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A highly efficient copper-doped mos 2 Preparation method of nanosheet array electrocatalyst

A nanosheet array, electrocatalyst technology, applied in physical/chemical process catalysts, chemical instruments and methods, electrolysis process, etc., can solve the problem of limited electrocatalytic water splitting performance, less exposure of active sites, weak surface catalytic activity, etc. problem, to achieve the effect of efficient electrocatalytic decomposition of water for hydrogen production, low price, and increased surface catalytic activity

Active Publication Date: 2017-12-22
WENZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But bulk MoS 2 Due to the shortcomings of its less exposed active sites, poor hydrophilicity, and weak surface catalytic activity, its electrocatalytic water splitting performance is limited.

Method used

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  • A highly efficient copper-doped mos <sub>2</sub> Preparation method of nanosheet array electrocatalyst
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  • A highly efficient copper-doped mos <sub>2</sub> Preparation method of nanosheet array electrocatalyst

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Experimental program
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Embodiment 1

[0036] (1) Synthesis of MoS 2 nanosheet array

[0037] Weigh 123mg ammonium molybdate tetrahydrate (Mo 7 o 24 .6(NH 4 ).4(H 2 O)), 228mg thiourea (CH 4 N 2 S) After putting into the polytetrafluoroethylene liner (V=60mL) of the autoclave, add 35mL of water, and ultrasonically dissolve in an ultrasonic cleaning instrument for 10min. A piece of 1 cm × 3 cm stainless steel mesh wire was put into this solution, and the autoclave was reacted at a constant temperature of 220° C. for 5 hours in an electric constant temperature blast drying oven. After the reaction was completed, cool to room temperature, and the product was ultrasonicated in ethanol and water for 5 minutes, respectively, and then put into a drying oven to dry for use. figure 1 For the obtained MoS 2 Scanning electron images of nanosheet arrays, 1a) top view and 1b) cross-sectional view. It can be seen from the figure that the material is a nanosheet array structure, and the array height is about 1 μm.

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Abstract

The invention discloses an efficient copper-doped MoS 2 Preparation method of nanosheet array electrocatalyst. The preparation method uses 2300 mesh stainless steel mesh as the base material, ammonium molybdate tetrahydrate (Mo 7 O 24 .6(NH 4 ).4(H 2 O)), thiourea (CH 4 N 2 S) is the raw material, and the material is synthesized at a certain synthesis temperature and time in the aqueous phase system; the resulting MoS 2 The nanosheet array material is further doped with copper to obtain efficient electrocatalytic activity. The product provided by the invention is green, environmentally friendly, can be prepared on a large scale, and has efficient electrocatalytic water decomposition and hydrogen production performance.

Description

technical field [0001] The invention relates to the field of inorganic nano functional materials, in particular to a highly efficient copper-doped MoS 2 Preparation method of nanosheet array electrocatalyst. Background technique [0002] With the development of society and economy, environmental pollution is becoming more and more serious, and the global fossil energy is gradually exhausted. For the sustainable development of the world, how to solve the problem of energy shortage is one of the most urgent and challenging tasks facing all mankind. In order to fundamentally solve this problem, it is urgent to find alternative green energy sources to reduce human dependence on non-renewable fossil fuels. Hydrogen is an ideal clean energy. In comparison, water splitting is an ideal green route to hydrogen production. At present, among thermal water splitting, photocatalytic water splitting and electrocatalytic water splitting, electrocatalytic water splitting has the most pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/051B01J35/10C25B1/04
CPCC25B1/04B01J27/0515B01J35/33B01J35/60Y02E60/36
Inventor 马德琨陈邦宝陈修马剑华陈嘉钟嘉鑫黄少铭
Owner WENZHOU UNIV
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