Electrochemical aeration assembly capable of constructing three-dimensional gas-solid-liquid three-phase interface

• Main Authors: CHEN SHUO, YU HONGTAO, JEON SEOB, GU YUWEI, KANG WENDA
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2022
• Subjects: APPARATUS THEREFOR; CHEMISTRY; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; METALLURGY

The invention provides an electrochemical aeration assembly capable of constructing a three-dimensional gas-solid-liquid three-phase interface. A millimeter-scale or micron-scale vertical communicating channel of a porous micro-channel material contained in the assembly is provided with adjustable micron-scale or nano-scale pores. In the absence of a gas diffusion layer, gas introduced into the assembly can directly reach the surface of a catalyst after passing through the porous micro-channel material, so that the construction of a three-dimensional three-phase interface is realized. The assembly is simple in preparation process, and the problem that a solution permeates into the gas diffusion layer after a traditional gas diffusion electrode operates for a long time is solved. 本发明提供一种可构建三维气-固-液三相界面的电化学曝气组件，该组件包含的多孔微通道材料的毫米或微米级竖直连通通道上具有可调节微米级或纳米级孔隙。在无气体扩散层的情况下，通入该组件的气体通过多孔微通道材料后可直接到达催化剂表面，实现三维三相界面的构建。该组件制备流程简单，避免了传统气体扩散电极长时间运行之后溶液渗透到气体扩散层的问题。