In 1831, Phillips(England) proposed the method of producing sulfuric acid with platinum as catalyst. It was industrialized by 1875, which is the earliest industrial application of noble metal catalysts. Since then, the industrialization of noble metal catalysts has been emerging.
In 1913, platinum catalyst for ammonia to produce nitric acid oxidation;
In1937,Ag/Al2O3 catalyst for ethylene oxide;
In 1949, the Pt/Al2O3 catalyst in the production of high quality petroleum reforming gasoline;
In 1959, the PdCl2-CuCl2 catalyst for ethylene oxidation to acetaldehyde;
In the end of 1960s, again using rhodium complex catalysts of methanol carbonylation acetic acid. Since 1974, noble metal catalysts (mainly platinum and palladium and rhodium) have been widely used in the exhaust purification of automobiles. They have been rapidly developed into the largest amount of noble metal catalysts. The development and utilization of noble metal catalysts have been developing for more than one hundred years (1875~1994 years), and their development has been flourishing. New varieties, new methods of preparation and new applications have been emerging, and the basic theories have been constantly improved.
With the continuous progress of science and technology, noble metal catalysts will continue to play an important role in some new fields. Of course, due to the scarcity of precious metals and expensive prices, people are also researching and developing non noble metals or low content noble metal catalysts.
Common noble metal catalysts