(FeaCobNic)xMyRz oxygen evolution catalytic material and application to anode oxygen evolution electrode

A catalytic material and oxygen evolution electrode technology, applied in electrodes, electrolysis components, electrolysis process, etc., can solve the problems of electrode reaction deviation from equilibrium electrode potential, catalytic activity needs to be improved, limit the development of electrolytic water industry, etc., to reduce oxygen evolution Effects of overpotential, excellent catalytic activity, and improved energy efficiency

Active Publication Date: 2018-10-16
北京自然天空科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of electrolyzing water, the electrode surface, especially the surface of the anode oxygen evolution electrode, will undergo polarization, causing the electrode reaction to deviate from the equilibrium electrode potential, thereby causing overpotential, which is the main reason for the high energy consumption and low efficiency of electrolyze

Method used

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  • (FeaCobNic)xMyRz oxygen evolution catalytic material and application to anode oxygen evolution electrode
  • (FeaCobNic)xMyRz oxygen evolution catalytic material and application to anode oxygen evolution electrode
  • (FeaCobNic)xMyRz oxygen evolution catalytic material and application to anode oxygen evolution electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Preparation of Fe 40 co 8 Ni 40 B 10 Ru 2 Oxygen Evolution Catalytic Amorphous Alloy Electrode

[0074] Step 1: Dispensing ingredients according to the target ingredients;

[0075] According to the atomic percentage of Fe 40 co 8 Ni 40 B 10 Ru 2 The target composition is to weigh the elemental elements of Fe, Co, Ni, B, Ru, among which the B element can be replaced by FeB pre-alloyed, and the mass percentage purity of each element is not less than 99.0%;

[0076] Step 2: Melting the master alloy;

[0077] Mix the elements of Fe, Co, Ni, FeB, and Ru weighed in step 1 evenly, and melt them in a vacuum arc melting furnace to obtain Fe 40 co 8 Ni 40 B 10 Ru 2 target alloy ingot;

[0078] Melting parameters: the melting protective atmosphere is argon with a mass percentage of 99.999%;

[0079] Vacuum degree is 8.5×10 -3 Pa;

[0080] The melting current is 150A;

[0081] Melting time: 2 minutes for each smelting, 4 times for smelting;

[0082] Step 3: Pre...

Embodiment 2

[0098] Preparation of Fe 35 co 12 Ni 35 Si 14 Nb 4 Oxygen Evolution Catalytic Amorphous Alloy Electrode

[0099] Step 1: Ingredients

[0100] According to Fe 35 co 12 Ni 35 Si 14 Nb 4 The target composition weighs the elemental elements of Fe, Co, Ni, Si, and Nb, and the mass percentage purity of each element is not less than 99.0%;

[0101] Step 2: Melting the master alloy

[0102] Mix the Fe, Co, Ni, Si, and Nb elements weighed in step 1 evenly, and melt them in a vacuum arc melting furnace to obtain Fe 35 co 12 Ni 35 Si 14 Nb 4 target alloy ingot;

[0103] Melting parameters: the melting protective atmosphere is argon with a mass percentage of 99.999%;

[0104] Vacuum degree is 9×10 -3 Pa;

[0105] The melting current is 120A;

[0106] Melting time: 2 minutes for each smelting, 4 times for smelting;

[0107] Step 3: Preparation of target alloy strips by melt spin quenching method

[0108] The master alloy obtained in step 2 is mechanically broken into ...

Embodiment 3

[0123] Preparation of Fe 32 co 14 Ni 32 Si 8 P 8 Nb 4 Mo 2 Oxygen Evolution Catalytic Amorphous Alloy Electrode

[0124] Step 1: Ingredients

[0125] According to Fe 32 co 14 Ni 32 Si 8 P 8 Nb 4 Mo 2 The target composition weighs the elemental elements of Fe, Co, Ni, Si, P, Nb, and Mo (where P can be replaced by FeP), and the mass percentage purity of each element is not less than 99.0%;

[0126] Step 2: Melting the master alloy

[0127] Mix the Fe, Co, Ni, Si, P (or FeP), Nb, and Mo elements weighed in step 1 evenly, and melt them in a vacuum arc melting furnace to obtain Fe 32 co 14 Ni 32 Si 8 P 8 Nb 4 Mo 2 target alloy ingot;

[0128] Melting parameters: the melting protective atmosphere is argon with a mass percentage of 99.999%;

[0129] Vacuum degree is 9×10 -3 Pa;

[0130] The melting current is 120A;

[0131] Melting time: 2.5 minutes for each smelting, 4 times for smelting;

[0132] Step 3: Preparation of target alloy strips by melt spin que...

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Abstract

The invention discloses a (FeaCobNic)xMyRz oxygen evolution catalytic material and an application to an anode oxygen evolution electrode. The atomic percent of the (FeaCobNic)xMyRz oxygen evolution catalytic material is that a plus b plus c is equal to 1, wherein a is larger than or equal to 0.5 and is less than or equal to 0.94, b is larger than or equal to 0.01 and is less than or equal to 0.9,c is larger than or equal to 0.5 and is less than or equal to 0.94, x is larger than or equal to 50 and is less than or equal to 95, y is larger than or equal to 5 and is less than or equal to 35, z is larger than or equal to 0.5 and is less than or equal to 15, M is one of or more than one of B, Si, C and P, and R is one of or more than one of Nb, Cr, Mn, Ru, Mo, Zr, Cu, Y and La. The (FeaCobNic)xMyRz oxygen evolution catalytic material is prepared into strips by adopting electric arc melting and induction melting so as to obtain alloy strips of which the thickness is 0.05 to 500 mum.(FeaCobNic)xMyRz is directly used as a working electrode to be applied to electrolyzed water, and the overpotential is 220 mV to 360 mV in the condition that the current density is 10 mA cm<-2>.

Description

technical field [0001] The present invention relates to a kind of electrode catalytic material in electrolyzing water to produce hydrogen, more particularly, refers to a kind of (Fe a co b Ni c ) x m y R z It is a preparation method of an amorphous alloy or an amorphous and nanocrystalline composite material and applies it to an oxygen evolution catalytic electrode for electrolysis of water to obtain high catalytic activity. Background technique [0002] Hydrogen production by water electrolysis is a relatively convenient method for producing hydrogen. Direct current is passed through the electrolytic cell filled with electrolyte, and water molecules undergo electrochemical reactions on the electrodes, decomposing into hydrogen and oxygen. [0003] In today's energy-shortage society, hydrogen energy is recognized as a green energy with great potential and an ideal secondary energy that can solve resource shortage and environmental pollution. Today, hydrogen is produce...

Claims

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Application Information

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IPC IPC(8): C25B1/04C25B11/06C22C45/04C22C45/02C22C30/00C22C30/02C22C1/02
CPCC22C1/02C22C30/00C22C30/02C22C45/008C25B1/04C25B11/04C22C1/11Y02E60/36
Inventor 张涛贺盼
Owner 北京自然天空科技发展有限公司
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