a solid proton conductor

A proton conductor and solid-state technology, applied in the direction of material electrochemical variables, etc., can solve the problems of expensive equipment and easy contamination of the material to be tested, and achieve the effects of simple operation, fast measurement, and easy data collection and analysis
CN103822962BActive Publication Date: 2016-04-20NORTHEASTERN UNIV LIAONING
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHEASTERN UNIV LIAONING
Publication Date
2016-04-20

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Abstract

The invention belongs to the technical field of physical and chemical test, and concretely relates to an apparatus for measuring the PCT curve of a material by using a solid state proton conductor, and a method thereof. The apparatus for measuring the PCT curve of a material by using a solid state proton conductor comprises a solid state proton conductor container, a DC source, a voltmeter, a transfer switch and an electric resistance furnace; when the material is measured, a DC voltage is applied to two electrodes of a proton conductor to measure the change curve of the current intensity of a circuit with the time, hydrogen in atmosphere electro-migrates to a material to be measured and capable of adsorbing hydrogen, and the hydrogen voltage can be calculated by measuring the electromotive force of a hydrogen concentration cell according to the principle of a conductor hydrogen concentration cell; and the content of hydrogen in the material can be calculated by measuring the change curve of the current according to a principle of charge conservation. The apparatus and the method enables the hydrogen pressure and the hydrogen content which are difficult to measure to be directly converted into electric signals, so it is easy to acquire and analyze data, thereby the apparatus and the method have the advantages of fast measurement, low cost and reliable data.
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Description

technical field

[0001] The invention belongs to the technical field of physical and chemical testing, and in particular relates to a device and method for measuring PCT curves of materials by using a solid proton conductor. Background technique

[0002] The PCT curve, also known as the pressure-composition-temperature curve, characterizes the phase equilibrium relationship of the metal-hydrogen system. The PCT curve of hydrogen storage materials is an important characteristic curve to measure the thermodynamic performance of hydrogen storage materials. The hydrogen storage capacity of the metal hydride and the decomposition pressure value at any temperature can be known through the PCT curve. The plateau pressure, plateau width and slope, plateau initial concentration and hysteresis effect of the PCT curve are not only the main indicators for routinely measuring the hydrogen absorption and desorption performance of hydrogen storage alloys, but also the basis for exploring n...

Claims

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