Abstract: A nickel-iron catalytic material, a preparation method thereof, and a use thereof in the hydrogen production through water electrolysis and the preparation of a liquid solar fuel (LSF) are provided. The nickel-iron catalytic material is prepared by using a soluble iron salt as a raw material and growing on a modified nickel substrate under mild conditions, and the nickel-iron catalytic material can be used in the industrial alkaline water electrolysis under harsh conditions. The nickel-iron catalytic material includes a nickel metal substrate and a catalytically-active layer with iron and nickel. When used to promote a water splitting reaction, the nickel-iron catalytic material can reduce the energy consumption per m3 of hydrogen production through industrial alkaline water electrolysis from 4.4 kWh to 4.01 kWh, thereby increasing the conversion of solar energy to methanol by 9.7%.

Abstract: A self-moving device, including: a housing, provided with a motor; a moving module, including a track, the track, driven by the motor, moving the self-moving device; a working module; a control module, configured to control movement of the moving module and working of the working module; and a first sensor and a second sensor, configured to detect an obstacle in a moving direction of the self-moving device. The first sensor is configured to detect a first area in the moving direction, the second sensor is configured to detect a second area in the moving direction, and the first area and the second area are arranged perpendicular to the moving direction. The control module controls a moving manner of the self-moving device according to sensing results of the first sensor and the second sensor.

Abstract: A self-moving device, including: a housing, provided with a motor; a moving module, including a track, the track, driven by the motor, moving the self-moving device; a working module; a control module, configured to control movement of the moving module and working of the working module; and a first sensor and a second sensor, configured to detect an obstacle in a moving direction of the self-moving device. The first sensor is configured to detect a first area in the moving direction, the second sensor is configured to detect a second area in the moving direction, and the first area and the second area are arranged perpendicular to the moving direction. The control module controls a moving manner of the self-moving device according to sensing results of the first sensor and the second sensor.

Abstract: The present disclosure provides a pixel structure including a plurality of pixel cells arranged into a plurality of rows. Each row includes a plurality of pixel-cell groups, each including a predetermined number of subpixels with different colors arranged along the row direction. The pixel-cell groups are arranged in a zigzag manner along a column direction. For any two neighboring rows, each subpixel in one row is divided into two secondary subpixels along the row direction, and each subpixel in the other row is divided into two secondary subpixels along the column direction. The colors of the subpixels in each pixel-cell group of the odd-numbered rows include a first color, a second color, and a third color, respectively along the row direction. The colors of the subpixels in each pixel-cell group of the even-numbered rows are the second color, the third color, and the first color, respectively along the row direction.

Abstract: The present disclosure provides a pixel structure including a plurality of pixel cells arranged into a plurality of rows. Each row includes a plurality of pixel-cell groups, each including a predetermined number of subpixels with different colors arranged along the row direction. The pixel-cell groups are arranged in a zigzag manner along a column direction. For any two neighboring rows, each subpixel in one row is divided into two secondary subpixels along the row direction, and each subpixel in the other row is divided into two secondary subpixels along the column direction. The colors of the subpixels in each pixel-cell group of the odd-numbered rows include a first color, a second color, and a third color, respectively along the row direction. The colors of the subpixels in each pixel-cell group of the even-numbered rows are the second color, the third color, and the first color, respectively along the row direction.