Application of BN to electrochemical ammonia production

Abstract

The invention relates to application of BN to electrochemical ammonia production, and belongs to the field of nano new materials. A BN nanosheet is used as a nitrogen reduction catalyst to be used forelectrochemical synthesizing of ammonia gas under acidic conditions. According to the application, the BN nanosheet is firstly used as the nitrogen reduction catalyst to be used for electrochemical synthesizing of the ammonia gas under the acidic conditions, high catalytic activity and selectivity are shown, and as a metal-free material, BN is more stable in actual use and is more environment-friendly. According to the application, the treatment scheme of the BN nanosheet is simple and easy, operation is easy, all processes do not involve high temperature reactions, energy is saved, and the application is more consistent with the concept of sustainable development; the BN nanosheet catalyst is used for electrochemical synthesizing of the ammonia gas under the acidic conditions, and the Faraday efficiency as high as 4.7% is shown, and the performance is higher than that of most currently-proven water-based nitrogen reduction catalysts; and in addition, the good selectivity and stability are achieved, and the BN nanosheet is an excellent new nitrogen reduction catalyst.

Description

technical field [0001] The invention relates to the application of BN in electrochemical ammonia production, belonging to the field of new nanometer materials. Background technique [0002] As a building block of reactive nitrogen, ammonia plays an essential role in the manufacture of fertilizers, pharmaceuticals, resins, explosives and dyes, among others. With the further demand of production activities and the development of social economy, the demand for ammonia in industry is also increasing, which thus promotes the exploration of green and sustainable ammonia production methods in the scientific research community. In today's industrial production, the Haber method is still the most important ammonia production method and occupies a pivotal position. However, this method has also brought huge environmental pollution while being widely used, such as the demand for fossil energy. and carbon dioxide emissions. This approach obviously does not conform to the concept of gr...

AI Technical Summary

Problems solved by technology

At present, electrochemical nitrogen reduction (NRR) has been favored by the scientific research community due to its simple equipment, easy operation, and environmental friendliness. The most critical factor for this method is to seek catalysts with high selectivity and catalytic activity. The catalyst is developed based on noble metals and some heavy metal elements, so the acquisition of elements and subsequent reactions may have a certain negative impact on the environment

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