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Supported catalyst as well as preparation method and application thereof

A supported catalyst and catalyst technology, which are applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of low efficiency, cumbersome preparation of supported catalysts, poor stability, etc., and simplify the preparation. method, good electrocatalytic performance, and the effect of controllable conditions

Active Publication Date: 2018-11-23
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Nevertheless, the preparation of supported catalysts in the prior art is cumbersome, inefficient, and poor in stability, which limits the use of Ti 3 C 2 T x Application of supported catalysts such as nanosheets as carriers in clean energy or solar cells

Method used

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  • Supported catalyst as well as preparation method and application thereof
  • Supported catalyst as well as preparation method and application thereof
  • Supported catalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The preparation method of the supported catalyst of the present embodiment comprises the following steps:

[0059] 1) Put 10g Ti 3 AlC 2 Soak in 100 mL of hydrofluoric acid for 12 h to remove Al element, then centrifuge, wash the obtained solid with distilled water for several times, and dry to obtain multilayer Ti 3 C 2 T x powder;

[0060] 2) The obtained multilayer Ti 3 C 2 T x The powder was immersed in dimethyl sulfoxide for 24 hours, and then centrifuged. After washing the obtained solid for many times, it was dispersed in 200 mL of distilled water, and then placed in an ultrasonic cell disintegrator for ultrasonic peeling for 4 hours, centrifuged for 30 minutes, and freeze-dried to obtain black ti 3 C 2 T x Nanosheets;

[0061] 3) Transfer 1800 μL of ethylene glycol into a 4.0 mL glass vial, and then add 2 mg of the obtained Ti 3 C 2 T x The nanosheets were uniformly dispersed by ultrasonic treatment for 15 minutes to obtain a carrier dispersion;

...

Embodiment 2

[0067] The difference between the preparation method of the supported catalyst in this example and the preparation method of Example 1 is only that in step 5), the plasma irradiation treatment time is 3 minutes;

[0068] The supported catalyst prepared in this example is also denoted as PtO a PdO b NPs@Ti 3 C 2 T x . The suspension prepared in this example was stored at 4°C for further electrochemical measurements.

[0069] The supported catalyst of this embodiment is prepared by the preparation method of this embodiment.

Embodiment 3

[0071] The difference between the preparation method of the supported catalyst in this example and the preparation method of Example 1 is only that in step 5), the time of plasma irradiation treatment is 5 minutes;

[0072] The supported catalyst prepared in this example is also denoted as PtO a PdO b NPs@Ti 3 C 2 T x . The suspension prepared in this example was stored at 4°C for further electrochemical measurements.

[0073] The supported catalyst of this embodiment is prepared by the preparation method of this embodiment.

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Abstract

The invention relates to a supported catalyst as well as preparation method and application thereof, and belongs to the technical field of supported catalysts. The preparation method of the supportedcatalyst comprises the following steps: providing a mixed dispersion of a carrier and a catalyst precursor in a solvent; irradiating the mixed dispersion with plasma to obtain the supported catalyst,wherein the solvent includes an oxygen-source solvent and water, and the oxygen-source solvent is an alcohol compound; the catalyst precursor is a water-soluble transition metal element compound. According to the preparation method of the support catalyst provided by the invention, the preparation method of the supported catalyst is simplified; moreover, the size of catalyst grains depositing on the carrier surface is reduced, the dispersion uniformity of the catalyst on the carrier surface is improved, and the electro-catalytic property of the supported catalyst is enhanced.

Description

technical field [0001] The invention relates to a supported catalyst, a preparation method and application thereof, and belongs to the technical field of supported catalysts. Background technique [0002] With the continuous growth of energy and fossil fuel consumption demand, it is urgent to formulate innovative strategies for high energy utilization and seek environmental protection, renewable energy and clean energy. Among the many potential technologies for developing energy, hydrogen is considered one of the most important candidates to replace fossil fuels due to its clean, abundant and renewable properties. Among the methods of hydrogen production, such as electrolysis of water, electrocatalytic water splitting and photocatalytic water splitting. For electrocatalytic reactions, hydrogen evolution reaction (HER) and oxygen reduction reaction (OER) have gained increasing importance in promising clean energy technologies such as metal-air batteries, fuel cells, and wate...

Claims

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Application Information

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IPC IPC(8): B01J27/22B01J37/34H01M4/90H01M4/92
CPCB01J27/22B01J37/347H01M4/9016H01M4/9075H01M4/921H01M4/925Y02E60/50
Inventor 何领好张治红王明花田宽宋英攀贾巧娟
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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