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Preparation method of palladium nanometer wire ordered array material

An ordered array, palladium nanowire technology, applied in nanostructure manufacturing, nanotechnology, nanotechnology and other directions, to achieve the effect of simple method, orderly arrangement, and simplified process

Inactive Publication Date: 2009-12-02
DONGGUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method of a palladium nanowire array material to obtain a highly ordered palladium nanowire array material for the deficiencies in the existing palladium nanowire array material

Method used

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  • Preparation method of palladium nanometer wire ordered array material
  • Preparation method of palladium nanometer wire ordered array material
  • Preparation method of palladium nanometer wire ordered array material

Examples

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Embodiment 1

[0023] Example 1 Preparation of palladium nanowire ordered array material of the present invention

[0024] (1) Synthesis of nano-alumina template

[0025] a. The aluminum sheet (purity 99.999%) is first polished with a mixture of 70% perchloric acid and absolute ethanol at 2°C for 8 minutes, and the voltage is 20V; the volume ratio of 70% perchloric acid and absolute ethanol in the mixture 1:4.

[0026] b. After the aluminum sheet is cleaned with twice distilled water, it is first oxidized for 1.5 hours under 1mol / L sulfuric acid and a voltage of 20v, and a stainless steel plate is used as the counter electrode; then the aluminum is cleaned with a mixed washing solution of 6% phosphoric acid and 1.8% chromic acid at 60°C Remove the oxide film for half an hour; in the mixed washing solution, the volume ratio of 6% phosphoric acid and 1.8% chromic acid is 1:1.

[0027] c. After cleaning the aluminum sheet with double distilled water, anodize it for 6 hours with the same volta...

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Abstract

The invention relates to the field of palladium nanowires, and discloses a preparation method of a palladium nanowire ordered array material. In the invention, an inactive metal is used as a polymerization surface, and a nano-alumina template is firstly prepared by a secondary oxidation method, assembled on the surface of titanium metal, and then palladium nanowires are prepared by DC electrodeposition. The prepared palladium nanowires have a uniform diameter, are arranged in an orderly manner, and the length can be controlled by the number of cycles, which can easily meet the production requirements. The preparation method of the present invention is simple, no sputtering process is required, the whole flow time is short, and the synthesis conditions can be carried out under normal conditions, so the cost is low.

Description

technical field [0001] The invention relates to the field of palladium nanowires, in particular to a method for preparing a palladium nanowire ordered array material. Background technique [0002] Metal nanowire arrays have extremely important applications in electronic and optoelectronic devices, high-density magnetic storage, etc. because of their nonlinear optical properties, anisotropic conductivity, spectral properties, and unique magnetic properties. Palladium nanowires and their arrays have excellent physical and chemical properties, and can be used as the constituent units of quantum structure devices. Due to their excellent ability to store hydrogen and good catalytic activity, they have good applications in sensors, fuel cells and catalysis. Application prospects. Hydrogen atoms are adsorbed on the surface of palladium and then moved into the shallow surface of the metal. Since hydrogen gas can only enter the shallow surface of palladium metal, when palladium is i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B82B3/00C30B29/62
Inventor 程发良汪洪张敏
Owner DONGGUAN UNIV OF TECH