Nickel/titanium/vanadium nanowire alloy hydrogen permeability membrane and preparing method and application

A nanowire and hydrogen permeable membrane technology, applied in semi-permeable membrane separation, chemical instruments and methods, membrane technology, etc. The effect of high hydrogen permeability

Inactive Publication Date: 2019-10-08
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the hydrogen permeability of the prepared nickel / titanium / vanadium alloy film is higher than that of the Pd / Ag alloy film, because the vanadium in the nickel / titanium / vanadium alloy film exists in the form of an ellipsoid, it cannot penetrate the alloy film, making the hydrogen permeability At the same time, due to the large size of vanadium grains, hydrides are easily formed in the nickel / titanium / vanadium alloy film, causing hydrogen embrittlement hazards

Method used

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  • Nickel/titanium/vanadium nanowire alloy hydrogen permeability membrane and preparing method and application
  • Nickel/titanium/vanadium nanowire alloy hydrogen permeability membrane and preparing method and application

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Experimental program
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Embodiment 1

[0030] This embodiment provides a method for preparing a nickel / titanium / vanadium nanowire alloy hydrogen permeable membrane, which includes the following steps:

[0031] (1) Preparation of mixed metal raw materials: take nickel, titanium, vanadium metal powders respectively according to the mass percentage of nickel, titanium, vanadium as 35%: 26%: 39%, and the particle diameters of nickel, titanium, vanadium metal powders are respectively 3mm , to obtain 0.5kg mixed metal powder after mixing evenly;

[0032] (2) Melting: put the mixed metal powder into an electric arc furnace, and melt it at 2000° C. for 5 minutes by induction melting method to obtain nickel / titanium / vanadium alloy ingot;

[0033] (3) Annealing: heat the nickel / titanium / vanadium alloy ingot at 900° C. for 30 minutes, then cool to room temperature with the furnace to complete the annealing;

[0034] (4) Forging: forging the annealed nickel / titanium / vanadium alloy ingot, the forging temperature is 750°C, and ...

Embodiment 2

[0043] This embodiment provides a method for preparing a nickel / titanium / vanadium nanowire alloy hydrogen permeable membrane, which includes the following steps:

[0044] (1) Preparation of mixed metal raw materials: get nickel, titanium, vanadium metal powders respectively according to the mass percentage of nickel, titanium, vanadium 34%: 25%: 38%, the particle diameters of nickel, titanium, vanadium metal powders are respectively 4mm, After mixing evenly, 1kg mixed metal powder is obtained;

[0045] (2) Melting: put the mixed metal powder into a plasma arc furnace, and melt it at 2000° C. for 5 minutes by induction melting method to obtain nickel / titanium / vanadium alloy ingot;

[0046] (3) Annealing: heat the nickel / titanium / vanadium alloy ingot at 900° C. for 30 minutes, then cool to room temperature with the furnace for annealing;

[0047] (4) Forging: forging the annealed nickel / titanium / vanadium alloy ingot, the forging temperature is 800°C, and the forging opening tempe...

Embodiment 3

[0050] This embodiment provides a method for preparing a nickel / titanium / vanadium nanowire alloy hydrogen permeable membrane, which includes the following steps:

[0051] (1) preparation of mixed metal raw materials: get nickel, titanium, vanadium metal powder respectively according to the mass percentage of nickel, titanium, vanadium 35%: 27%: 40%, the particle diameter of nickel, titanium, vanadium metal powder is respectively 5mm, After mixing evenly, 1.5kg mixed metal powder is obtained;

[0052] (2) Melting: put the mixed metal powder into a vacuum induction melting furnace, and melt it at 2000° C. for 5 minutes by induction melting method to obtain nickel / titanium / vanadium alloy ingot;

[0053] (3) Annealing: heat the nickel / titanium / vanadium alloy ingot at 900° C. for 30 minutes, then cool to room temperature with the furnace for annealing;

[0054] (4) Forging: Forging the annealed nickel / titanium / vanadium alloy ingot, the forging temperature is 850°C, and the forging...

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Abstract

The invention discloses a nickel/titanium/vanadium nanowire alloy hydrogen permeability membrane and a preparing method and application. The method comprises the following steps that nickel, titaniumand vanadium particles are taken and evenly mixed to obtain mixed metal powder; the mixed metal powder is put into a smelting device to be smelted, and a nickel/titanium/vanadium alloy ingot casting is obtained; the nickel/titanium/vanadium alloy ingot casting is subjected to heat preservation for 30 min at the temperature of 900 DEG C, furnace cooling to the room temperature is carried out, and annealing is finished; the annealed nickel/titanium/vanadium alloy ingot casting is forged, the forging temperature is 750 to 850 DEG C, forging starting temperature is 780 DEG C, and rod-like nickel/titanium/vanadium alloy is obtained; the nickel/titanium/vanadium alloy is subjected to drawing at the temperature of 450 to 550 DEG C, and the filamentous nickel/titanium/vanadium nanowire alloy hydrogen permeability membrane is obtained. The prepared nickel/titanium/vanadium nanowire alloy hydrogen permeability membrane has the higher hydrogen permeability rate, higher plasticity and toughness and lower hydrogen embrittlement susceptibility.

Description

technical field [0001] The invention belongs to the technical field of preparation of new metal materials, and in particular relates to a nickel / titanium / vanadium nanowire alloy hydrogen permeable membrane, a preparation method and an application. Background technique [0002] As the world's energy and environmental problems continue to worsen, the demand for hydrogen as a sustainable and clean energy is increasing day by day, which promotes the research on efficient and feasible hydrogen separation technology. At present, there are three kinds of hydrogen separation technologies, pressure swing adsorption separation, cryogenic separation and membrane separation. Compared with the other two separation technologies, membrane separation technology has many advantages such as simple operation, energy saving, and low cost. It is considered as the third-generation gas separation technology and has a good development prospect. [0003] At present, hydrogen separation membranes ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/00C22C1/02C22F1/00B01D67/00B01D71/02
CPCB01D67/0074B01D71/022C22C1/02C22C27/025C22C30/00C22F1/00
Inventor 史晓斌陈健武逸群李亚华李永涛
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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