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P.K. de Bokx

Researcher at Utrecht University

Publications -  9
Citations -  688

P.K. de Bokx is an academic researcher from Utrecht University. The author has contributed to research in topics: Catalysis & Nickel. The author has an hindex of 7, co-authored 9 publications receiving 668 citations.

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The formation of filamentous carbon on iron and nickel catalysts : II. Mechanism

TL;DR: In this paper, the mechanism of filamentous carbon growth on iron and nickel catalysts has been studied using a combination of magnetic techniques and temperature-programmed hydrogenation, where CO and CH4 were used as carburizing agents.
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The formation of filamentous carbon on iron and nickel catalysts : I. Thermodynamics

TL;DR: In this article, the thermodynamic properties of filamentous carbon formed from CO and CH4 on iron and nickel catalysts have been determined in the temperature range 650-1000 K. The presence of carbide intermediates has been demonstrated both by magnetic measurements and by temperature-programmed hydrogenation.
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The formation of filamentous carbon on iron and nickel catalysts: III. Morphology

TL;DR: In this paper, the microstructure of primary carbon filaments formed on supported iron and nickel catalysts has been investigated using transmission electron microscopy, dark-field imaging and (selected-area) electron diffraction.
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Interaction of nickel ions with a γ-Al2O3 support during deposition from aqueous solution

TL;DR: In this article, the interaction of nickel ions with a γ-Al 2 O 3 support was studied using potentiometric titration during deposition from aqueous solution and temperature-programmed reduction of calcined samples.
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The interaction of oxygen with Ni(100) and the reduction of the surface oxide by hydrogen

TL;DR: In this article, it was found that the reduction reaction requires hydrogen atoms, adsorbed on exposed nickel atoms, with an activation energy of 23 kcal/mol at temperatures between 150 and 250°C and hydrogen pressures up to 10-5 Torr.