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Copper oxide awl micro-level and nano-level array structure material, and preparation method and electrode apparatus thereof

A dual-stage array and structural material technology, applied in chemical instruments and methods, catalyst activation/preparation, battery electrodes, etc., can solve the problem of reducing the catalytic activity of platinum, and achieve the effects of increased specific surface area, enhanced activity, and high catalytic activity

Inactive Publication Date: 2013-06-12
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a copper oxide needle-cone micro-nano dual-stage array structure material to solve the problem of incomplete oxidation of carbon monoxide produced in the electrocatalytic oxidation process of alcohols in the fuel cells of the prior art, which generally use platinum as a catalyst. The product will be largely adsorbed on the surface of precious metals such as platinum, which greatly reduces the technical problem of platinum's catalytic activity

Method used

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  • Copper oxide awl micro-level and nano-level array structure material, and preparation method and electrode apparatus thereof
  • Copper oxide awl micro-level and nano-level array structure material, and preparation method and electrode apparatus thereof
  • Copper oxide awl micro-level and nano-level array structure material, and preparation method and electrode apparatus thereof

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Experimental program
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Embodiment 1

[0038] The steps of preparing copper oxide needle-cone micro-nano bi-level array structure material are as follows.

[0039] (1) Take the copper sheet and cut it appropriately, and degrease, pickle and activate the surface of the copper sheet. That is, the copper flakes are electrolytically deoiled for 30 seconds under the condition of 5.0A / dm2, washed with distilled water, then pickled in 25% sulfuric acid for 15 seconds, washed with distilled water, and then activated in a 0.25g / L palladium chloride solution.

[0040] (2) Place the copper sheet processed in step (1) in the electroplating solution, with the copper sheet as the cathode and the copper plate as the anode. The copper sheet, the copper plate, the power supply and the electroplating solution form a current loop through the wires. The composition of the electroplating solution is: copper sulfate 10g / L, NiCl0.5g / L, boric acid 30g / L, triamine citrate 12g / L, PEG0.1g / L, sodium hypophosphite 15g / L, chloride ion 10ppm, electro...

Embodiment 2

[0047] The steps of preparing copper oxide needle-cone micro-nano bi-level array structure material are as follows.

[0048] (1) Take the copper sheet and cut it appropriately, and degrease, pickle and activate the surface of the copper sheet. That is, the copper flakes are electrolytically deoiled for 60 seconds under the condition of 4.0A / dm2, washed with distilled water, then pickled in 15% sulfuric acid for 18 seconds, washed with distilled water, and then activated in a 0.15g / L palladium chloride solution.

[0049] (2) Place the copper sheet processed in step (1) in the electroplating solution, with the copper sheet as the cathode and the copper plate as the anode. The copper sheet, the copper plate, the power supply and the electroplating solution form a current loop through the wires. The composition of the electroplating solution is: copper sulfate 20g / L, NiCl2.0g / L, boric acid 10g / L, sodium citrate 24g / L, PEG1g / L, sodium hypophosphite 10g / L, chloride ion 50ppm, plating bat...

Embodiment 3

[0056] The steps of preparing copper oxide needle-cone micro-nano bi-level array structure material are as follows.

[0057] (1) Take the copper sheet and cut it appropriately, and degrease, pickle and activate the surface of the copper sheet. That is, the copper flakes are first electrolytically deoiled under the condition of 4.5A / dm2 for 45s, washed with distilled water, then pickled in 20% sulfuric acid for 20s, washed with distilled water, and then activated in a 0.2g / L palladium chloride solution.

[0058] (2) Place the copper sheet processed in step (1) in the electroplating solution, with the copper sheet as the cathode and the copper plate as the anode. The copper sheet, the copper plate, the power supply and the electroplating solution form a current loop through the wires. The composition of the electroplating solution is: copper sulfate 15g / L, NiCl1.2g / L, boric acid 20g / L, EDTA18g / L, PEG0.5g / L, sodium hypophosphite 30g / L, chloride ion 30ppm, electroplating bath temperatu...

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Abstract

The invention relates to the direct ethanol fuel cell field, and especially relates to a copper oxide awl micro-level and nano-level array structure material, and a preparation method and an electrode apparatus thereof. The copper oxide awl micro-level and nano-level array structure material comprises a micro-level awl and a nano-level awl, the micro-level awl grows on the surface of a copper sheet, the nano-level awl grows on the surface of the micro-level awl, each of the surface of the copper sheet, the surface of the micro-level awl and the surface of the nano-level awl is provided with copper oxide, and the surface of copper oxide is covered with a perfluorosulfonic acid film. Compared with materials in the prior art, the copper oxide awl micro-level and nano-level array structure material has a platinum-like ethanol electrocatalytic property, and has the advantages of high catalytic activity, successful avoiding of the catalyst positioning phenomenon, and great reduction of the cost as an ethanol fuel cell anode catalyst.

Description

Technical field [0001] The present invention relates to the field of direct ethanol fuel cells, in particular to a copper oxide needle cone micro-nano double-stage array structure material used for direct ethanol fuel cell electrodes and a preparation method thereof. 成的electrode device. Background technique [0002] In 1839, the first fuel cell appeared in human history. At that time, both the cathode and anode in the battery used platinum as a catalyst. Since then, although there have been many studies on fuel cell catalysts, almost none of these studies have jumped out of the platinum circle. The catalysts in commercial fuel cells that we can see today basically contain platinum. Platinum is used as a catalyst, especially in the electrocatalytic oxidation process of alcohols, the incomplete oxidation products of carbon monoxide produced will be adsorbed on the surface of platinum and other precious metals in large quantities, thereby greatly reducing the catalytic activity of p...

Claims

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Application Information

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IPC IPC(8): H01M4/90H01M4/86B01J23/72B01J37/34
CPCY02E60/50
Inventor 吴杰飞王红宾王宁黄本成施云峰李明
Owner SHANGHAI JIAO TONG UNIV
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