在科研中问出更多的What if---读William Evans的“A Rare-Earth Metal Retrospective to Stimulate All Fields”有感 著名金属有机化学家William Evans在JACS最近写了一篇非常有意思的perspective,读完后让我深有感触。 https://pubs.acs.org/doi/10.1021/jacs.1c08288pubs.acs.org/doi/10.1021/jacs.1c08288...
they’re not as rare as their name suggests. They’re found in abundance across the world with the most concentrations found in China who is the leading producer of REMs. Millions of years ago, they formed in the earth’s mantle and have been pushed to the earth’s crust due to tectoni...
China currently controls production but the country only has 37 percent of the world’s estimated reserves. This second visual published by theNY Timesshows the identified rare earth metal deposits around the globe. The U.S. used to be a top manufacturer of rare earth metals back in the 1960...
Copper is an example of what type of metal? What are the rare earth metals on the periodic table? What is between metals and nonmetals on the periodic table? What are some physical properties of a malleable metal? What is the density of pyrite?
Originally developed in the late 1970s, rare-earth magnets are powerful magnets made of rare-earth metal alloys (hence the name). Standard magnets are typically made of nickel, iron or ceramic, which produces a moderately strong magnetic field. But rare-earth magnets, on the other hand, are...
whoisamagazineeditorandDorothyWoodruff?s granddaughter. Whydidtheygothen? Well,theywantedto dosomethinguseful.Soon,however,theyrealizedwhattheyhadundertaken. Theymovedinwithalocalfamily,theHarrisons,and,likethem,hadlittleprivacy,rare baths,andablanketofsnowontheirquiltwhen theywokeupinthe morning.Some mornin...
Rhodium: The Most Valuable Metal Extremely rare in nature, highly desired in the automotive industry, and likely to be required more in the future, rhodium is not only the most valuable metal on Earth but also one that investors should be investing in. ...
what children have to what color is the sky what day is teachers what day is today wha what did he say did y what did they drive a what distant what do i have but ne what do i think of my what do you call a gi what do you eat for b what do you feel when what do you thi...
Metal hydrides are often used in fuel cell applications that use hydrogen as a fuel. Nickel hydrides are often found in various types of batteries, particularly NiMH batteries. Nickel metal hydride batteries rely on hydrides of rare-earth intermetallic compounds, such as lanthanum or neodymium bonded...
rare earth elements. Because they contain such large amounts — and because they are concentrated in stationary wind farms — recycling rare earths from wind turbines is much more feasible than recycling them from products flung far and wide. “There is a much better chance that they have a ...