A nitrogen-doped ferrous sulfide redox catalyst material and its preparation and application

A catalyst, nitrogen doping technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of poor stability, scarcity of resources, expensive Pt-based cathode catalysts, etc., and achieve low prices. , high catalytic activity, abundant reserves effect
CN112421060BActive Publication Date: 2021-12-17DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2021-12-17

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Abstract

The invention discloses a preparation method of a nitrogen-doped ferrous sulfide (N-FeS) flower-shaped microsphere material and its electrocatalytic oxygen reduction application. In the method, diethyl dithiocarbamate is used as a sulfur source to react with ferrous chloride in an aqueous solution to obtain the precipitation of a sulfur-containing iron-based precursor. The FeS obtained after the sulfidation reaction has a stable morphology, and the flakes are combined to form flower-like microspheres with uniform sizes. The material can be used as an electrocatalyst to catalyze the oxygen reduction reaction, and has high catalytic activity and stability. This synthesis method provides a great possibility for the synthesis of oxygen-reducing electrocatalytic materials with controllable composition and structure, high specific surface area and good durability. At the same time, the synthesis method is simple and easy, the cost is low, it is suitable for large-scale production, and it shows excellent activity and stability in the electrochemical oxygen reduction reaction, and has a good industrial application prospect.
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Description

technical field

[0001] The invention relates to a preparation method of a nitrogen-doped transition metal sulfide N-FeS flower-like microsphere catalyst and its electrocatalytic application. Background technique

[0002] Energy is an important material basis for economic growth and social development. Every epochal change in energy technology is accompanied by a leap in productivity, which promotes the great development and progress of human society. With the increase of population and rapid economic development, the global demand for energy is increasing. Energy crisis and environmental issues have become the important focus and scientific research hotspots in politics, economy, military affairs, diplomacy and other aspects in today's international society. Exploring the development of green and renewable energy technologies can fundamentally remove the dependence on fossil fuels. Therefore, more and more scientific researchers have begun to spare no effort to find and d...

Claims

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