Carbon nanotube/phthalocyanine/polyaniline three-element composite material, and preparation method and application thereof

A technology of carbon nanotubes and composite materials, which is applied in the analysis of materials, material analysis by electromagnetic means, instruments, etc., can solve the problem of uniform distribution of difficult polyaniline, achieve high specific surface area, improve gas sensing performance, and high conductivity rate effect

Active Publication Date: 2017-06-13
青岛碳希新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the technical problem that it is relatively difficult to uniformly distribute polyaniline on the surface of carbon nanotubes in existing methods, and provides a carbon nanotube / phthalocyanine / polyaniline ternary composite material and its preparation method and application. The introduction of cyanine into the middle acts as a template and dopant, which is beneficial to control the uniform polymerization of aniline monomers on the surface of carbon nanotubes, and realize the efficient combination of polyaniline and carbon nanotubes

Method used

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  • Carbon nanotube/phthalocyanine/polyaniline three-element composite material, and preparation method and application thereof
  • Carbon nanotube/phthalocyanine/polyaniline three-element composite material, and preparation method and application thereof

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specific Embodiment approach 1

[0026] Embodiment 1: The carbon nanotube / phthalocyanine / polyaniline ternary composite material in this embodiment is composed of 0.40% carboxylated multi-walled carbon nanotubes and 2.48% tetra-β-carboxyphthalocyanine cobalt , 1.20% aniline, 4.97% ammonium persulfate, 48.04% N,N-dimethylformamide (DMF) and 42.91% distilled water; the specific preparation method is achieved through the following steps:

[0027] Step 1, divide the distilled water into two equal parts, and add ammonium persulfate to one of the distilled waters to prepare ammonium persulfate solution;

[0028] Step 2. Add tetra-β-carboxymetallophthalocyanine cobalt and carboxylated multi-walled carbon nanotubes to N,N-dimethylformamide (DMF) sequentially, ultrasonically vibrate for 2h at an ultrasonic frequency of 40kHz, and centrifuge Separate, wash with distilled water, dry at 80°C, then add aniline and another portion of distilled water weighed in step 1, vibrate ultrasonically for 30min at an ultrasonic freque...

specific Embodiment approach 2

[0047] Specific embodiment two: the carbon nanotube / phthalocyanine / polyaniline ternary composite material in this embodiment is made of 0.60% carboxylated multi-walled carbon nanotube, 1.47% tetra-beta-carboxy manganese phthalocyanine , 0.60% aniline, 3.95% ammonium persulfate, 46.92% N,N-dimethylformamide (DMF) and 46.46% distilled water; the specific preparation method is achieved through the following steps:

[0048] Step 1, divide the distilled water into two equal parts, and add ammonium persulfate to one of the distilled waters to prepare ammonium persulfate solution;

[0049] Step 2. Add tetra-β-carboxymetallomanganese phthalocyanine and carboxylated multi-walled carbon nanotubes to N,N-dimethylformamide (DMF) in turn, ultrasonically vibrate for 3h at an ultrasonic frequency of 40kHz, and centrifuge Separate, wash with distilled water, dry at 80°C, then add aniline and another portion of distilled water weighed in step 1, vibrate ultrasonically for 40min at an ultrasoni...

specific Embodiment approach 3

[0056] Specific Embodiment Three: The carbon nanotube / phthalocyanine / polyaniline ternary composite material in this embodiment is composed of 0.50% carboxylated multi-walled carbon nanotubes and 2.09% tetra-beta-carboxyphthalocyanine nickel , 1.00% aniline, 4.02% ammonium persulfate, 47.12% N,N-dimethylformamide (DMF) and 45.27% distilled water; the specific preparation method is achieved through the following steps:

[0057] Step 1, divide the distilled water into two equal parts, and add ammonium persulfate to one of the distilled waters to prepare ammonium persulfate solution;

[0058] Step 2, adding tetra-β-carboxymetallic nickel phthalocyanine and carboxylated multi-walled carbon nanotubes to N,N-dimethylformamide (DMF) in turn, ultrasonically vibrating for 2.5h at an ultrasonic frequency of 40kHz, Centrifuge, wash with distilled water, dry at 80°C, then add aniline and another portion of distilled water weighed in step 1, vibrate ultrasonically for 35 minutes at an ultra...

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Abstract

The invention provides a carbon nanotube/phthalocyanine/polyaniline three-element composite material, and a preparation method and application thereof, and relates to a three-element composite material, and a preparation method and application thereof. The invention aims to solve the technical problem that polyaniline can not be uniformly distributed on the surface of a carbon nanotube easily in the existing method. The three-element composite material provided by the invention is prepared from a nanotube, tetra-beta-carboxyl metal phthalocyanine, aniline, ammonium persulfate, N,N-dimethylformamide and distilled water. The method provided by the invention comprises the following steps: 1, equally dividing the distilled water into two equal parts, and adding the ammonium persulfate into one part of distilled water to prepare an ammonium persulfate solution; 2, sequentially adding the tetra-beta-carboxyl metal phthalocyanine and the carbon nanotube into the DMF (N,N-dimethylformamide), performing ultrasonic vibration, performing centrifugal separation, washing with water, drying, sequentially adding the aniline and the remaining distilled water, performing further ultrasonic vibration, and slowing adding the ammonium persulfate solution; and 3, performing stirring reaction, filtering, sequentially washing with distilled water and anhydrous ethanol, and drying. The product provided by the invention can be used in the field of chemical sensors.

Description

technical field [0001] The invention relates to a ternary composite material and its preparation method and application; in particular to a carbon nanotube / phthalocyanine / polyaniline ternary composite material and its preparation method and application. Background technique [0002] One-dimensional conductive nanomaterials possess many unique properties, such as tunable electrical conductivity, high specific surface area, etc., which make them attractive materials for chemical sensing. Carbon nanotubes are a typical one-dimensional conductive nanomaterial. Since their surface is completely composed of atoms, they have electrical properties that are very sensitive to environmental changes. However, when used as a sensing material, carbon nanotubes suffer from low sensitivity and poor selectivity. Another typical one-dimensional conductive nanomaterial is polyaniline nanowires. Polyaniline nanowires have a uniform network nanostructure, large specific surface area and high el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/02C08K9/04C08K7/24G01N27/00
CPCC08G73/0266C08K7/24C08K9/04C08K2201/011G01N27/00
Inventor 陈志敏吴昊吴峰肖菲王莹王彬贺春英吴谊群
Owner 青岛碳希新材料有限公司
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