Size-controlled model Co nanoparticle catalysts for CO₂ hydrogenation: synthesis, characterization, and catalytic reactions.

Iablokov, Viacheslav; Beaumont, Simon K; Alayoglu, Selim; Pushkarev, Vladimir V; Specht, Colin; Gao, Jinghua; Alivisatos, A Paul; Kruse, Norbert et al. · Nano Lett · 2012

basic_science · Level V

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Abstract

Model cobalt catalysts for CO(2) hydrogenation were prepared using colloidal chemistry. The turnover frequency at 6 bar and at 200-300 °C increased with cobalt nanoparticle size from 3 to 10 nm. It was demonstrated that near monodisperse nanoparticles in the size range of 3-10 nm could be generated without using trioctylphosphine oxide, a capping ligand that we demonstrate results in phosphorus being present on the metal surface and poisoning catalyst activity in our application.

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