Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of platinum-containing carbon layer supported foam nickel electrode for water electrolysis and preparation method thereof

A nickel foam and electrolyzed water technology, which is applied to electrodes, electrolytic components, electrolytic processes, etc., can solve the problems of complex preparation methods, poor hydrogen evolution activity, and large amount of Pt, and achieve simple equipment, short synthesis time, and reduced reaction potential. Effect

Active Publication Date: 2022-08-09
上海航天智慧能源技术有限公司 +1
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a platinum-containing carbon layer loaded nickel foam electrolytic water electrode to solve the problems of large amount of Pt, poor hydrogen evolution activity and relatively complicated preparation methods in the prior art.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of platinum-containing carbon layer supported foam nickel electrode for water electrolysis and preparation method thereof
  • A kind of platinum-containing carbon layer supported foam nickel electrode for water electrolysis and preparation method thereof
  • A kind of platinum-containing carbon layer supported foam nickel electrode for water electrolysis and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0030] (1) Preparation of EDTA-Pt solution: weigh 0.425mg Na 2 -EDTA·2H 2 O was dissolved in 17 ml 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, and the concentration is 0.025g / L;

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

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

Embodiment 2

[0034] (1) Preparation of 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, and the concentration is 0.100g / L;

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

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

Embodiment 3

[0038] (1) Preparation of 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 evenly, and the concentration is 0.100g / L.

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

[0040] (3) Preparation of NF@Pt-C: The EDTA-Pt / NF support was placed in a tube furnace, and in an argon atmosphere with a flow rate of 100 sccm, the temperature was increased to 330 °C at a heating rate of 3 °C / min, and the temperature was kept warm. After calcination for 1.2 h, after cooling to room temperature, a Pt-containing carbon layer supported foamed nickel el...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
concentrationaaaaaaaaaa
quality scoreaaaaaaaaaa
Login to View More

Abstract

The invention provides a platinum-containing carbon layer-loaded nickel foam electrode for water electrolysis and a preparation method thereof. Nickel foam is used as a self-supporting electrode carrier; carbon layer particles containing nano-Pt are supported on the surface of the nickel foam to form a uniform nano-array, The mass fraction of the nano-Pt is 0.1% to 1.0%; the preparation method is as follows: disodium ethylenediaminetetraacetate (EDTA-Na) and chloroplatinic acid hexahydrate (H 2 PtCl 6 •6H 2 O) As a C source and a Pt source, with nickel foam as a self-supporting electrode carrier, the carbon layer particles containing nano-Pt are uniformly supported on the nickel foam by spraying and calcination. The preparation method, raw materials and equipment of the invention are simple, the synthesis time is short, the obtained catalyst electrode does not need further processing, can be directly used for electrolysis of water to produce hydrogen, is stable and efficient, and is suitable for industrialized large-scale production.

Description

technical field [0001] The invention belongs to the technical field of electrolytic water electrodes, and in particular relates to a platinum-containing carbon layer-supported foam 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 energy source that is easy to store and transport, hydrogen energy has attracted more and more attention. With the development of renewable power technology, the conversion of instantaneous electrical energy into hydrogen energy that can be easily stored and transported has received more and more attention. [0003] The kinetics of hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) during water electrolysis are slow, resulting in excessive overpotentials and hi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
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