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FeCo-PPc catalyst, and preparation method and application thereof

A feco-ppc, catalyst technology, applied in electrodes, electrical components, electrolysis process and other directions, can solve the problems of high cost, poor stability, limited resources, etc., achieve simple preparation method, easy to achieve large-scale industrial production, excellent catalytic activity and stability effects

Pending Publication Date: 2021-08-20
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example RuO 2 and IrO 2 The noble metal oxides are currently the most effective OER catalysts, but the problems of high cost, limited resources and poor stability greatly limit their large-scale commercial applications.

Method used

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  • FeCo-PPc catalyst, and preparation method and application thereof
  • FeCo-PPc catalyst, and preparation method and application thereof
  • FeCo-PPc catalyst, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0036] The FeCo-PPc catalyst disclosed in the embodiments of the present invention has the following structural formula:

[0037]

[0038] Wherein, the molar ratio of Fe and Co is 1:1.

[0039] The FeCo-PPc catalyst disclosed in the examples of the present invention can be prepared by a one-step solid-phase synthesis method. Specifically, the preparation method embodiment of the FeCo-PPc catalyst includes the following steps:

[0040] First, 1.7mol PMDA, 10mol urea, 3mol NH 4 Cl (ammonium chloride), 0.35mmol H 24 Mo 7 N 6 o 24 4H 2 O (ammonium molybdate tetrahydrate), 0.37mol FeCl 3 ·6H 2 O (ferric chloride hexahydrate) and 0.37mol CoCl 2 ·6H 2 O (cobalt chloride hexahydrate) mixed and ground.

[0041] Then, the ground mixture was transferred into a crucible and heated in a muffle furnace at 220 °C for 3 h with the heating atmosphere being air. After cooling to room temperature, the obtained product was washed with water, acetone and ethanol in sequence, and the...

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PUM

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Abstract

The invention relates to a FeCo-PPc catalyst, and a preparation method and an application thereof. In one embodiment of the invention, the preparation method of the FeCo-PPc catalyst comprises the following steps: mixing PMDA, urea, ammonium chloride, ammonium molybdate, Fe salt and Co salt according to a preset proportion, grinding, heating the obtained mixture at 220 DEG C for 3 hours, cooling to a room temperature, washing with water and an organic solvent in sequence, and finally drying to obtain the FeCo-PPc catalyst. The FeCo-PPc catalyst disclosed by the invention has excellent catalytic activity and stability when being applied to an OER reaction, and has the advantages that the preparation method is simple, and large-scale industrial production is easy to realize.

Description

technical field [0001] The invention relates to the field of OER catalysts; more specifically, it relates to a FeCo-PPc catalyst applied to OER reactions and a preparation method thereof. Background technique [0002] With the rapid growth of energy demand, the increasingly serious energy crisis and environmental problems have become important factors restricting the development of the energy industry, so it is necessary to establish a sustainable clean energy system. Among them, energy conversion and storage devices related to electrochemistry have received more and more attention, and the two most representative research directions are metal-air batteries and electrolysis of water. [0003] In many energy storage processes such as metal-air batteries and electrolysis of water, the OER reaction (oxygen evolution reaction) is one of the important reactions, and the four-electron transfer OER reaction process (4OH - →2H 2 O+4e - +O 2 , in alkaline media), the slow reactio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/88H01M4/90C25B1/04C25B11/085
CPCH01M4/8882H01M4/9008C25B1/04Y02E60/36Y02E60/50
Inventor 胡觉戚强龙张呈旭张利波
Owner KUNMING UNIV OF SCI & TECH