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Graphene-rare earth gadolinium co-doped Ti/SnO2-Sb composite electrode and preparation method thereof

A composite electrode and graphene technology, applied in the field of electrocatalysis, can solve problems such as low toughness, poor conductivity, and short service life, and achieve the effects of good stability, improved service life, and increased specific surface area

Pending Publication Date: 2021-12-17
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a graphene-rare earth gadolinium co-doped Ti / SnO 2 -Sb composite electrode and its preparation method, aiming to solve Ti / SnO 2 -Sb has short service life, poor conductivity and low toughness

Method used

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  • Graphene-rare earth gadolinium co-doped Ti/SnO2-Sb composite electrode and preparation method thereof
  • Graphene-rare earth gadolinium co-doped Ti/SnO2-Sb composite electrode and preparation method thereof
  • Graphene-rare earth gadolinium co-doped Ti/SnO2-Sb composite electrode and preparation method thereof

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Effect test

Embodiment 1

[0031] (1) First use a linear cutter to cut a titanium plate having a plurality of sizes of 50 mm × 20 mm (also known as the titanium substrate) in this application, first using 200 megadownloadtebiz. The sandpaper is polished to make it silver white metal gloss. Then, 50 mm × 20 mm titanium plate was carried out in a KQ-400 kDe type high power CNC ultrasonic cleaner, and the ultrasonic power was 450W, the cleaning time was 15-20 min, continued to wash the residual dirt and impurities with deionized water, and complete the titanium sheet Physical treatment. Then, the physical treatment was placed in a sodium hydroxide solution having a mass fraction of 40%, and the constant temperature was kept at a temperature of 80 ° C for 2 h, and after removal, washed with deionized water, and alkali washing. Then, the titanium sheet after washing is completely immersed in 15% oxic acid solution, and the water bath is 95 ° C, and the acid etched is heated. When the cooling is added, then the c...

Embodiment 2

[0035](1) First use the linear cutter to cut the titanium plate of 300 mm × 300 mm to a titanium plate having a plurality of sizes of 50 mm × 20 mm, first using 200 mesh crude sandpaper, and then use the 800 destination fine sandpaper to polish, so silver white metal. luster. Then, 50 mm × 20 mM titanium plate was carried out in a KQ-400 kDe high power CNC ultrasonic cleaner, and the ultrasonic power was 450W, the cleaning time was 15-20 min, and the residual dirt and impurities were continued with deionized water. Then, after the physical treatment, the titanium-based body was placed in a hydroxide solution having a mass fraction of 40%, and the constant temperature was kept at a temperature of 80 ° C for 2 h, and after removal, washed with deionized water. Then, the titanium sheet after washing is completely immersed in 15% oxic acid solution, and the water bath is 95 ° C, and the acid etched is heated. It is boil for 3 h. After the cooling is removed, clean it with distilled wa...

Embodiment 3

[0039] (1) First use the linear cutter to cut the titanium plate of 300 mm × 300 mm to a titanium plate having a plurality of sizes of 50 mm × 20 mm, first using 200 mesh crude sandpaper, and then use the 800 destination fine sandpaper to polish, so silver white metal. luster. Then, 50 mm × 20 mM titanium plate was carried out in a KQ-400 kDe high power CNC ultrasonic cleaner, and the ultrasonic power was 450W, the cleaning time was 15-20 min, and the residual dirt and impurities were continued with deionized water. Then, after the physical treatment, the titanium-based body was placed in a hydroxide solution having a mass fraction of 40%, and the constant temperature was kept at a temperature of 80 ° C for 2 h, and after removal, washed with deionized water. Then, the titanium sheet after washing is completely immersed in 15% oxic acid solution, and the water bath is 95 ° C, and the acid etched is heated. It is boil for 3 h. After the cooling is removed, clean it with distilled w...

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Abstract

The invention relates to the technical field of electro-catalysis, and discloses a preparation method of a graphene-rare earth gadolinium co-doped Ti / SnO2-Sb composite electrode. A pure titanium plate is used as a substrate, and after polishing and alkali washing, the substrate is etched by oxalic acid to obtain a pretreated titanium electrode substrate; The preparation method comprises the steps of taking tin tetrachloride as a tin source and ethylene glycol and citric acid as gelling agents to obtain a Ti / SnO2-Sb electrode, then adding graphene and rare earth gadolinium to prepare a precursor solution of the electrode, and smearing, drying and roasting the pretreated electrode to obtain the graphene-rare earth gadolinium co-doped Ti / SnO2-Sb electrode. Through doping modification of graphene and rare earth gadolinium, the service life of the electrode is greatly prolonged, the stability is high, and the electro-catalytic performance is good.

Description

Technical field [0001] The present invention relates to the field of electrocatalytic technology, in particular a graphene-rare earth ruthenium co-doped Ti / SNO 2 -SB composite electrode and its preparation method thereof. Background technique [0002] In recent decades, under the active cooperation of countries, the global economy has developed rapidly, and it has greatly improved human material life, and the cause of environmental pollution is highlighted in many countries and regions around the world. It seriously threatens human life. developing. However, existing traditional processing and purification technology is difficult to quickly degrade and purify their standards. The chlorophenol compound has high toxicity, strong chemical stability, good thermal stability, and it is difficult to remove, the residual time is very long, the degradation cycle is long, and there is carcinogenic in the human body. Hazard, the water environment can also be seriously harmful. Therefore, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F101/34C02F101/36
CPCC02F1/46109C02F2101/36C02F2101/345C02F2001/46142
Inventor 李为民崔志建任庆功陆宇涵叶彤
Owner CHANGZHOU UNIV
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