Platinum and polyaniline composite nanofiber three-dimensional functional structure film and preparation method thereof

A technology of composite nanofibers and functional structures, applied in electrolytic coatings, coatings, etc., can solve the problems of long preparation time period, long preparation time, waste of precious metals, etc., and achieve stable physical and chemical properties, simple preparation method, and good catalytic properties. Effect

Inactive Publication Date: 2014-09-10
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are also some problems: (1) The production efficiency of platinum nanofibers prepared by the method of direct fiber loading of metal platinum fibers is low, which is easy to cause waste of precious metals and high cost
(2) The method of porous fiber adsorption metal platinum fiber requires a long period of preparation time and is limited to carbon fiber materials
(3) Electroless Platinum Platinum Modified Fibers The bonding strength of metal particles and organic fibers prepared by this method is limited, which cannot meet the needs of recycling
In order to overcome the disadvantages of poor bonding strength between conductive fibers and metals and long preparation time, it is very necessary to obtain a method for preparing platinum and polyaniline composite nanofibers.

Method used

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  • Platinum and polyaniline composite nanofiber three-dimensional functional structure film and preparation method thereof
  • Platinum and polyaniline composite nanofiber three-dimensional functional structure film and preparation method thereof
  • Platinum and polyaniline composite nanofiber three-dimensional functional structure film and preparation method thereof

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Effect test

Embodiment 1

[0024] Embodiment 1: a kind of platinum and polyaniline composite nanofiber three-dimensional functional structure film, it is characterized in that: this film is formed by layer-by-layer accumulation of platinum and polyaniline composite fiber, has hole structure.

[0025] The preparation process is as follows:

[0026] (1) Preparation of doped aniline monomer solution: take 5ml of aniline monomer solution, add 80ml of inorganic acid nitric acid as a hydrolysis catalyst, stir at low temperature for 20min until the solution is clarified again, and prepare doped aniline monomer solution;

[0027] (2) Electrochemical preparation of solidified polyaniline nanofibers in the intrinsic state: take 10 ml of the doped aniline monomer solution prepared in step (1) for electrochemical deposition, and use ordered nano-gold electrodes and platinum electrodes as positive and negative electrodes respectively , using the constant voltage method, adjusting the electrochemical voltage -1V, and...

Embodiment 2

[0030] Embodiment 2: The preparation process of the platinum and polyaniline composite nanofiber three-dimensional functional structure film according to the present invention is as follows:

[0031] (1) Preparation of doped aniline monomer solution: take 5ml of aniline monomer solution, add 80ml of inorganic acid nitric acid as a hydrolysis catalyst, stir at low temperature for 20min until the solution is clarified again, and prepare doped aniline monomer solution;

[0032] (2) Electrochemical preparation of solidified polyaniline nanofibers in the intrinsic state: take 10 ml of the doped aniline monomer solution prepared in step (1) for electrochemical deposition, and use ordered nano-gold electrodes and platinum electrodes as positive and negative electrodes respectively , using the constant voltage method, adjusting the electrochemical voltage -3V, and obtaining cured intrinsic state polyaniline at the positive electrode;

[0033] (3) Electrochemical doping to prepare cond...

Embodiment 3

[0035] Embodiment 3: The preparation process of the platinum and polyaniline composite nanofiber three-dimensional functional structure film according to the present invention is as follows:

[0036] (1) Preparation of doped aniline monomer solution: take 5ml of aniline monomer solution, add 80ml of inorganic acid nitric acid as a hydrolysis catalyst, stir at low temperature for 20min until the solution is clarified again, and prepare doped aniline monomer solution;

[0037] (2) Electrochemical preparation of solidified polyaniline nanofibers in the intrinsic state: take 10 ml of the doped aniline monomer solution prepared in step (1) for electrochemical deposition, and use ordered nano-gold electrodes and platinum electrodes as positive and negative electrodes respectively , using the constant voltage method, adjusting the electrochemical voltage -5V, and obtaining cured intrinsic state polyaniline at the positive electrode;

[0038] (3) Electrochemical doping to prepare cond...

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Abstract

The invention discloses a platinum and polyaniline composite nanofiber three-dimensional functional structure film and a preparation method thereof. The preparation method of the film comprises the following steps: (1) a curing eigenstate polyaniline nanofiber is electrochemically prepared; (2) a conductive polyaniline three-dimensional structure nanofiber structure is prepared through electrochemical doping; and (3) the platinum and polyaniline composite nanofiber three-dimensional functional structure film with wholly platinum-enveloped morphology is prepared through an electrochemical deposition method. The platinum and polyaniline composite nanofiber three-dimensional functional structure film has excellent physical-chemical stability and better catalysis capacity, and can be applied to such biosensors as glucose sensors and lactic acid sensors.

Description

technical field [0001] The invention relates to the field of polymer functional materials, in particular to a platinum and polyaniline composite nanofiber three-dimensional functional structure film and a preparation method thereof. Background technique [0002] In recent years, with the development of science and technology and society, biosensors have gradually come into people's sight, and conductive polymers are indispensable on them. From conductive polymers to conductive polyaniline to conductive polyaniline with surface catalyst modification as platinum metal. Platinum metal is widely used as an effective surface catalyst in the field of biosensors due to its good chemical stability and catalytic activity. The main application method of platinum metal in the field of sensors is to disperse nanometer two-dimensional and three-dimensional structures in the sensor, and obtain better biochemical catalytic ability with its larger specific surface area. At present, there ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D15/00C25D5/54
Inventor 陈裕泉王沧陈大竞陈玮潘敏管文军
Owner ZHEJIANG UNIV
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