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A cuprous oxide film and its application in fuel cells

A cuprous oxide and fuel cell technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of high cost of platinum-based catalysts, hindering the commercial development and application of fuel cells, etc., and achieve easy large-scale preparation and scale Production, improved oxygen reduction efficiency, and strong controllability

Active Publication Date: 2022-05-20
JINLING INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, platinum (Pt)-based catalysts are the most widely used oxygen reduction reaction catalysts, but the high cost of platinum-based catalysts hinders the commercial development and application of fuel cells, and there is an urgent need to develop low-cost oxygen reduction catalysts (such as non-noble metal Oxygen Reduction Catalyst) and the development of simple and easy preparation method of Oxygen Reduction Catalyst

Method used

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  • A cuprous oxide film and its application in fuel cells
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  • A cuprous oxide film and its application in fuel cells

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Embodiment 1

[0035] The preparation of a cuprous oxide thin film has a left-handed chiral structure, and the steps are as follows:

[0036] In the electrolyte, a saturated calomel electrode was used as a reference electrode, a platinum black electrode was used as a counter electrode, and a quartz glass sheet sputtered with a 5nm gold layer on the surface was used as a working electrode, and a constant voltage of -0.5V was applied to the working electrode to deposit Time 5min; During the deposition and growth of the film, the chiral molecules in the electrolyte induce the reactant atoms along the The preferred orientation of the crystal plane grows; after a period of deposition and growth, a cuprous oxide film with a left-handed chiral structure is obtained.

[0037] The electrolyte is L-chiral tartaric acid, CuSO 4 ·5H 2 The mixed solution of O and NaOH, the solvent is deionized water; wherein, the concentration of chiral tartaric acid is 0.2mol / L, CuSO 4 ·5H 2 The concentration of O ...

Embodiment 2

[0042] The preparation of a cuprous oxide thin film has a left-handed chiral structure, and the steps are as follows:

[0043] In electrolyte, with saturated calomel electrode as reference electrode, with platinum black electrode as counter electrode, with gold plate as working electrode, apply-0.6V constant voltage to working electrode, deposition time 20min; During the process, chiral molecules in the electrolyte induce reactant atoms along The preferred orientation of the crystal plane grows; after a period of deposition and growth, a cuprous oxide film with a left-handed chiral structure is obtained.

[0044] The electrolyte is L-chiral tartaric acid, CuSO 4 ·5H 2 The mixed solution of O and NaOH, the solvent is deionized water; wherein, the concentration of chiral tartaric acid is 0.2mol / L, CuSO 4 ·5H 2 The concentration of O is 0.2mol / L, the concentration of NaOH is 3mol / L; 4 ·5H 2 The O solution is mixed evenly so that the Cu 2+ Ions are complexed with chiral ta...

Embodiment 3

[0050] The preparation of a cuprous oxide thin film has a left-handed chiral structure, and the steps are as follows:

[0051] In electrolyte, with saturated calomel electrode as reference electrode, with platinum black electrode as counter electrode, with FTO glass as working electrode, apply-0.7V constant voltage to working electrode, deposition time 30min; During the process, chiral molecules in the electrolyte induce reactant atoms along The preferred orientation of the crystal plane grows; after a period of deposition and growth, a cuprous oxide film with a left-handed chiral structure is obtained.

[0052] The electrolyte is L-chiral tartaric acid, CuSO 4 ·5H 2 The mixed solution of O and NaOH, the solvent is deionized water; wherein, the concentration of chiral tartaric acid is 0.2mol / L, CuSO 4 ·5H 2 The concentration of O is 0.2mol / L, the concentration of NaOH is 3mol / L; 4 ·5H 2 The O solution is mixed evenly so that the Cu 2+ Ions are complexed with chiral tar...

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Abstract

The invention relates to the field of inorganic materials, in particular to a cuprous oxide film and its application in fuel cells. The cuprous oxide thin film provided by the invention is used as an oxygen reduction reaction catalyst and has a left-handed chiral structure. The invention provides that the left-handed chiral structure of the cuprous oxide film can cause cross polarization of the electromagnetic field, and electrons are spin-polarized when flowing through the cuprous oxide film with the left-handed chiral structure, and the potential barrier for electrons to reduce oxygen is reduced, and the copper oxide The oxygen reduction efficiency of the film is improved. The invention provides that the cuprous oxide thin film can be applied in the dye cell and can reduce the development cost of the fuel cell.

Description

technical field [0001] The invention relates to the field of inorganic materials, in particular to a cuprous oxide film and its application in fuel cells. Background technique [0002] With the depletion of fossil energy, finding and utilizing green new energy has become the only way for the development of human society. The fuel cell can directly convert the chemical energy in the fuel into electrical energy through an electrochemical reaction. It has the advantages of high energy conversion efficiency and no pollution. It is a new energy device with great potential and becomes one of the important directions for the development of clean energy in the future. . Compared with the anode reaction, the oxygen reduction reaction at the cathode of the battery is a slow kinetic process, and the efficiency of the cathode oxygen reduction reaction becomes a key constraint factor that limits the improvement of fuel cell performance. At present, platinum (Pt)-based catalysts are the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/90H01M4/88C25D9/04
CPCH01M4/9016H01M4/9075H01M4/8853C25D9/04Y02E60/50
Inventor 张文妍杨玮民刘飞叶原丰郝凌云
Owner JINLING INST OF TECH
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