The significant increase in the need for vitamin B12 is due to the increase in the number of people following a vegan or vegetarian diet. Since plants do not naturally produce vitamin B12, vegans a...
Recently, Professor Kong Lingtao's research group from the Hefei Institute of Physics, Chinese Academy of Sciences has prepared a hollow amorphous Co/C composite material for activating hydrogen pe...
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The recent epidemic situation in India has been severe, the supply of raw materials has been restricted, and the mint market has increased attention. Factories focus on digesting inventory, and som...