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Nickel is a metallic element that is ferromagnetic, with the ability to attract and hold magnetism. It is found free in nature, but it is also commonly mined from laterite and magmatic sulfide ores. Nickel is a key component of stainless steel and other alloys, and it has numerous industrial applications. Nickel is a soft, silvery-white metal that is highly resistant to corrosion and has good conductivity. It is ductile, malleable, and lustrous, and it has a melting point of about 1100 °C.
nickel phosphide formula is a chemical compound of nickel and phosphorus with the formula (Ni
Here, we report the preparation and application of a cerium dioxide-supported nickel phosphide nanoalloy (nano-Ni2P/CeO2) catalyst for promoting the C-3 alkylation of oxindoles with alcohols via the borrowing hydrogen methodology without the need for additives. The resulting oxindoles are readily cleaved to the corresponding C-3 functionalised products in high yields. Moreover, the nano-Ni2P/CeO2 catalyst is easily recovered and reusable. Furthermore, the EIS results for the as-received and 6 h ball milled Ni2P show that the EIS responses can be fitted to the two time constant parallel (2TP) and series models (2TS). These findings suggest that the corrosion potentials of our materials are controlled by both atomic reorganisation at the surface, as well as the electronic properties of metallic nickel that resist bulk metal dissolution over a considerable potential range.