The reporter learned from the University of Science and Technology of China on the 15th that the Hefei National Institute for Physical Sciences at the Microscale and Professor Zeng Jie of the School of Chemistry and Materials Science used a cadmium selenide cadmium alloy nanorod with adjustable composition as a catalyst. Efficient electroreduction of carbon dioxide is syngas. The catalyst of the cadmium selenide cadmium alloy nanorod exhibits high activity and high stability in the carbon dioxide electroreduction reaction and can regulate the composition ratio of the synthesis gas over a wide range. The results were recently published in the internationally renowned "Advanced Materials" magazine.
Syngas, the mixture of carbon monoxide and hydrogen, is an important synthetic raw material in petrochemicals. For different chemical processes, the optimal composition ratio of the required syngas is also different. Traditional methods for preparing syngas include the gasification of coal and the reforming of natural gas, both of which require the consumption of non-renewable energy. In contrast, the use of carbon dioxide and water as raw materials for the electroreduction of carbon dioxide in aqueous solutions is an ideal method for the sustainable production of synthesis gas. However, current catalysts for reducing carbon dioxide are difficult to control the composition ratio of synthesis gas over a wide range while ensuring high current density.
To address this issue, researchers used liquid-phase synthesis technology to design and synthesize cadmium selenide cadmium alloy nanorods with adjustable composition in the near future. The researchers found that the higher the selenium content in the catalyst, the more intermediate the hydrogen in the reaction and the higher the proportion of hydrogen components in the synthesis gas product. Studies have shown that at an overpotential of -1.2V, the ratio of carbon monoxide to hydrogen in the product synthesis gas can be freely adjusted between 4:1 and 1:4.
In addition, in the continuous test of the stability of the catalyst for 10 hours, the current density remained basically stable, and the composition ratio of the product synthesis gas also remained basically unchanged. (Reporter Wu Changfeng)
Especially with the emergence of microprocessors and the continuous improvement of industrial automation technology, load cells have become a necessary device in process control.
From the weight measurement of large tanks and hoppers that could not be weighed before, and the measurement and control of crane scales, automobile scales, etc., to the batching system for mixing and distributing a variety of raw materials, automatic detection in the production process, and control of the powder and granular material feed volume, etc., Have applied the load cell.
At present, load cells are mainly used in various electronic weighing instruments, industrial control fields, online control, installation overload alarms, material testing machines, and other fields, such as electronic truck scales, electronic platform scales, electronic forklifts, dynamic axle load scales, electronic hook scales, etc., Electronic pricing scales, electronic steel scales, electronic rail scales, hopper scales, batching scales, filling scales, etc.
load cell for hopper scales, load cell for industrial use, load cell for automatic detection
Zhejiang Nanhua Electronic Technology Co., Ltd , https://www.nhloadcells.com