Phosphated stainless steel material and its preparation method and application

A technology of stainless steel and 304 stainless steel, applied in metal material coating process, solid-state diffusion coating, coating, etc., can solve the problems of high cost, poor phosphating efficiency, and consumption of raw materials

Active Publication Date: 2020-10-27
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for preparing phosphating stainless steel materials, so as to solve the problems of consuming raw materials, poor phosphating efficiency and high cost in the preparation of phosphating stainless steel electrodes

Method used

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  • Phosphated stainless steel material and its preparation method and application
  • Phosphated stainless steel material and its preparation method and application
  • Phosphated stainless steel material and its preparation method and application

Examples

Experimental program
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Embodiment 1

[0025] The area of ​​2 pieces is 2X 2.3cm respectively 2 The stainless steel 304 material and 100ul phosphorus trichloride were put into a quartz tube, vacuum sealed in a liquid nitrogen environment, and then put into a tube furnace, and calcined at 650 ° C for 1 h to obtain the phosphating stainless steel material. Tested in 1M KOH, the OER performance of the phosphating stainless steel electrode is 100mA / cm 2 Under the current density, the overpotential is only 260mV, and the HER performance is 100mA / cm in 1MKOH 2 Under the current density, the overpotential is only 325mV.

Embodiment 2

[0027] The area of ​​2 pieces is 2X 2.3cm respectively 2 The stainless steel 304 material and 100ul of phosphorus trichloride were put into a quartz tube, vacuum sealed in a liquid nitrogen environment, and then put into a tube furnace, and calcined at 700 ° C for 1 hour to obtain the phosphating stainless steel material. Tested in 1M KOH, the OER performance of the phosphating stainless steel electrode is 100mA / cm 2 Under current density, the overpotential is only 300mV, and the HER performance is 100mA / cm in 1MKOH 2 Under the current density, the overpotential is only 307mv.

Embodiment 3

[0029] The area of ​​2 pieces is 2X 2.3cm respectively 2 The stainless steel 304 material and 100ul of phosphorus trichloride were put into a quartz tube, vacuum sealed in a liquid nitrogen environment, and then put into a tube furnace, and calcined at 600 ° C for 1 hour to obtain the phosphating stainless steel material. Tested in 1M KOH, the OER performance of the phosphating stainless steel electrode is 100mA / cm 2 Under current density, the overpotential is only 330mV, and the HER performance is 100mA / cm in 1MKOH 2 Under the current density, the overpotential is only 300mv.

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Abstract

The invention discloses a preparation method of a phosphated stainless steel material, and the preparation method comprises the following steps: adding a stainless steel material and a phosphorus source into a heating container, sealing, and calcining at 400-700 DEG C for 1-2h to obtain the phosphated stainless steel material. The invention also discloses the phosphated stainless steel material prepared by the method and application of the phosphated stainless steel material as a catalyst for electrolyzing water, and electrochemically synthesizing and degrading organic matters. The preparationmethod of the phosphated stainless steel material greatly saves raw materials, is efficient and economical, and is easy for industrialized production.

Description

technical field [0001] The invention relates to the technical field of electrolysis water catalysis materials, in particular to a phosphating stainless steel material for electrolysis water catalysis, a preparation method and application thereof. Background technique [0002] Hydrogen, the cleanest fuel available, is currently typically produced through steam methane reforming. However, due to the continuous depletion of fossil fuels and greater pollution, the carbon dioxide in the atmosphere has increased greatly, making our living environment worse and worse, and it is urgent to find and explore other clean and efficient energy sources. As an efficient and clean energy source, hydrogen energy has a high combustion calorific value, and the heat generated by burning the same mass of hydrogen is about 3 times that of gasoline, 3.9 times that of alcohol, and 4.5 times that of coke. The product of hydrogen combustion is water. Hydrogen energy is the cleanest energy source in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/04C25B11/06C23C8/62C25B1/04
CPCC23C8/62C25B1/04C25B11/075Y02E60/36
Inventor 杨鸿斌肖遥郭春显胡芳馨
Owner SUZHOU UNIV OF SCI & TECH
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