Silver nanowire array electrode and its preparation method and application

A technology of silver nanowires and array electrodes, applied in the fields of nanostructure manufacturing, nanotechnology, nanotechnology, etc., can solve the problems of low specific surface area, low adsorption and catalysis efficiency, restricting sensitivity and accuracy, etc., and achieves scientific preparation method. , Not easy to break, good array effect
CN102267682AInactive Publication Date: 2011-12-07HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
Publication Date
2011-12-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a silver nanowire array electrode, a preparation method and application thereof. The electrodes are silver nanowires forming an array with a diameter of 50-70nm and a wire length of 250-350nm. The bottom of the array is a silver film of 130-170nm and a copper film of 0.5-1mm; the method is to use a secondary anode on the aluminum sheet first Oxidation method to obtain a through-hole alumina template with a pore diameter of 50-70nm, and then use the ion sputtering method to vapor-deposit a silver film on one side of the alumina template, and then place the alumina template with a silver film on one side in a silver electrolysis solution, use the electrodeposition method to electrodeposit at a constant voltage of 0.08 to 0.12V for 1 to 5 minutes, then place it in the copper electrolyte, use the electrodeposition method to electrodeposit 2.5 to 3.5 at a current of 8 to 12mA / cm2 h, after that, put the aluminum oxide template with silver nanowires in the hole, one side covered with silver film and copper film in sequence, in acid solution or strong alkali solution to corrode the aluminum oxide template, and make silver nanowire array electrode. Array electrodes can be used as sensitive elements for trace detection or reduction of halogenated organic compounds.
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Description

technical field

[0001] The invention relates to an array electrode and its preparation method and application, in particular to a silver nanowire array electrode and its preparation method and application. Background technique

[0002] The nanostructure based on noble metal silver has a good adsorption and catalytic effect on halogen-containing organic compounds, such as chloropropanol, chlorobenzene, chlorophenol, etc. People often use it as a sensitive element-electrode to detect and reduce halogen-containing organic compounds, such as In 2006, pages 4956-4964 of the 51st volume of the British Electrochemical Society reported that AbdirisakA.Isse et al. published an article titled "The Electrochemical Reduction of Halogenated Toluene on a Silver Electrode" (Abdirisak A.Isse, et al, Electrochemical reduction of benzyl Halides at a silver electrode, Electrochimica Acta 51 (2006) 4956-4964) article, which discloses a method of depositing silver particles on a glassy carbon el...

Claims

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