Light flexible paper-based 1T-phase tungsten disulfide/carbon nanotube composite thermoelectric material and preparation method thereof

A carbon nanotube composite, tungsten disulfide technology, applied in the direction of thermoelectric device node lead-out material, thermoelectric device manufacturing/processing, etc., can solve problems such as unfavorable ZT value, low conductivity, etc. The effect of reducing thermal conductivity and increasing the Seebeck coefficient
CN110911544AActive Publication Date: 2020-03-24CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
Publication Date
2020-03-24

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Abstract

The invention belongs to the technical field of new energy thermoelectric conversion materials, and particularly relates to a light flexible and high-thermoelectric-conversion-efficiency composite thermoelectric material taking common cellulose paper as a substrate and a preparation method of the composite thermoelectric material. According to the preparation method, carbon nanotubes dispersed bya surfactant are used as a molecular template, and 1T-phase tungsten disulfide nanosheets with metalloid properties are grown on the surfaces of the carbon nanotubes through a concise and efficient hydrothermal synthesis method, so that 1T-phase tungsten disulfide nanosheet / carbon nanotube composite powder is obtained. The novel cellulose paper-based 1T-phase tungsten disulfide / carbon nanotube composite thermoelectric material is obtained by taking common cellulose paper with high water absorption as a substrate material and combining a roller press calendering and chemical doping method. According to the prepared composite thermoelectric material, the flexibility of the cellulose paper is reserved, meanwhile, the characteristics of all components of the composite material are combined, the excellent thermoelectric performance is obtained, and a new thought and direction are developed for development and application of high-performance thermoelectric materials in the field of new energy.
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Description

technical field

[0001] The invention belongs to the technical field of new energy thermoelectric conversion materials, and relates to a flexible, lightweight and high thermoelectric conversion efficiency composite thermoelectric material based on common cellulose paper and a preparation method thereof. Background technique

[0002] In the context of the current worldwide energy crisis and increasingly severe environmental protection situation, people have paid extensive attention to finding clean and safe new energy and improving the efficiency of existing energy. A thermoelectric generator is a technology that uses the thermoelectric effect of materials, usually using waste heat or solar energy as a heat source to generate electricity. Compared with traditional power generation technology, it has the advantages of no pollution, no noise, no wear, small size, fast response, high reliability and long life. Thermoelectric materials are the core key materials for thermoelectri...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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