New platinum catalyst reduces hydrogen fuel production costs
Hydrogen production cost is high and it is easily oxidized in fuel cells, which are two major obstacles to the development of hydrogen energy. At present, hydrogen production generally uses catalysts with palladium, platinum and other precious metals as the main components. Chemists at the Southern Federal University of Russia have developed a new platinum catalyst, in which the platinum content is greatly reduced, but the efficiency is significantly improved. The research results were published in the "International Journal of Hydrogen Energy".
Chemists and biologists have been trying to replace these precious metals with nickel or other cheap metal compounds, nanoparticles, or proteins from various microorganisms, but so far, no platinum substitute has been found. In the past, chemists tried to coat nickel, copper and other metal nanoparticles with platinum to improve catalyst efficiency, but because the shape of such particles is difficult to control, the edges between the metal layers are too sharp to protect them Fragile kernel.
The research project host Vladimir Gutman and his colleagues solved this problem. They developed a new type of particle that allows platinum atoms to increase evenly from the core of the nanostructure to the surface. The first round of testing showed that the degradation rate of this nanoparticle was 7-8 times slower than that of ordinary nanoparticles.
The researchers pointed out that this catalyst can also be used to make other metals for fuel cells, which will accelerate the development of hydrogen energy and help the global economy embark on a sustainable development path.
LED Sensor Batten Lights has options of microwave sensor and infrared sensor. There are two sensing modes. One is 0-10v dimming, and the other is on/off.
The main difference between these two modes is that the 0-10v dimming mode can set the brightness of the light after the person walks, and the pending time of this brightness can also be set. On/off mode, you can only set the time for the lights to turn off after a person walks, but not the brightness (that is, functions 3, 4 cannot be implemented). The 0-10v dimming mode is more intelligent.
Briefly introduce the function of sensor light:
1. Set up daylight threshold: If the ambient light is higher than the set brightness, the sensing function will not be triggered.
2. Set up the hold time: The time for the light to maintain brightness after the person walks away.
3. Set up a stand-by dim level: set the brightness maintained after the person walks
4. Set up stand-by time: After the person walks, the time to maintain low brightness
5. Set up detection area: Set the detection area.
Toggle button can set the remote distance of remote control and sensor.
If you need sensor lights in factories or warehouses, corridors, or other indoors, you can choose this LED Sensor batten lights. If you need IP66 sensor light, you can choose Sensor Waterproof Light.
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