Rhodium: Earth's Rarest and Most Expensive Precious Metal
Discovered in the early 1800s from a chunk of smuggled platinum ore, rhodium is the most valuable precious metal on the ...
Royal Society of Chemistry5 年
Chemistry in its element: rhodium
Our rhodium chloride was to be used as starting material for new rhodium compounds that we planned to make and study as catalysts - species that make a reaction go faster without being consumed in the ...
来自MSN21 天
Rice develops new catalyst that uses light, not heat, to produce green hydrogen
The new catalyst system utilizes copper nanoparticles as its energy-harvesting antennas. Since the plasmonic surface of the copper nanoparticles does not bond well with methane, rhodium atoms and ...
Kellogg School of Management6 年
What is Catalysis?
Catalysts take many forms. Some are porous solids, such as the platinum, rhodium and palladium meshes that remove nitrogen oxide from automobile exhaust. Others are protein molecules, called enzymes, ...
Autoblog17 年
My precious: Nissan's new cat cuts down on expensive metals
The catalyst or catalytic converter is a piece of the exhaust system filled with a mix of platinum, rhodium and palladium that captures harmful toxins in a car's exhaust such as nitrogen oxide ...
BBC4 年
Controlling the rate Catalysts
Some examples of catalysts used in industry are: Iron – used to make ammonia by the Haber Process Platinum – used in manufacture of nitric acid (Ostwald process) Rhodium and Platinum - in ...