Method for preparing nickel and nickel alloy one-dimensional superstructure nanometer functional materials by adopting hydrogen separation template method

A nickel-based alloy and nano-functional technology, which is applied in the field of nickel and nickel-based alloy one-dimensional superstructure nano-functional materials prepared by hydrogen evolution template method, achieves the effect of simple and convenient operation, high efficiency and wide application

Inactive Publication Date: 2011-07-27
BEIJING UNIV OF CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a method for preparing nickel and nickel-based alloy one-dimensional superstructure nano-functional materials by using the hydrogen evolution template method, which solves many problems caused by physical templates. It does not use traditional physical templates but rationally uses hydrogen generated in the electrodeposition process as a template, realizing the traditional preparation of templates, combined with electrodeposition to prepare nanowires and template removal. The three steps are combined into one step, and the operation is simple, convenient, fast, and efficient. efficient

Method used

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  • Method for preparing nickel and nickel alloy one-dimensional superstructure nanometer functional materials by adopting hydrogen separation template method
  • Method for preparing nickel and nickel alloy one-dimensional superstructure nanometer functional materials by adopting hydrogen separation template method
  • Method for preparing nickel and nickel alloy one-dimensional superstructure nanometer functional materials by adopting hydrogen separation template method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The metal salt used in this example is: nickel chloride; the co-precipitated binary group is: stannous chloride; the additive is: potassium pyrophosphate; the pH value buffering agent is: glycine.

[0034] Step 1: Adhere 2×2cm copper foil on the copper plate, and perform pretreatment as the cathode of the electroplating process; that is, perform electropolishing treatment. The electropolishing solution is composed of concentrated phosphoric acid (98%) and deionized water, and the volume ratio of concentrated phosphoric acid: deionized water is 2:1. The copper plate is used as the cathode, and the copper foil to be treated is used as the anode for electropolishing, and the polishing potential is 2.5V. Take it out when the surface of the copper foil becomes mirror-like, rinse with deionized water and blow dry with nitrogen.

[0035] Step 2: NiCl 2 2H 2 O, SnCl 2 2H 2 O, K 4 P 2 o 7 , Glycine compound dissolved in deionized water, configured to contain 0.12mol / L Ni...

Embodiment 2

[0038] The main salt used in this example is: nickel chloride, nickel sulfate; the co-precipitated binary group is: phosphoric acid; the pH value buffer is: boric acid; the additive is: ammonia water.

[0039]Step 1: pre-treat the commercial AAO template, that is, ultrasonically clean the AAO template in a mixed solution of deionized water, ethanol, and acetone for 15 minutes.

[0040] Step 2: NiSO 4 ·6H 2 O, NiCl 2 ·6H 2 O, H 3 BO 3 、H 3 PO 4 , NH 3 ·H 2 The O compound is dissolved in deionized water and configured to contain 0.95mol / L NiSO 4 ·6H 2 O, 0.17mol / L NiCl 2 ·6H 2 O, 0.32mol / L H 3 BO 3 , 0.2-0.4mol / L H 3 PO 4 , NH 3 h 2 O electrolyte, adjust the pH value to 4.0, and keep the temperature at 30 degrees Celsius; use the cleaned AAO as the cathode, and the Pt sheet as the anode; at a constant current density of 1mA / cm 2 Under electroplating. The electroplating time is 120min.

[0041] Step 3: Put the product obtained in Step 2 in 3mol / L NaOH, etch f...

Embodiment 3

[0044] The main salt used in this example is: nickel chloride, nickel sulfate; the co-precipitation binary group is: sodium thiosulfate; the additive is: sulfosalicylic acid; the pH value buffer agent is: boric acid.

[0045] Step 1: Adhere 2×2cm copper foil on the copper plate, and perform pretreatment as the cathode of the electroplating process; that is, perform electropolishing treatment. The electropolishing solution is composed of concentrated phosphoric acid (98%) and deionized water, and the volume ratio of concentrated phosphoric acid: deionized water is 2:1. The copper plate is used as the cathode, and the copper foil to be treated is used as the anode for electropolishing, and the polishing potential is 2.5V. Take it out when the surface of the copper foil becomes mirror-like, rinse with deionized water and blow dry with nitrogen.

[0046] Step 2: NiSO 4 ·6H 2 O, NiCl 2 ·6H 2 O, H 3 BO 3 、Na 2 S 2 o 3 、C 7 h 6 o 6 The S compound is dissolved in deionize...

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Abstract

The invention relates to a method for preparing nickel and nickel alloy one-dimensional superstructure nanometer functional materials by adopting a hydrogen separation template method, which mainly comprises the following steps of adding an additive, metal salt of a first constituent element and a complexing agent in an aqueous solution containing a buffering agent with specific pH in sequence toform a solution, mixing the solution uniformly, and then adding one of a sulfur source, a phosphor source and a tin source commonly deposited in a second constitute element in the solution. The obtained mixture is uniformly mixed at certain temperature; a pH value is adjusted to stabilize an electrolyte; hydrogen is separated out on the surface of a nickel matrix quantitatively, directionally anduniformly through controlling current density by adopting a direct current or pulse electrolytic deposition method; and finally, lots of fine, dense and continuous air bubbles are formed in the mixedsolution. By adopting the method, as an actual template does not need to be used when an alloy nanometer wire is prepared, the problem of removing the template is not involved. By using the method, the preparation reaction period is short, the operation is simple and convenient, the conditions are easy to control, and the production efficiency is high. Simultaneously, the method further has the advantages that the cost is low, the maneuverability is strong, the yield is high, the mass production can be realized and the like, and has obvious practical value.

Description

technical field [0001] The invention relates to a method for preparing single-metal and multi-metal alloy one-dimensional nanometer materials by a template method, in particular to a method for preparing nickel and nickel-based alloy one-dimensional superstructure nanometer functional materials by a hydrogen evolution template method. Background technique [0002] Nanomaterials have unique magnetic, optical, photoelectric, and catalytic properties, and have broad application prospects in high-density magnetic recording, magnetic sensors, photocatalysts, low-temperature superplasticity, and hydrogen storage materials. The grain size and morphology, nickel surface state and microstructure of nano-metal materials directly affect the properties and uses of nickel nano-metals. [0003] In recent years, it has been found that the regularization of nano-nickel morphology has a great influence on its characteristic parameters, especially the successful preparation of one-dimensional...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D5/02C25D3/56C30B29/52C30B29/62C30B30/02
Inventor 刘景军王峰侯连利王建军张良虎覃事永张玉仙
Owner BEIJING UNIV OF CHEM TECH
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