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Preparation method of carbon-coated CoS2-FeS2 heterojunction nanosheet

A technology of cos2-fes2 and heterojunction, which is applied in the field of preparation of carbon-coated CoS2-FeS2 heterojunction nanosheets, can solve problems such as endangering the human living environment and resource crisis, and achieve the effect of simple, efficient and low-cost methods

Active Publication Date: 2021-03-12
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In industry mainly through CH 4 and H 2 O high temperature reaction to produce hydrogen, the use of fossil fuels and environmental pollution have caused a resource crisis and endangered the human living environment

Method used

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  • Preparation method of carbon-coated CoS2-FeS2 heterojunction nanosheet

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Carbon Coated CoS 2 -FeS 2 The specific preparation process of heterojunction nanosheets is as follows: add 170mg CoCl 2 ·6H 2 O, 0.54g FeCl 3 ·6H 2 O, 0.45g copper reagent (C 5 h 10 NS 2 Na·3H 2 (2) and 60mL of water, stirred until dissolved, transferred the obtained liquid into a stainless steel reaction kettle lined with polytetrafluoroethylene, hydrothermally treated at 240°C for 12h, then cooled naturally to room temperature, and the product was washed by centrifugation and dried.

Embodiment 2

[0017] Add 50mg CoCl to the beaker 2 ·6H 2 O, 0.54g FeCl 3 ·6H 2 O, 0.45g copper reagent (C 5 h 10 NS 2 Na·3H 2 (2) and 60mL of water, stirred until dissolved, transferred the obtained liquid into a stainless steel reaction kettle lined with polytetrafluoroethylene, hydrothermally treated at 240°C for 12h, then cooled naturally to room temperature, and the product was washed by centrifugation and dried.

Embodiment 3

[0019] Add 240mg CoCl to the beaker 2 ·6H 2 O, 0.54g FeCl 3 ·6H 2 O, 0.45g copper reagent (C 5 h 10 NS 2 Na·3H 2 (2) and 60mL of water, stirred until dissolved, transferred the obtained liquid into a stainless steel reaction kettle lined with polytetrafluoroethylene, hydrothermally treated at 240°C for 12h, then cooled naturally to room temperature, and the product was washed by centrifugation and dried.

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Abstract

The invention relates to a preparation method of a carbon-coated CoS2-FeS2 heterojunction nanosheet, in particular to a carbon-coated CoS2-FeS2 heterojunction nanosheet prepared by taking CoCl2.6H2O,FeCl3.6H2O and a copper reagent C5H10NS2Na.3H2O as precursors through hydro-thermal synthesis. The carbon-coated CoS2-FeS2 heterojunction nanosheet can efficiently electrocatalyze and decompose waterat room temperature.

Description

technical field [0001] The present invention relates to carbon coated CoS 2 -FeS 2 The invention discloses a method for preparing heterojunction nanosheets, belonging to the field of material preparation. Background technique [0002] Transition metal sulfides have attracted extensive attention due to their special physical and chemical properties. FeS 2 It is abundant in the earth's crust and has excellent optical, magnetic, electrical, and catalytic properties, and has become a recent research hotspot. But FeS 2 The disadvantages of low conductivity and poor cycle stability limit its further application. Therefore modulation of FeS 2 Surface Composition or Nanosized FeS 2 , Changing its performance has important practical significance. [0003] Modified FeS 2 Because of its simple process and low cost, it has become a modulating FeS 2 important method of material. For example: Zhang et al. 2 deposited onto TiO 2 Synthesized FeS on nanotubes 2 / TiO 2 Nanotube...

Claims

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Application Information

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IPC IPC(8): C25B1/04C25B11/091
CPCC25B1/04Y02E60/36
Inventor 李忠成王文嫔
Owner QINGDAO UNIV OF SCI & TECH