The preparation method of Ni-Au alloy nanotubes
Technical field
The present invention relates to field of metal alloy technology, specifically a kind of preparation method of Ni-Au alloy nanotubes.
Background technology
Metal alloy nano material has certain perspective and wide application prospect.Its show obvious surface with
Interfacial effect, small-size effect, quantum size effect, macro quanta tunnel effect, have application valency very high in terms of catalysis
Value.Alloy nano-material is typically fine particle and forms presence, because with surface area higher, free energy is larger, is using
During be easy to reunite, cause catalyst to inactivate.Therefore researcher is being devoted to the research of metal nano-tube always, leads to
Cross different methods and be successfully prepared different single metal nano-tubes.Preferable two or more alloy is depended on
This several metallic surface directionality, and plane of crystal unicity etc..Meanwhile, it is different during metal material is prepared
The rate of reduction of reducing agent, reaction temperature and different metal required for metal material in reduction process is also different,
Therefore, it is challenging research topic always that should simultaneously form two kinds of metals and keep the pattern of nanotube again.
It is main with AAO as template that alloy nanotube is prepared at present, and the preparation process of AAO compares power consumption, and removal mould
The pollutants such as many soda acids can be produced during plate, is unfavorable for actual application.
United States Patent (USP)(US2016276280A1)Describe it is a kind of with copper be the ultra-thin multiple layer metal Nanoalloy material of substrate.
Copper alloy provides stress migration resistance and dielectric layer power prepares tungsten/copper alloy and/copper alloy for its alloy material.The method requirement
Preparation condition it is relatively complicated, with certain application limitation.
Japan Patent(JP2016070885A)Describe a kind of charcoal of alloy nanoparticle and extremely improve its electrode performance.
Electric conductivity is improved by preparing metal alloy nano material, for charcoal provides feasibility as good electrode.Illustrate gold
Category alloy material has certain application prospect and practical significance.
Russ P(RU2015110737A)Describe one kind be attached on Ti-Al alloy formed crystalline nanometric it is porous
The method of oxide.The method is designed into electroplating technology, by preparing Ti-Al alloy powder, and cleans, and dries, at anode
Reason forms nano-porous surface oxide.Electroplating effect is good, but consumed cost is higher, and electroplates uneven, need to develop it is a kind of into
This is low, and plating method is uniform and efficient method.
The Introduction To Cn Patent of Publication No. CN102400014A a kind of Co-Ni based alloys, the crystallization of Co-Ni based alloys
Control method, the manufacture method of Co-Ni based alloys and cerium sulphate crystal Co-Ni based alloys.The method is characterised by that it contains
Co, Ni, Cr and Mo, structure are orientated based on Gauss orientation.The method hole system difference crystalline texture, prepares various Ni based alloys materials
Material.The method complex operation, high cost not environmentally, awaits developing polymer raw material.
The preparation method and Fe of a kind of Fe Based Nanocrystalline Alloys of the Introduction To Cn Patent of Publication No. CN105593382A
The preparation method of Based Nanocrystalline Alloys magnetic core.By can the Fe base amorphous alloy bands of nano-crystallization be heated to crystallization temperature region simultaneously
The heat treatment step for being cooled down, and in the width applying magnetic field of alloy strip.The method is simply efficient, reproducible, can
Prepared for most metals alloy material.The method has certain limitation, awaits developing a kind of polymer as original
Material.
A kind of magnetic Nano with electro-oxidizing-catalyzing performance of the Introduction To Cn Patent of Publication No. CN105648478A
The preparation method of porous Fe-Pt alloys, belongs to new material technology field.Fe-Pt- is prepared using electric arc furnaces or induction melting furnace
(B, Si)It is that alloy master alloy ingot prepares the presoma alloy strip with amorphous or amorphous nano crystal structure.The method technique
Simply, flow is short, energy-efficient, but higher to the selectivity ratios of metal, there is limitation, needs to be improved preparation technology.
The Introduction To Cn Patent of the publication number CN1804118A method of chemical plating nickel-boron alloy on magnesium alloy surface.The method
Design a kind of AZ91D chemical plating nickel-boron alloy on magnesium alloy surface technique.Magnesium alloy is put into by sodium carbonate, sodium phosphate and poly- second two
Washed after being processed in the solution of alcohol octyl phenyl ether composition, obtain magnesium alloy, the magnesium alloy after treatment is put into by glacial acetic acid and
Sodium nitrate composition solution in process after wash, chemical plating, will be put into through the magnesium alloy after alkali cleaning and pickling processes by nickel acetate,
Washed after chemical plating in the chemical plating solution of sodium borohydride, ethylenediamine, NaOH and compound additive composition and obtain Ni-B conjunctions
Gold plate.It is low there is provided a kind of process costs, it is simple to operate, it is environmentally friendly, performance can be obtained in AZ91D Mg alloy surfaces excellent
The process of different Electroless Deposited Ni-B Alloy coating.But preparing has the alloy material of certain pattern more meaningful and valency
Value.
The Chinese patent of Publication No. CN102366839A also describes a kind of preparing rod-like ferrocobalt alloy powder without adopting template
Method.The oxide for preparing iron using coprecipitation is distributed in divalent cobalt ion solution, to being restored in mixture, then
By mixed powder, centrifugation out, is washed alcohol and is washed from solution, is vacuum dried, at dry powder under nitrogen protection heat
Reason obtains ferrocobalt granular powder.This inventive method process is simple, easy to operate, low cost, gained alloying pellet are by uniform
Club shaped structure is constituted, a diameter of 50-100 nm of rod, with good electro-magnetic wave absorption performance.However, by simple preparation side
Method develops a kind of reproducibility and differs that larger two kinds of metal alloy compositions are more meaningful and application prospect.
In sum, received significant attention for raw material prepares metal nano alloy from common biomass film, while
Preparation process is simple, efficiently time-saving energy-saving, easily industrialization also receive much concern.The present invention is from a kind of common polymer to benzene two
The ester film of formic acid second two is raw material, and pore structure is etched through sensitization plays activation method, then through different chemical plating fluids, and identical
Metallic reducing agent, simply, efficiently prepares the nano metal Ni-Au alloy materials with abundant tubular morphology.
The content of the invention
Technical assignment of the invention is to solve the deficiencies in the prior art, there is provided a kind of preparation side of Ni-Au alloy nanotubes
Method.
The technical scheme is that realize in the following manner, the preparation method of the Ni-Au alloy nanotubes is:
With PETP polymer as raw material, hole is etched through sodium hydroxide solution, in SnCl2Sensitized solution condition
Lower absorption Sn2+Ion, by adding PdCl2Pd metals are displaced there is ionic reaction as nuclearing centre, additionization in activating solution
Ni plating solutions and reducing solution are learned, a small amount of chemistry Au plating solutions are then progressively added dropwise, 1 h is reacted at 50~90 DEG C, remove polymer in-mold
After plate, Ni-Au alloy nano tube materials are obtained.
The method is specifically:
From PETP polymer as template, 1~4M mol sodiums at 40~70 DEG C
Its tow sides is then carried out uviol lamp and radiates 0.5~3 h by 5~30 min of lower etching respectively, then in dimethylformamide
5~20 min are impregnated in DMF solvent;
Via SnCl2The trifluoroacetic acid 10 of ethanol 1~10 mL, titer 1.0mol/L of 50~200 mg, 90%-98wt%
~100 uL, the sensitized solution that the mL of deionized water 1~20 is mixed impregnates 1~20 min;In SnCl2Sensitized solution condition
Lower absorption Sn2+Ion;
Again via PdCl2The activated solution that 20~100mg of 100~300mg, deionized water 5~20 mL, NaCl is mixed
1~20 min of dipping;Generation ionic reaction displaces Pd metals as nuclearing centre;
Repeat sensitization, activation step 1~5 time;
By the mg of nickel sulfate 50~100;The mg of iminodiacetic acid 50~200;The μ L of NaOH solution 100~300 of 32wt%;Go from
Sub- 1~20mL of water mixes Ni plating solutions;
Reducing solution is mixed by the μ L of hydrazine hydrate 255 and the mL of deionized water 1~20 of 40%-80wt%;
By the HAuCl of titer 1.0mol/L4The μ L of solution 200~600;The mg of DMAP 10~100;Deionized water
0.2~5 mL mixes Au plating solutions;
Film after treatment is put at 50~90 DEG C in the mixture of Ni plating solutions and reducing solution, and is dripped with 200 μ L/30s speed
Plus Au plating solutions, and 0.5~3 h is reacted, after removal polymer template, obtain Ni-Au alloy nano tube materials.
Sensitized solution is by SnCl290 mg, the mL of ethanol 3.3, the uL of trifluoroacetic acid 46, the mL of deionized water 6.7 mix and
Into.
Activated solution is by PdCl2218 mg, deionized water 10 mL, NaCl 47 mg are mixed.
Ni plating solutions are by the mg of nickel sulfate 79;The mg of iminodiacetic acid 93;The μ L of NaOH solution 197;The mL of deionized water 3 mixes
Form.
Au plating solutions are by HAuCl4The μ L of solution 368;The mg of DMAP 34;The mL of deionized water 1 is mixed.
Reducing solution is by the μ L of the hydrazine hydrate 255 and mL of deionized water 3.
The produced compared with prior art beneficial effect of the present invention is:
The preparation method of the Ni-Au alloy nanotubes is raw material, abundant raw material, yield from PETP polymer
Sufficient secure, cost of material is low, energy-saving.Therefore thin polymer film is developed for template prepares metal nano-tube with very high
Researching value.The crystallization degree of polymer is key issue, and crystallinity polymer high can be such that metal is preferably attached to
Polymer surfaces, form the alloy material of stabilization.Polyethylene terephthalate (PET), is a kind of crystal type saturated polyester,
Crystallinity is very high, is creamy white or light yellow.The polymer has creep resistance good, and fatigue durability is strong, rub resistance it is good and
The advantages of dimensionally stable, its internal ester bond can decompose under strong acid, highly basic and water vapor acting, therefore select it as mould
Plate, efficiently preparing metal nano alloy material using simple method has important realistic meaning and application value.
The method changes traditional production technology, uses simple sensitization, activation, chemical plating method, so that it may form steady
Fixed Ni-Au alloy nanotubes.
The method makes restoring for stabilized metal according to the reducing property of different metal from identical reducing agent, behaviour
Make efficient, controllability is strong.
The method solution usage is few, and the reaction time is short, takes less, consumes energy low, efficiently prepares Ni-Au alloy nanotubes, shape
Into the Ni-Au alloy nano tube materials of stabilization, the application field of metal material is widened.
The preparation method of the Ni-Au alloy nanotubes is reasonable in design, safe and reliable, easy to operate, be easy to control, with very
Good popularizing value.
Brief description of the drawings
Accompanying drawing 1 is the SEM SEM figures of Ni-Au alloy nanotubes obtained by the present invention.
Specific embodiment
The preparation method to Ni-Au alloy nanotubes of the invention is described in detail below below in conjunction with the accompanying drawings.
The preparation method of Ni-Au alloy nanotubes of the invention is:
With PETP polymer as raw material, hole is etched through sodium hydroxide solution, in SnCl2Sensitized solution condition
Lower absorption Sn2+Ion, by adding PdCl2Pd metals are displaced there is ionic reaction as nuclearing centre, additionization in activating solution
Ni plating solutions and reducing solution are learned, a small amount of chemistry Au plating solutions are then progressively added dropwise, 1 h is reacted at 50~90 DEG C, remove polymer in-mold
After plate, Ni-Au alloy nano tube materials are obtained.
The method is specifically:
From PETP polymer as template, 1~4M mol sodiums at 40~70 DEG C
Its tow sides is then carried out uviol lamp and radiates 0.5~3 h by 5~30 min of lower etching respectively, then in dimethylformamide
5~20 min are impregnated in DMF solvent;
Via SnCl2The trifluoroacetic acid 10 of ethanol 1~10 mL, titer 1.0mol/L of 50~200 mg, 90%-98wt%
~100 uL, the sensitized solution that the mL of deionized water 1~20 is mixed impregnates 1~20 min;In SnCl2Sensitized solution condition
Lower absorption Sn2+Ion;
Again via PdCl2The activated solution that 20~100mg of 100~300mg, deionized water 5~20 mL, NaCl is mixed
1~20 min of dipping;Generation ionic reaction displaces Pd metals as nuclearing centre;
Repeat sensitization, activation step 1~5 time;
By the mg of nickel sulfate 50~100;The mg of iminodiacetic acid 50~200;The μ L of NaOH solution 100~300 of 32wt%;Go from
Sub- 1~20mL of water mixes Ni plating solutions;
Reducing solution is mixed by the μ L of hydrazine hydrate 255 and the mL of deionized water 1~20 of 40%-80wt%;
By the HAuCl of titer 1.0mol/L4The μ L of solution 200~600;The mg of DMAP 10~100;Deionized water
0.2~5 mL mixes Au plating solutions;
Film after treatment is put at 50~90 DEG C in the mixture of Ni plating solutions and reducing solution, and is dripped with 200 μ L/30s speed
Plus Au plating solutions, and 0.5~3 h is reacted, after removal polymer template, obtain Ni-Au alloy nano tube materials.
Embodiment 1:
From PETP as template, 5 min are etched under 1 M sodium hydroxide solutions at 50 DEG C, then divided
The other uviol lamp that carried out to its tow sides radiates 30 min, then 5 min are impregnated in DMF solvent.Through sensitized solution(SnCl2 90
The uL of trifluoroacetic acid 46 of ethanol 3.3 mL, titer 1.0mol/L of mg, 90wt%, the mL of deionized water 6.7 are mixed)Leaching
The min of stain 1, then activated solution(PdCl2218 mg, deionized water 10 mL, NaCl 47 mg)1 min is impregnated, is repeated quick
Change activation step 5 times.Ni plating solutions at film after treatment is put into 50 DEG C(The mg of nickel sulfate 79;The mg of iminodiacetic acid 93;
The μ L of NaOH solution 197 of 32wt%;The mL of deionized water 3 mixes)And reducing solution(The μ L of hydrazine hydrate 255 and deionized water of 40wt%
3 mL)Mixture in, with 200 μ L/30s speed be added dropwise Au plating solutions(The HAuCl of titer 1.0mol/L4The μ L of solution 368;4-
The mg of dimethylamino naphthyridine 34;The mL of deionized water 1), and react 1 h.
Embodiment 2:
From PETP as template, 15 min are etched under 2 M sodium hydroxide solutions at 60 DEG C, then divided
The other uviol lamp that carried out to its tow sides radiates 1 h, then 10 min are impregnated in DMF solvent.Through sensitized solution(SnCl2 90
The uL of trifluoroacetic acid 46 of ethanol 3.3 mL, titer 1.0mol/L of mg, 95wt%, the mL of deionized water 6.7 are mixed)Leaching
The min of stain 7, then activated solution(PdCl2218 mg, deionized water 10 mL, NaCl 47 mg)7 min are impregnated, is repeated quick
Change activation step 4 times.Ni plating solutions at film after treatment is put into 60 DEG C(The mg of nickel sulfate 79;The mg of iminodiacetic acid 93;
The μ L of NaOH solution 197 of 32wt%;The mL of deionized water 3 mixes)And reducing solution(The μ L of 60wt% hydrazine hydrates 255 and deionized water 3
mL)Mixture in, with 200 μ L/30s speed be added dropwise Au plating solutions(HAuCl4The μ L of solution 368;The mg of DMAP 34;
The mL of deionized water 1), and react 2 h.
Embodiment 3:
From PETP as template, 20 min are etched under 3 M sodium hydroxide solutions at 40 DEG C, then divided
The other uviol lamp that carried out to its tow sides radiates 2 h, then 20 min are impregnated in DMF solvent.Through sensitized solution(SnCl2 90
The uL of trifluoroacetic acid 46 of ethanol 3.3 mL, titer 1.0mol/L of mg, 98wt%, the mL of deionized water 6.7 are mixed)Leaching
The min of stain 12, then activated solution(PdCl2218 mg, deionized water 10 mL, NaCl 47 mg)12 min are impregnated, is repeated
Sensitization activation step 3 times.Ni plating solutions at film after treatment is put into 70 DEG C(The mg of nickel sulfate 79;Iminodiacetic acid 93
mg;The μ L of NaOH solution 197 of 32wt%;The mL of deionized water 3 mixes)And reducing solution(The μ L of hydrazine hydrate 255 of 80wt% and go from
The mL of sub- water 3)Mixture in, with 200 μ L/30s speed be added dropwise Au plating solutions(The HAuCl of titer 1.0mol/L4The μ of solution 368
L;The mg of DMAP 34;The mL of deionized water 1), and react 0.5 h.
Embodiment 4:
From PETP as template, 30 min are etched under 4 M sodium hydroxide solutions at 70 DEG C, then divided
The other uviol lamp that carried out to its tow sides radiates 2.5 h, then 15 min are impregnated in DMF solvent.Through sensitized solution(SnCl2 90
The uL of trifluoroacetic acid 46 of ethanol 3.3 mL, titer 1.0mol/L of mg, 90wt%, the mL of deionized water 6.7 are mixed)Leaching
The min of stain 18, then activated solution(PdCl2218 mg, deionized water 10 mL, NaCl 47 mg)18 min are impregnated, is repeated
Sensitization activation step 2 times.Ni plating solutions at film after treatment is put into 80 DEG C(The mg of nickel sulfate 79;Iminodiacetic acid 93
mg;The μ L of NaOH solution 197 of 32wt%;The mL of deionized water 3 mixes)And reducing solution(The μ L of hydrazine hydrate 255 of 80wt% and go from
The mL of sub- water 3)Mixture in, with 200 μ L/30s speed be added dropwise Au plating solutions(The HAuCl of titer 1.0mol/L4HAuCl4Solution
368 μL;The mg of DMAP 34;The mL of deionized water 1), and react 2.5 h.
Embodiment 5:
From PETP as template, 25 min are etched under 2 M sodium hydroxide solutions at 40 DEG C, then divided
The other uviol lamp that carried out to its tow sides radiates 3 h, then 15 min are impregnated in DMF solvent.Through sensitized solution(SnCl2 90
The uL of trifluoroacetic acid 46 of ethanol 3.3 mL, titer 1.0mol/L of mg, 98wt%, the mL of deionized water 6.7 are mixed)Leaching
The min of stain 20, then activated solution(PdCl2218 mg, deionized water 10 mL, NaCl 47 mg)20 min are impregnated, is repeated
Sensitization activation step 1 time.Ni plating solutions at film after treatment is put into 90 DEG C(The mg of nickel sulfate 79;Iminodiacetic acid 93
mg;The μ L of NaOH solution 197 of 32wt%;The mL of deionized water 3 mixes)And reducing solution(The μ L of 80wt% hydrazine hydrates 255 and deionization
The mL of water 3)Mixture in, with 200 μ L/min speed be added dropwise Au plating solutions(The HAuCl of titer 1.0mol/L4The μ L of solution 368;
The mg of DMAP 34;The mL of deionized water 1), and react 3 h.See accompanying drawing 1.