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Anode Sn-Ru-Ir/TiO2 nano-particle catalyst for seawater electrolytic reaction and preparation method thereof

A nanoparticle, electrolytic reaction technology, applied in the field of anode catalyst and its preparation, can solve the problems of high material cost, easy loss of active component life, limited service life, etc., and achieve simple preparation method, excellent electrocatalytic activity and stability Effect

Inactive Publication Date: 2012-01-04
NANJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The metal oxide coated anode invented by Beer in the 1960s was a breakthrough in industrial anodes, but due to its active component RuO 2 Easily lost resulting in a limited lifespan
[0005] However, the main problem of the industrial application of electrolysis technology is the high material cost, and the key to reducing the cost is the selection and preparation process of the cathode and anode electrocatalysts.

Method used

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  • Anode Sn-Ru-Ir/TiO2 nano-particle catalyst for seawater electrolytic reaction and preparation method thereof
  • Anode Sn-Ru-Ir/TiO2 nano-particle catalyst for seawater electrolytic reaction and preparation method thereof
  • Anode Sn-Ru-Ir/TiO2 nano-particle catalyst for seawater electrolytic reaction and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Sn-Ru-Ir / TiO in Seawater Electrolysis 2 The anode nanoparticle catalyst is prepared by a stepwise homogeneous precipitation method, comprising the following steps:

[0031] 1. Weigh 60 mg of synthesized titanium dioxide nanoparticles, add 0.01468 g of SnCl 4 ·5H 2 O, 5ml 0.067mol / L RuCl 3 2H 2 O, 7.5ml 0.067mol / L IrCl 3 ·H 2 O solution, then adjust the pH value of the mixture solution step by step from 1 to 1.7-2.5, heat at 80-100°C for 10min-2h; further adjust the pH value of the solution to 3-4, and heat at 80-100°C for 10min-2h; finally adjust the solution pH value to 9-10, heating at 80-100°C for 10min-2h, high-speed stirring (or ultrasonic oscillation) for 30 minutes to 48 hours to make the mixture uniform (component A).

[0032] 2. After washing the obtained component A with water, in 60-80 o C is dried, and calcined at 350-800° C. in air for 0.5-1 h to obtain solid powder B; that is, to obtain a nanoparticle catalyst supported by a titanium dioxide nanocar...

Embodiment 2

[0036] Sn-Ru-Ir / TiO in Seawater Electrolysis 2 The anode nanoparticle catalyst is prepared by a stepwise homogeneous precipitation method, comprising the following steps:

[0037] 1. Weigh 60 mg of synthesized titanium dioxide nanotubes, add 0.01468 g of SnCl 4 ·5H 2 O, 5ml 0.067mol / L RuCl 3 2H 2 O, 7.5ml 0.067mol / L IrCl 3 ·H 2 O solution, then adjust the pH value of the mixture solution step by step from 1 to 1.7-2.5, heat at 80-100°C for 10min-2h; further adjust the pH value of the solution to 3-4, and heat at 80-100°C for 10min-2h; finally adjust the solution pH value to 9-10, heating at 80-100°C for 10min-2h, high-speed stirring (or ultrasonic oscillation) for 30 minutes to 48 hours to make the mixture uniform (component A).

[0038] 2. After washing the obtained component A with water, 60-80 o C is dried, and calcined at 350-800° C. in air for 0.5-1 h to obtain solid powder B; that is, to obtain a nanoparticle catalyst supported by a titanium dioxide nanocarrier. ...

Embodiment 3

[0042] Sn-Ru-Ir / TiO in Seawater Electrolysis 2 The anode nanoparticle catalyst is prepared by a stepwise homogeneous precipitation method, comprising the following steps:

[0043] 1. Weigh 60 mg of synthesized titanium dioxide nanofibers, add 0.01468 g of SnCl 4 ·5H 2 O, 5ml 0.067mol / L RuCl 3 2H 2 O, 7.5ml 0.067mol / L IrCl 3 ·H 2 O solution, then adjust the pH value of the mixture solution step by step from 1 to 1.7-2.5, heat at 80-100°C for 10min-2h; further adjust the pH value of the solution to 3-4, and heat at 80-100°C for 10min-2h; finally adjust the solution pH value to 9-10, heating at 80-100°C for 10min-2h, high-speed stirring (or ultrasonic oscillation) for 30 minutes to 48 hours to make the mixture uniform (component A).

[0044] 2. After washing the obtained component A with water, 60-80 o C is dried, and calcined at 350-800° C. in air for 0.5-1 h to obtain solid powder B; that is, to obtain a nanoparticle catalyst supported by a titanium dioxide nanocarrier. ...

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Abstract

The invention provides an anode Sn-Ru-Ir / TiO2 nano-particle catalyst for a seawater electrolytic reaction and a preparation method thereof. The catalyst is composed by that: IrxRu1-xSnyOz metal oxide nano-particles are loaded on a titanium dioxide nano-particle vector, and the titanium dioxide vector accounts for 1 to 20 mass percent. The catalyst is prepared by adopting a stepwise homogeneous precipitation method in the following steps of: mixing soluble SnIV, RuIII and IrIII salt solutions and the titanium dioxide vector; regulating the PH value, and heating; homogeneously generating Sn(OH)4, Ru(OH)3 and Ir2O3.H2O precipitates stepwise by the soluble SnIV, RuIII and IrIII salts, and performing stirring or ultrasonic oscillation to form suspension; and washing, drying and calcining the suspension to prepare the anode nano-particle catalyst. The catalyst has small microcrystalline particles, high electrocatalytic performance and excellent stability; and the preparation method is simple and economic, and is suitable for industrial production in scale.

Description

technical field [0001] The invention relates to an anode catalyst for an electrolytic chlorine production reaction and a preparation method thereof, in particular to an anode Sn-Ru-Ir / TiO for a seawater electrolysis reaction 2 A nanometer particle catalyst, and a method for preparing the anode nanoparticle catalyst by utilizing the stepwise homogeneous precipitation principle. Background technique [0002] Facilities such as ships, coastal power plants, and offshore oil and gas fields are in direct contact with seawater, and are fouled and corroded by marine organisms, which affects their efficient and safe operation. At home and abroad, great attention is paid to the research of anti-fouling and anti-corrosion technologies for marine ships and facilities. At present, four anti-fouling technologies are widely promoted, including copper-aluminum anode electrolytic anti-fouling and anti-corrosion, copper-chlorine comprehensive anti-fouling, anti-fouling paint and electrolytic ...

Claims

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Application Information

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IPC IPC(8): B01J23/62B01J37/03C25B11/08C25B1/26
Inventor 陈煜梁燕丁小余周益明唐亚文陆天虹
Owner NANJING NORMAL UNIVERSITY
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