cuh catalyst, cuh derived catalyst, preparation method and application

Abstract

The present invention provides a CuH catalyst, a CuH-derived catalyst, a preparation method and an application. The CuH catalyst is prepared by a liquid-phase chemical method using a borane complex or the like as a reducing agent. Preparation of CuH catalyst with uniform particle size distribution and relatively pure crystal, the preparation method is simple, and suitable for large-scale production; the prepared CuH catalyst has a rough active surface, and can spontaneously derivatize into a series of different Cu-based crystal phases in air or oxygen The catalyst has a simple process and does not require complicated surface plasma treatment and heat treatment to control the crystal phase structure of Cu-based catalysts; Cu-based catalysts derived from CuH catalysts 2 O / CuO mixed crystalline phase catalysts exhibit excellent electrochemical CO 2 Restoration performance, C 2 H 4 Selectivity, multi-carbon product selectivity, and industrial-level current density electrolysis and catalytic stability can be realized; the present invention can realize Cu-based catalyst electrocatalytic CO 2 Reduction to prepare C 2 H 4 wait C 2+ Industrial application of chemicals.

Description

technical field [0001] The invention belongs to the field of industrial electrocatalysis, and relates to a CuH catalyst, a CuH derivative catalyst, a preparation method and an application. Background technique [0002] Electrochemical CO 2 Reduction can take advantage of renewable and surplus power resources to convert CO 2 Converting into high-value fuels and chemicals has become a potential energy conversion and storage technology. At the same time, it is expected to achieve a zero-emission carbon cycle in the future and effectively alleviate the greenhouse effect, which has important practical significance. Among them, C 2 H 4 as a CO 2 Electrochemical reduction products, whose production industry is the core of the petrochemical industry, in recent years, electrochemical CO 2 Reduction to prepare C 2 H 4 It has attracted much attention as a clean and efficient technology. [0003] Cu-based catalysts are currently the only catalysts capable of electrocatalyzing CO...

AI Technical Summary

Problems solved by technology

[0003] Cu-based catalysts are currently the only ones capable of electrocatalyzing CO 2 Restore Production C 2 h 4 However, there are currently many problems such as complex preparation methods, unsuitable for large-scale production, poor product selectivity, low catalytic activity, and poor catalytic stability.

Although the size and morphology control, oxidation state control and other methods have improved the CO2 to a certain extent. 2 Restore Production C 2 h 4 selectivity, but still failed to achieve stable C at industrial level current 2 h 4 Production

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