Abstract: Provided are a cathode catalyst layer and a preparation method and use thereof, and a fuel cell. The method includes: mixing a catalyst, water, and an alcohol with a pore-forming agent to obtain a mixture; dispersing the mixture into a Nafion solution to obtain a slurry; and coating the slurry onto a surface of a diffusion layer to obtain a coated diffusion layer, and subjecting the coated diffusion layer to calcination and freeze-drying in sequence to obtain the cathode catalyst layer.

Abstract: Provided are a display control method and device, an electronic apparatus, and a storage medium. The display control method includes: in response to an instruction of receiving a target conversation message, displaying a message notification bar in a designated area of the graphical user interface; in response to a first touch operation on the message notification bar, switching and displaying display content from the initial content page to the target conversation page, and generating a floating window control in the graphical user interface; in response to a second touch operation on the floating window control, switching and displaying the display content from the target conversation page to the initial content page.

Abstract: Provided are a display control method and device, an electronic apparatus, and a storage medium. The display control method includes: in response to an instruction of receiving a target conversation message, displaying a message notification bar in a designated area of the graphical user interface; in response to a first touch operation on the message notification bar, switching and displaying display content from the initial content page to the target conversation page, and generating a floating window control in the graphical user interface; in response to a second touch operation on the floating window control, switching and displaying the display content from the target conversation page to the initial content page.