Stabilization of Ni+ by thermal treatment of silica–nickel catalysts
Abstract
Ni+ ions, stabilized on silica following reduction of Ni2+ in hydrogen at 170 °C, have been characterised by e.s.r. spectroscopy and shown to react with carbon monoxide giving carbonyl species; the crystal fields of Ni+ on silica and in the NiCaX zeolite are similar.
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