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A kind of quadruple modified molybdenum disulfide electrocatalyst and preparation method

A technology of molybdenum disulfide and electrocatalyst, which is applied in the direction of catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., and can solve problems such as excessive electric energy and consumption

Active Publication Date: 2022-06-21
TAIZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Excessive overpotential will consume too much electric energy in the process of electrocatalytic water splitting to produce hydrogen. Therefore, how to further reduce the overpotential of electrocatalysts has become a difficult point in this field.

Method used

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  • A kind of quadruple modified molybdenum disulfide electrocatalyst and preparation method
  • A kind of quadruple modified molybdenum disulfide electrocatalyst and preparation method
  • A kind of quadruple modified molybdenum disulfide electrocatalyst and preparation method

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Embodiment Construction

[0011] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0012] The specific steps of this embodiment are as follows: spread 1 gram of the obtained precursor evenly on the SiO 2 In the groove of the composition, the size of the groove is 1 square centimeter; a pulsed laser with a power density of 2.5 watts / square centimeter and a wavelength of 532 nanometers is used to uniformly scan and illuminate the sample, and then the sample is re-planed, Repeated laser scanning was performed on the sample for a total of 5 times to ensure that the sample was scanned evenly by the laser; the desired quadruple-modified molybdenum disulfide electrocatalyst was obtained after laser treatment.

[0013] In order to illustrate the technical effect of this embodiment, the purchased molybdenum disulfide without further treatment is used as a comparative example of this embodiment.

[0014] For the samples obtained according to ...

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Abstract

The invention discloses a method for quadruple modified molybdenum disulfide electrocatalyst, which comprises the following steps: preparation of a precursor; pulse laser irradiation treatment. The invention also discloses a quadruple modified molybdenum disulfide electrocatalyst, which is prepared by the above-mentioned method and used in the field of catalyzing hydrogen evolution.

Description

technical field [0001] The invention relates to a quadruple-modified molybdenum disulfide electrocatalyst and a preparation method. [0002] technical background [0003] The increasingly serious environmental crisis and global energy shortage force people to look for sustainable and renewable energy that can replace traditional fuels. Hydrogen energy has become one of the alternatives to traditional fuel energy because of its non-polluting combustion products, high combustion value and large-scale stable storage. Hydrogen production by electrocatalytic water splitting is an environmentally friendly and efficient method for hydrogen production. [0004] The efficiency of electrocatalytic hydrogen production depends on the electrocatalyst used to accelerate the progress of the hydrogen production reaction. One of the criteria used to characterize the performance of electrocatalysts is the overpotential. Excessive overpotential will consume too much electrical energy in the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/051B01J35/00B01J37/34
CPCB01J27/051B01J37/349B01J35/0033
Inventor 林志萍申士杰钟文武吴建波王宗鹏
Owner TAIZHOU UNIV
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