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Modified electrodes and electrocatalytic reduction method of CO2

A technology for modifying electrodes and electrodes, which is applied in the direction of electrodes, electrolysis processes, electrolysis components, etc., and can solve problems such as difficult separation of catalysts, large amount of catalysts, limitations, etc.

Inactive Publication Date: 2012-10-17
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] However, the above methods have some drawbacks: firstly, the catalyst is dissolved in the electrolyte, it is not easy to separate the catalyst from the electrolyte, and a large amount of catalyst is required; secondly, the use of these catalysts is usually subject to the degradation of these catalysts during electrolysis Restricted

Method used

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  • Modified electrodes and electrocatalytic reduction method of CO2
  • Modified electrodes and electrocatalytic reduction method of CO2
  • Modified electrodes and electrocatalytic reduction method of CO2

Examples

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Embodiment

[0171] The present invention will be described in detail below by examples and examples, but the present invention is not limited to the examples and examples.

[0172] If not otherwise stated, the various raw materials used in the following examples are all commercially available:

[0173] Glassy carbon electrodes were purchased from Tianjin Aida Hengsheng Technology Development Co., Ltd.;

Synthetic example 1

[0174] Tetraaminophthalocyanine cobalt is synthesized according to Synthesis Example 1;

[0175] Cobalt phthalocyanine (CoPc) was purchased from Strem Chemicals;

[0176] Tetrabutylammonium perchlorate (TBAP) was purchased from Shanghai Xiyu Electromechanical System Co., Ltd.;

[0177] Single-walled carbon nanotubes were obtained from East China Normal University;

[0178] N 2 , CO 2 Purchased from Shanghai Dumaoai Purification Gas Co., Ltd., all of which are 99.995% high-purity gases;

[0179] Lithium perchlorate (LiClO 4 ), acetonitrile (ACN), and tetrahydrofuran (THF) were all purchased from Sinopharm Chemical Reagent Co., Ltd., all of which were analytically pure and used directly without treatment;

[0180] 4-Nitrophthalic acid (Shanghai Linqing Chemical Technology Co., Ltd.), urea (Shanghai Zhanyun Chemical Co., Ltd.), cobalt chloride hexahydrate (Sinopharm Chemical Reagent Co., Ltd.), ammonium molybdate (Shanghai Shangsi Fine Chemical Co., Ltd.), hydrochloric acid...

Synthetic example 1 4

[0182] The synthesis of synthetic example 1 tetraamino phthalocyanine cobalt

[0183] Tetraaminophthalocyanine cobalt is synthesized according to the following synthetic method:

[0184]

[0185]

[0186] The first step is to synthesize cobalt tetranitrophthalocyanine:

[0187] 4-Nitrophthalic acid (12.66g, 0.06mol), 30g (0.5mol) of urea, 4.27g (0.0152mmol) of cobalt chloride hexahydrate, and ammonium molybdate (0.15g as a catalyst) are respectively ground evenly, placed in 500mL volumetric flask. The temperature was slowly raised to 180°C and kept for 5h. After the reaction, the product was washed with 1.0M hydrochloric acid and 1.0M sodium hydroxide, filtered with suction, and then washed with water repeatedly until neutral, and dried in a vacuum oven at a constant temperature of 80°C. The final product is cobalt tetranitrophthalocyanine (CoTNPc).

[0188] The second step is to synthesize cobalt tetraaminophthalocyanine:

[0189] 9.193g CoTNPc and 33.73g Na 2 S.H...

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Abstract

The invention discloses a modified electrode and an electrocatalytic reduction method of CO2. The modified electrode disclosed by the invention comprises an electrode substrate and a phthalocyanine polymer layer arranged on the electrode substrate. The invention also discloses a modified electrode which comprises an electrode substrate and a coating arranged on the electrode substrate, wherein the coating comprises a layer containing carbon nano-tubes and a layer containing metal phthalocyanines, or comprises a layer of a mixture containing carbon nano-tubes and metal phthalocyanines.

Description

technical field [0001] This application relates to modified electrodes and electrocatalytic reduction of CO 2 Methods. More specifically, this application relates to CO 2 Modified electrode for electrocatalytic reduction and application of the modified electrode for electrocatalytic reduction of CO 2 Methods. Background technique [0002] The emergence of global warming, accompanied by increasing atmospheric carbon dioxide concentrations, stimulates the reduction of CO 2 Research. will CO 2 Transformation into useful organic compounds is a promising and worthy of continuous exploration. Take advantage of this rich C 1 Resources can make the synthesis of fuels or chemicals cheaper. However, CO 2 It is a very stable gas, so it is not very easy to reduce and fix it and convert it into useful industrial raw materials. [0003] Currently, reducing CO 2 The main method is photocatalytic reduction (see, for example, J.M.Lehn, R.Ziessel, Proc Natl.Scad.Sci., USA, 79 (1982...

Claims

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Application Information

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IPC IPC(8): C25B11/06
Inventor 张爱健梶浦尚志李勇明
Owner SONY CORP
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