About: Nickel boride catalyst

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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. Their approximate chemical composition is Ni2.5B, and they are often incorrectly denoted "Ni2B" in organic chemistry publications. Nickel boride catalysts are typically prepared by reacting a salt of nickel with sodium borohydride. The composition and properties vary depending on the specific preparation method. The two most common forms, described and evaluated in detail by Herbert C. Brown and in 1963, are known as P−1 nickel and P−2 nickel.

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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. Their approximate chemical composition is Ni2.5B, and they are often incorrectly denoted "Ni2B" in organic chemistry publications. Nickel boride catalysts are typically prepared by reacting a salt of nickel with sodium borohydride. The composition and properties vary depending on the specific preparation method. The two most common forms, described and evaluated in detail by Herbert C. Brown and in 1963, are known as P−1 nickel and P−2 nickel. These catalysts are usually obtained as black granules (P−1) or colloidal suspensions (P−2). They are air-stable, non-magnetic and non-pyrophoric, but slowly react with water to form nickel hydroxide Ni(OH)2. They are insoluble in all solvents, but react with concentrated mineral acids. They are claimed to be more effective hydrogenation catalysts than Raney nickel. (en)
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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. Their approximate chemical composition is Ni2.5B, and they are often incorrectly denoted "Ni2B" in organic chemistry publications. Nickel boride catalysts are typically prepared by reacting a salt of nickel with sodium borohydride. The composition and properties vary depending on the specific preparation method. The two most common forms, described and evaluated in detail by Herbert C. Brown and in 1963, are known as P−1 nickel and P−2 nickel. (en)
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  • Nickel boride catalyst (en)
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