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Glassy carbon electrode surface roughing preparation method based on ultra-short pulse laser micromachining

An ultra-short pulse laser and electrode surface technology, which is applied in laser welding equipment, metal processing equipment, welding equipment, etc., can solve the problems of high surface treatment quality and environmental protection requirements, and achieve fine processing, wide application prospects, and small thermal effects.

Inactive Publication Date: 2017-07-07
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology

[0004] The present invention aims at the problem of high surface treatment quality and environmental protection requirements, and proposes a preparation method for surface roughening of glassy carbon electrodes based on ultrashort pulse laser micromachining. Carbon electrodes can meet the needs of industrial development

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  • Glassy carbon electrode surface roughing preparation method based on ultra-short pulse laser micromachining
  • Glassy carbon electrode surface roughing preparation method based on ultra-short pulse laser micromachining

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Embodiment Construction

[0014] The surface of glassy carbon was roughened with different pulse width, pulse frequency, pulse power and processing time. The ultra-short pulse laser roughens the surface of the glassy carbon electrode, which will produce a micro-nano structure on the surface, greatly enhance the catalytic efficiency of the electrode, and greatly improve the signal-to-noise ratio.

[0015] Such as figure 1 The schematic diagram of the device for processing glassy carbon electrodes is shown. The emitted light of the laser is aimed at the galvanometer, and the reflected light of the galvanometer is directly hit on the carbon glassy carbon electrode on the fixed processing platform. A tunable picosecond pulsed laser roughens glassy carbon electrodes. The specific surface roughening preparation method of the glassy carbon electrode is as follows:

[0016] 1. Before using the picosecond pulse laser to treat the glassy carbon electrode, first use 95% ethanol to ultrasonically clean the elect...

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Abstract

The invention relates to a glassy carbon electrode surface roughing preparation method based on ultra-short pulse laser micromachining. The glassy carbon surface is subjected to roughing treatment by using different pulse widths, pulse frequencies, pulse power and machining time. The glassy carbon electrode surface is subjected to roughing through an ultra-short pulse laser, and a micro-nano structure can be generated on the glassy carbon electrode surface, so that electrode catalytic efficiency is greatly strengthened, and the signal-to-noise ratio is greatly increased. A glassy carbon electrode is subjected to roughing treatment by using a picosecond pulse laser, the heat effect is small, machining is fine, the clean and environment-friendly and economic and efficient effects are achieved, and the application prospects of the glassy carbon electrode subjected to roughing treatment are wider in the aspects of electrochemical detection and oxidation-reduction reactions.

Description

technical field [0001] The invention relates to a surface treatment technology, in particular to a preparation method for roughening the surface of a glassy carbon electrode based on ultrashort pulse laser micromachining. Background technique [0002] Glassy carbon electrodes are increasingly widely used in electrochemical experiments or electroanalytical chemistry, such as the determination of lead content by voltammetry, and chemically modified electrodes made of glassy carbon electrodes as substrates are used to determine silver and other elements. At present, the main methods for improving the activity of glassy carbon electrodes are ball milling [Prior Technology 1: Xu Shunjian, Effect of Glassy Carbon Ball Milling on Catalytic Reduction of Iodine Triion, Power Technology, Vol.39, No.9, 1820-1823 (2015)], electrochemical method [Prior Art 2: Xu Jinrui, electrochemically modified glassy carbon electrode and its anodic stripping voltammetry determination of copper, Electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/352B23K26/402B23K26/60B23K26/70
CPCB23K26/402B23K26/352B23K26/60B23K26/70
Inventor 冯吉军曹启普曾和平
Owner UNIV OF SHANGHAI FOR SCI & TECH
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