Gold nanoparticle array on nickel substrate and preparation method thereof

A gold nanoparticle, gold particle technology, applied in nanotechnology, metal material coating process, superimposed layer plating and other directions, can solve the problem of high cost of large-area highly ordered gold nanoparticle array, and achieve easy industrialization, Mild conditions, large area effect

Inactive Publication Date: 2018-10-23
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The second purpose of the present invention is to overcome the disadvantages of high cost of preparing large-area and highly ordered gold nanoparticle arrays by existing methods (such as photolithography), and to provide a new method for preparing gold nanoparticle arrays

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  • Gold nanoparticle array on nickel substrate and preparation method thereof
  • Gold nanoparticle array on nickel substrate and preparation method thereof
  • Gold nanoparticle array on nickel substrate and preparation method thereof

Examples

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Embodiment 1

[0031] Embodiment 1: In this embodiment, a brand-new gold nanoparticle array on nickel base is prepared by combining an anodized aluminum oxide template and an electrochemical deposition method, wherein the gold nanoparticles are discontinuous. The specific preparation flow chart is as follows figure 1 shown.

[0032] a. Preparation of anodized aluminum oxide template (AAO)

[0033] Pretreatment of a1 aluminum sheet: ultrasonic cleaning in acetone, deionized water, and ethanol in sequence for 15 minutes, CVD high-temperature annealing, 450~550°C under nitrogen protection, 1.2mA in a mixture of ethanol and perchloric acid at a temperature of 0°C Electrochemical polishing was performed under constant current conditions.

[0034] a2 Anodic oxidation: AAO templates were prepared by a two-step method at a constant voltage of 40-55V using a self-made anodic oxidation device with 0.3M oxalic acid solution as the electrolyte. First anodize the aluminum sheet for the first time, and...

Embodiment 2

[0040] Embodiment 2: In this embodiment, a brand-new gold nanoparticle array on nickel base is prepared by combining an anodized aluminum oxide template and an electrochemical deposition method, wherein the gold nanoparticles are continuous. The specific preparation flow chart is as follows figure 2 shown.

[0041] a. Preparation of anodized aluminum oxide template (AAO)

[0042] Pretreatment of a1 aluminum sheet: ultrasonic cleaning in acetone, deionized water, and ethanol in sequence for 15 minutes, CVD high-temperature annealing, 450~550°C under nitrogen protection, 1.2mA in a mixture of ethanol and perchloric acid at a temperature of 0°C Electrochemical polishing was performed under constant current conditions.

[0043] a2 Anodic oxidation: AAO templates were prepared by a two-step method at a constant voltage of 40-55V using a self-made anodic oxidation device with 0.3M oxalic acid solution as the electrolyte. First anodize the aluminum sheet for the first time, and t...

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Abstract

The invention discloses a gold nanoparticle array on a nickel base and a preparation method of the gold nanoparticle array. The array is the gold nanoparticle array arrayed on a nickel base material; the gold nanoparticle array is discontinuous, the particles sizes of gold nanoparticles in the discontinuous gold nanoparticle array are 30 to 72nm, and the center distance between the particles is 98 to 102nm; or the gold nanoparticle array is continuous, the particles sizes of the gold nanoparticles in the continuous gold nanoparticle array are 30 to 100nm, and the center distance between the particles is 98 to 102nm. The method provided by the invention is relatively flexible; and the gold nanoparticles in the prepared gold nanoparticle array on the nickel base can be discontinuous or continuous; and in addition, a used AAO template can be repeatedly used. Meanwhile, the gold nanoparticle array and the preparation method thereof disclosed by the invention have the advantages of simple operation, low cost and capability of obtaining a large-area and highly-ordered gold nanoparticle array, and is expected to be applied to solar batteries, photoelectrocatalysis, sensors, information storage and the like.

Description

technical field [0001] The invention relates to a novel gold nanoparticle array on a nickel base and a preparation method thereof, in particular to the preparation of a gold nanoparticle array on a nickel base by combining an anodized aluminum oxide (AAO) template and an electrochemical deposition method. The gold in the array is Nanoparticles can be either discontinuous or continuous. Background technique [0002] Gold nanoparticle arrays have shape-dependent optical properties and collective properties brought about by plasmon resonance coupling between them. Their highly ordered arrays have a wide range of applications in high-sensitivity sensors, solar cells, information storage, optoelectronic devices and other fields. [0003] In the prior art, the preparation of gold nanoparticle arrays mainly adopts technologies such as electron beam, ion beam exposure and etching, scanning probe assistance, and microcontact printing. Processing equipment; the cost is high, it is di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D11/12C25D11/16C25D11/24C23C14/18C23C14/24C25D3/46C25D3/12C25D5/12C25D5/18C23C28/00B82Y40/00
CPCB82Y40/00C23C14/18C23C14/24C23C28/322C23C28/345C25D3/12C25D3/46C25D5/12C25D5/18C25D11/045C25D11/12C25D11/16C25D11/24
Inventor 吴明红付群明杰王聿曦周敏雷勇
Owner SHANGHAI UNIV
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