Nickel Catalysts (Heterogeneous)

Christopher R. Sarko

Christopher R. Sarko

University of California, Santa Barbara, CA, USA

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Marcello DiMare

Marcello DiMare

University of California, Santa Barbara, CA, USA

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Miguel Yus

Miguel Yus

Universidad de Alicante, Alicante, Spain

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Francisco Alonso

Francisco Alonso

Universidad de Alicante, Alicante, Spain

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First published: 27 May 2014
Citations: 1

Abstract

rn011sf.001

[7440-02-0] Ni (MW 58.71)

InChI = 1S/Ni

InChIKey = PXHVJJICTQNCMI-UHFFFAOYSA-N

(hydrogenolyses and hydrogenations1)

Physical Data: mp 1453 °C; bp 2730 °C; d 8.908 g cm−3.

Form Supplied in: powder, rod, wire, foil, or pellet; activated nickel is not commercially available and must be prepared prior to use. 75% nickel on graphite is available.

Preparative Methods: activated nickel is prepared mainly by reduction of nickel dichloride with lithium and a catalytic amount of an arene (naphthalene or 4,4′-di-tert-butylbiphenyl) in tetrahydrofuran. Nickel on alumina can be prepared from Ni(NO3)2·6H2O slurried with Alumina and then dried at 120 °C; The catalyst is activated before use by heating at 400 °C for 30 min.2

Handling, Storage, and Precautions: nickel is stable to air, yet care should be taken to avoid moisture when using finely divided nickel catalysts. Nickel is a possible carcinogen. Use in a fume hood.

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