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Novel platinum-containing carbon layer loaded foamed nickel water electrolysis electrode and preparation method thereof

A technology of foamed nickel and electrolyzed water, applied in electrodes, electrolysis components, electrolysis process, etc., can solve the problems of large amount of Pt, complex preparation method, poor hydrogen evolution activity, etc., and achieves simple equipment, reduced reaction potential, and short synthesis time. Effect

Active Publication Date: 2021-06-01
上海航天智慧能源技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a novel platinum-containing carbon layer-supported foamed nickel electrolysis water electrode to solve the problems in the prior art that the amount of Pt is large, the hydrogen evolution activity is poor, and the preparation method is relatively complicated.

Method used

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  • Novel platinum-containing carbon layer loaded foamed nickel water electrolysis electrode and preparation method thereof
  • Novel platinum-containing carbon layer loaded foamed nickel water electrolysis electrode and preparation method thereof
  • Novel platinum-containing carbon layer loaded foamed nickel water electrolysis electrode and preparation method thereof

Examples

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Embodiment 1

[0029] Preparation of platinum-containing carbon layer-supported foamed nickel electrolysis water electrode:

[0030] (1) Prepare EDTA-Pt solution: weigh 0.425mg Na 2 -EDTA·2H 2 O was dissolved in 17 ml of methanol and sonicated for 60 min, then 1.75 μL of H was added dropwise while sonicating 2 PtCl 6 •6(H 2 0), continue ultrasonic 60min, obtain the EDTA-Pt solution that mixes homogeneously, concentration is 0.025g / L;

[0031] (2) Preparation of EDTA-Pt / NF carrier: Use a pipette to pipette 1.7ml of the prepared EDTA-Pt solution into an atomized spray bottle, pick up clean nickel foam with tweezers, and spray the solution evenly on the Nickel foam; then dry in a vacuum oven at 60°C for 12 hours to obtain an EDTA-Pt / NF carrier;

[0032] (3) Preparation of NF@Pt-C: The EDTA-Pt / NF support was placed in a tube furnace, and the temperature was raised to 350 °C at a rate of 5 °C / min in an argon atmosphere with a flow rate of 100 sccm, and kept Calcined for 1 h, and after cooli...

Embodiment 2

[0034] (1) Prepare EDTA-Pt solution: weigh 1.7mg Na 2 -EDTA·2H 2 O was dissolved in 17 ml methanol and sonicated for 60 min, then 7 μL of H was added dropwise while sonicating 2 PtCl 6 •6(H 2 0), continue ultrasonic 60min, obtain the EDTA-Pt solution that mixes homogeneously, concentration is 0.100g / L;

[0035] (2) Preparation of EDTA-Pt / NF carrier: Use a pipette to pipette 1.7ml of the prepared EDTA-Pt solution into an atomized spray bottle, pick up clean nickel foam with tweezers, and spray the solution evenly on the Nickel foam; then dry in a vacuum oven at 65°C for 10 hours to obtain an EDTA-Pt / NF carrier;

[0036] (3) Preparation of NF@Pt-C: The EDTA-Pt / NF support was placed in a tube furnace, and the temperature was raised to 300 °C at a rate of 5 °C / min in an argon atmosphere with a flow rate of 80 sccm, and kept Calcined for 1.8h, and cooled to room temperature to obtain a Pt-containing carbon layer supported nickel foam electrolysis water electrode (NF@Pt-C), the...

Embodiment 3

[0038] (1) Prepare EDTA-Pt solution: weigh 1.7mg Na 2 -EDTA·2H 2 O was dissolved in 17 ml methanol and sonicated for 60 min, then 7 μL of H was added dropwise while sonicating 2 PtCl 6 •6(H 2 0), continue ultrasonic 60min, obtain the EDTA-Pt solution that mixes homogeneously, concentration is 0.100g / L;

[0039] (2) Preparation of EDTA-Pt / NF carrier: Use a pipette to pipette 1.7ml of the prepared EDTA-Pt solution into an atomized spray bottle, pick up clean nickel foam with tweezers, and spray the solution evenly on the Nickel foam; then dry in a vacuum oven at 50°C for 15 hours to obtain an EDTA-Pt / NF carrier;

[0040] (3) Preparation of NF@Pt-C: The EDTA-Pt / NF support was placed in a tube furnace, and the temperature was raised to 330 °C at a rate of 3 °C / min in an argon atmosphere with a flow rate of 100 sccm, and kept Calcined for 1.2h, and cooled to room temperature to obtain a Pt-containing carbon layer supported nickel foam electrolytic water electrode (NF@Pt-C), th...

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Abstract

The invention provides a novel platinum-containing carbon layer loaded foamed nickel water electrolysis electrode and a preparation method thereof. Foamed nickel is used as a self-supporting electrode carrier; carbon layer particles containing nano Pt are loaded on the surface of the foamed nickel to form a uniform nano array, and the mass fraction of the nano Pt is 0.1%-1.0%; the preparation method comprises the steps: respectively taking disodium ethylene diamine tetraacetate (EDTA-Na) and chloroplatinic acid hexahydrate (H2PtCl6.6H2O) as a C source and a Pt source, taking foamed nickel as a self-supporting electrode carrier, and uniformly loading carbon layer particles containing nano Pt on the foamed nickel in a spraying and calcining manner. According to the preparation method, raw materials and equipment are simple, the synthesis time is short, and the obtained catalyst electrode does not need to be further processed, can be directly used for electrolyzing water to produce hydrogen, is stable and efficient and is suitable for industrial large-scale production.

Description

technical field [0001] The invention belongs to the technical field of electrolytic water electrodes, and in particular relates to a novel platinum-containing carbon layer-loaded foamed nickel electrolytic water electrode and a preparation method thereof. Background technique [0002] Electrochemical water splitting has made great progress since it was first observed in the 18th century that electricity can split water into hydrogen and oxygen. new energy resource. As an efficient, clean, zero-emission, and easy-to-storage energy, hydrogen energy has attracted more and more attention. With the development of renewable electricity technology, the conversion of instantaneous electric energy into hydrogen energy that is easy to store and transport has received more and more attention. [0003] The kinetics of the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) during water electrolysis are slow, resulting in high overpotential and high energy consumption...

Claims

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Application Information

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IPC IPC(8): C25B11/091C25B11/054C25B11/061C25B1/04C25B11/031
CPCC25B1/04Y02P20/133
Inventor 刘猛冯毅徐栎亚宋天琦聂旭文赖春艳
Owner 上海航天智慧能源技术有限公司