Method for preparing zinc-tantalum alloy by solvating ionic liquid

An ionic liquid and solvation technology, applied in the field of metallurgy, can solve problems such as complex operation, difficulty in zinc-tantalum alloy, and narrow electrochemical window

Active Publication Date: 2020-10-27
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, deep eutectic solvents have fatal shortcomings of high viscosity, narrow electrochemical window, low current efficiency, and long deposition time.
Additives are usually used to improve the quality of cathode products. However, most of the additives are toxic and the effect is often uns

Method used

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  • Method for preparing zinc-tantalum alloy by solvating ionic liquid
  • Method for preparing zinc-tantalum alloy by solvating ionic liquid

Examples

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Embodiment 1

[0025] A 1,3-dimethyl-2-imidazolinone-ZnCl 2 -TaCl 5 A preparation method for preparing a zinc-tantalum alloy by solvating an ionic liquid, the specific operation comprising the following steps:

[0026] Step 1, at room temperature, under the atmospheric atmosphere, 2.933g of ZnCl 2 Slowly add to 10ml 1,3-dimethyl-2-imidazolidinone to dissolve, then slowly add 0.175g of TaCl 5 , forming 1,3-dimethyl-2-imidazolinone-ZnCl 2 -TaCl 5 Solvated ionic liquids;

[0027] Step 2. Stir and heat the intelligent digital display magnetic heating plate, control the temperature of the electrolytic cell to 40°C, and use the three-electrode system to conduct electrodeposition for 0.3h under the conditions of a constant potential of -0.4V (vs. Ag); the working electrode is the cathode Tungsten sheet (99.99%, area 1cm 2 ), the counter electrode is a platinum sheet (99.99%, with an area of ​​1cm 2 ), the reference electrode is a silver wire (99.99%, radius=1mm); before electrodeposition, th...

Embodiment 2

[0030] The operation steps of this example are the same as those of Example 1, except that in this example, the electrodeposition temperature is 60°C, the working electrode potential is -0.6V, and the reaction is carried out for 1 hour; a dense and uniform micro-nano zinc-tantalum alloy is obtained coating. It is detected by EDS, and it can be known that the weight percentages of zinc and tantalum are 59.12% and 3.09% respectively.

Embodiment 3

[0032]The operation steps of this example are the same as those of Example 1, the difference is that in this example, the electrodeposition temperature is 80°C, the working electrode potential is -1.2V, and the reaction is carried out for 2 hours; a dense and uniform micro-nano zinc-tantalum alloy is obtained coating. It is detected by EDS, and it can be seen that the weight percentages of zinc and tantalum are 31.66% and 31.37% respectively.

[0033] The scanning electron microscope picture of the zinc-tantalum alloy obtained in the present embodiment is as follows figure 1 As shown, the X-ray energy spectrum is shown as figure 2 shown. From figure 1 It can be seen that the obtained zinc-tantalum alloy has a dense and uniform microstructure, from figure 2 It can be seen that the obtained zinc-tantalum alloy has high content of zinc and tantalum, and only a small amount of other impurities.

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Abstract

The invention provides a method for preparing zinc-tantalum alloy by solvated ionic liquid, and belongs to the technical fields of metallurgy. The method for preparing zinc-tantalum alloy by the solvated ionic liquid specifically comprises the following steps that 1, ZnCl2 as a precursor is dissolved in 1,3-dimethyl-2-imidazolinone, and TaCl5 is continuously added in the mixture to form the solvated ionic liquid; 2, a beaker is used as an electrolytic cell, and the obtained solvated ionic liquid is used as an electrolyte to form an electrolytic cell system, and a three-electrode system is usedfor electrodeposition; and 3, after electrodeposition, a cathode is removed, the electrolyte adhering to the surface is cleaned, and the zinc-tantalum alloy is obtained on the surface after drying. The zinc-tantalum alloy prepared by the method has the characteristics of uniform particles, compact and smooth surface and excellent adhesion. The method can realize the rapid preparation of thick zinc-tantalum alloy coatings and has the advantages of simple equipment, low cost, safety and environmental protection and easy achieving, and the practicability is greatly improved.

Description

technical field [0001] The invention belongs to the field of metallurgy technology, in particular to a 1,3-dimethyl-2-imidazolidinone-ZnCl 2 -TaCl 5 A method for preparing a zinc-tantalum alloy by solvating an ionic liquid. Background technique [0002] Tantalum is a rare, hard, blue-gray, shiny transition metal with corrosion resistance. It is widely used in chemical industry because of its excellent properties such as high density, high melting point, high temperature strength, low plasticity, high ductility, and good processing. , cutting tools, aerospace, electronics and other fields. In addition, porous tantalum has attracted a lot of attention in the medical field in recent years due to its excellent mechanical strength and fatigue resistance, excellent corrosion resistance and excellent biocompatibility. [0003] Zinc is an inorganic antibacterial material with a suitable degradation rate and good antibacterial properties. The zinc-tantalum alloy is prepared by add...

Claims

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Application Information

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IPC IPC(8): C25D3/56C25D5/00
CPCC25D3/56C25D3/565C25D5/00
Inventor 刘爱民郭梦霞石忠宁刘风国陶文举杨酉坚王兆文胡宪伟
Owner NORTHEASTERN UNIV
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