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Nickel boride is the common name of materials composed chiefly of the elements nickel and boron that are widely used as catalysts in organic chemistry. [ 1 ] [ 2 ] Their approximate chemical composition is Ni 2.5 B, [ 3 ] and they are often incorrectly denoted " Ni
Dinickel boride is a chemical compound of nickel and boron with formula Ni 2 B. [1] [2] It is one of the borides of nickel. The formula "Ni 2 B" and the name "nickel boride" are often used for a nickel-boron catalyst obtained by reacting nickel salts with sodium borohydride.
Trinickel boride can be obtained, as grains embedded in a nickel matrix, by heating Brown's P-1 and P-2 "nickel boride"catalyst to 250 °C. This catalyst is produced by reduction of nickel salts with sodium borohydride. [5] Trinickel boride can be obtained also by compressing nickel and boron powders with explosives. [6]
In 1915 he joined the Lookout Oil and Refining Company in Tennessee and was responsible for the installation of electrolytic cells for the production of hydrogen which was used in the hydrogenation of vegetable oils. During that time the industry used a nickel catalyst prepared from nickel(II) oxide. Believing that better catalysts could be ...
organonickel. Organonickel chemistry is a branch of organometallic chemistry that deals with organic compounds featuring nickel-carbon bonds. [1] [2] They are used as a catalyst, as a building block in organic chemistry and in chemical vapor deposition.
Catalysts for the reaction often include group 10 metals such as Raney nickel, [4] [5] [6] palladium black, or platinum dioxide. [1] However, other catalysts, such as cobalt boride, also can be regioselective for primary amine production: R-C≡N + 2 H 2 → R-CH 2 NH 2
Toby Fischer lives in South Dakota, where just 27 doctors are certified to prescribe buprenorphine -- a medication that blunts the symptoms of withdrawal from heroin and opioid painkillers. A Huffington Post analysis of government data found nearly half of all counties in America don't have such a certified physician. So every month, Fischer and his mother drive to Colorado to pick up their ...
The resulting surface contains metal borides, such as iron borides, nickel borides, and cobalt borides, As pure materials, these borides have extremely high hardness and wear resistance. Their favorable properties are manifested even when they are a small fraction of the bulk solid. [ 1 ]