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Cobalt-doped tin disulfide nano-sheet array material, preparation method and applications thereof

A nanosheet array and tin disulfide technology, applied in the field of nanomaterials, can solve the problems of inability to achieve catalytic performance, impact on the environment and resources, and cumbersome preparation methods, and achieve improved electrochemical catalytic performance, low production costs, and high product purity Effect

Active Publication Date: 2019-02-01
ANHUI NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the catalytic activity of traditional catalysts for electrolysis of water is low, and most of the preparation methods are cumbersome, which cannot achieve good catalytic performance and have a negative impact on the environment and resources.

Method used

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  • Cobalt-doped tin disulfide nano-sheet array material, preparation method and applications thereof
  • Cobalt-doped tin disulfide nano-sheet array material, preparation method and applications thereof
  • Cobalt-doped tin disulfide nano-sheet array material, preparation method and applications thereof

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Embodiment 1

[0034] A preparation method of a cobalt-doped tin disulfide nanosheet array material, comprising the following steps:

[0035] S1: Put the carbon fiber into hydrochloric acid, ethanol and double distilled water in sequence and perform ultrasonic cleaning for 15 minutes respectively; that's it;

[0036] S2: add 2mmol SnCl 4 ·5H 2 O. 8mmol thioacetamide was dissolved in 40mL isopropanol, and different amounts of Co(NO 3 ) 2 ·6H 2 0 and continue to stir for 30min to obtain a mixed solution. The ratio of the amount of Co to Sn is represented by x, and x is respectively 0, 0.05, 0.15 and 0.25 in this example. Pour the obtained mixed solutions with different cobalt contents into the reaction kettle respectively, immerse the carbon fiber treated by S1 in the mixed solution, tighten the lid of the kettle to seal, react at 180°C for 24h, take out the reaction kettle and cool it down to room temperature naturally, and wash with ethanol respectively Rinse with double distilled water...

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Abstract

The invention provides a cobalt-doped tin disulfide nano-sheet array material, a preparation method and applications thereof. Compared with the method in the prior art, the method of the present invention has the following characteristics that in a closed high temperature and high pressure reaction kettle, isopropanol is used as a reaction solvent, a tin source, a sulfur source and a cobalt salt are uniformly mixed according to a certain ratio, and a reaction system is heated to generate a high pressure environment so as to prepare the cobalt-doped tin disulfide nano-sheet array material, wherein the two-dimensional nano-sheet structure increases the surface area of the whole material, and the small particles SnS2 attached to the surface of the nano-sheet can provide more active sites so as to easily transfer and transmit electrons, such that the material has good electrochemical catalytic response and good stability; and carbon fiber as a substrate has good electrical conductivity, can be used directly as a flexible electrode material, and cannot affect an electrode reaction, such that the carbon fiber material is selected as the substrate for hydrothermal synthesis, the two-dimensional structure grows on the surface of the carbon fiber, and the obtained material is directly used for catalyzing oxygen evolution reactions.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials, and in particular relates to a cobalt-doped tin disulfide nanosheet array material and a preparation method and application thereof. Background technique [0002] With the increasing energy crisis, it is urgent to replace fossil fuels with new clean fuels. This has prompted intensive research into various types of clean and sustainable energy conversion and storage technologies. Water splitting has attracted interest as an efficient means of energy conversion. Hydrogen and oxygen produced by water splitting are widely regarded as sustainable and sufficient energy carriers, capable of solving current energy energy problems due to high energy density and carbon-free storage upon release. [0003] However, the catalytic activity of traditional catalysts for electrolysis of water is low, and most of the preparation methods are cumbersome, which cannot achieve good catalytic performance and ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/043B01J35/02B01J35/10C25B1/04C25B11/04
CPCC25B1/04C25B11/04B01J27/043B01J35/33B01J35/40B01J35/61Y02E60/36
Inventor 张小俊蒋美文
Owner ANHUI NORMAL UNIV
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