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Micro heating platform for measuring molten salt electriochemistry in-situ Raman spectrum and sample cell

A spectroscopic measurement and microscopic hot stage technology, applied in the field of electrochemical analysis, can solve problems such as incompatibility, few sample cell sealing, etc., to achieve the effect of compact structure, high temperature experimental measurement, and increased length

Active Publication Date: 2015-04-08
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, most of the sample pools used by researchers in the past used quartz crucibles to hold molten salts, and few of them sealed the sample pools, so they are not suitable for research on molten salt systems that react with quartz and are highly volatile.

Method used

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  • Micro heating platform for measuring molten salt electriochemistry in-situ Raman spectrum and sample cell
  • Micro heating platform for measuring molten salt electriochemistry in-situ Raman spectrum and sample cell
  • Micro heating platform for measuring molten salt electriochemistry in-situ Raman spectrum and sample cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Under 623K, KNO 3 Electrochemical in situ Raman spectroscopy determination of molten salt on the surface of Pt electrode under constant potential electrolysis conditions;

[0058] Temperature controller: Beijing Chaoyang Automatic Instrument Factory CKW-3100;

[0059] Raman spectrometer: HR800 microlaser Raman spectrometer from Horiba Jobin Y’von Company, Japan;

[0060] Laser: IK3301R-G He-Cd 325nm UV laser from Kimmon Koha, Japan;

[0061] Microscope (lens): Microscope (10x microscope lens) from Japan Olympus Company;

[0062] Electrochemical workstation: PGSTAT30 electrochemical workstation of AUTOLAB company in the Netherlands;

[0063] Use crucible: titanium crucible; working electrode: Pt sheet, reference electrode: Pt wire, counter electrode: titanium crucible;

[0064] KNO of 623K 3 The in-situ Raman spectra of the molten salt on the surface of the Pt electrode under constant potential electrolysis conditions when the potential increases negatively and posi...

Embodiment 2

[0068] At 823K, Li 2 CO 3 -Na 2 CO 3 Under the condition of cyclic voltammetry, the electrochemical in situ Raman spectrometry of the thin liquid layer of molten salt on the surface of Ni electrode;

[0069] Temperature controller: Beijing Chaoyang Automatic Instrument Factory CKW-3100;

[0070] Raman spectrometer: HR800 microlaser Raman spectrometer from Horiba Jobin Y’von Company, Japan;

[0071] Laser: IK3301R-G He-Cd 325nm UV laser from Kimmon Koha, Japan;

[0072] Microscope (lens): Microscope (10x microscope lens) from Japan Olympus Company;

[0073] Electrochemical workstation: PGSTAT30 electrochemical workstation of AUTOLAB company in the Netherlands;

[0074] Use crucible: graphite crucible; working electrode: Ni sheet, reference electrode: Pt wire, counter electrode: graphite sheet;

[0075] Cyclic voltammetry experiment scan speed: 0.04V / s;

[0076] At 823K, Li 2 CO 3 -Na 2 CO 3 The cyclic voltammetry curve of molten salt is as follows Figure 13 shown....

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Abstract

The invention discloses a micro heating platform for measuring a molten salt electriochemistry in-situ Raman spectrum and a sample cell, belonging to the technical field of electrochemical analysis. The micro heating platform comprises a heating platform housing, a hearth, a heating platform cover, uprights and a base, wherein a heating platform housing circulating loop water path is arranged inside the heating platform housing, a sample cell arrangement groove is formed in the top of a hearth main body, bar-shaped grooves are symmetrically formed in the left side and the right side of the sample cell arrangement groove, resistance wire mounting holes are formed in the hearth main body at two sides of each of the bar-shaped grooves and the sample cell arrangement groove, spiral resistance wires are arranged in the resistance wire mounting holes, and the resistance wires and the hearth main body are arranged in an insulating manner; a heating platform cover circulating cooling water path is arranged in a heating platform cover main body, and a microscope lens through hole is formed in the middle of the heating platform cover main body. The sample cell has the structure that a quartz cover is arranged at the top of a crucible; through holes are formed in the upper part of the crucible and correspond to the bar-shaped grooves; if the crucible is made of a conductive material, the crucible can be simultaneously used as a counter electrode, or the counter electrode can be singly arranged in the crucible.

Description

technical field [0001] The invention belongs to the technical field of electrochemical analysis, in particular to a micro-heating stage and a sample cell for electrochemical in-situ Raman spectrum measurement of molten salts. Background technique [0002] In contemporary electrochemistry, the development of spectroelectrochemical technology is very rapid. Electrochemical in situ spectroscopy involves many spectral studies such as ultraviolet and visible spectroscopy, infrared spectroscopy, Raman spectroscopy, electron and ion energy spectroscopy, magnetic resonance spectroscopy, and X-ray spectroscopy. field. In recent years, with the advancement of technologies such as confocal Raman, microscopic Raman, and resonance Raman, as well as the improvement of the performance of Raman spectroscopy instruments (detectors, lasers, etc.), the time resolution, spatial resolution, and detection sensitivity of Raman spectroscopy technology have increased significantly. increase in magn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/65G01N21/03
Inventor 胡宪伟盛卓高炳亮石忠宁于江玉王兆文
Owner NORTHEASTERN UNIV
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