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A.D. van Langeveld
Researcher at Delft University of Technology
Publications - 45
Citations - 1345
A.D. van Langeveld is an academic researcher from Delft University of Technology. The author has contributed to research in topics: Catalysis & Auger electron spectroscopy. The author has an hindex of 23, co-authored 45 publications receiving 1294 citations. Previous affiliations of A.D. van Langeveld include Leiden University.
Papers
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Journal ArticleDOI
The role of the active phase of Raney-type Ni catalysts in the selective hydrogenation of d-glucose to d-sorbitol
B.W Hoffer,E Crezee,François Devred,P.R.M Mooijman,W.G. Sloof,Patricia J. Kooyman,A.D. van Langeveld,Freek Kapteijn,Jacob A. Moulijn +8 more
TL;DR: In this paper, the surface properties of homemade Raney-type Ni catalysts and their Ni-Al alloy precursors have been studied and compared with commercial samples, both promoted and unpromoted.
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Carbon supported Ru catalysts as promising alternative for Raney-type Ni in the selective hydrogenation of d-glucose
TL;DR: In this paper, the authors compared the activity, selectivity and stability of Ru/C catalysts in d-glucose hydrogenation with those of the conventional catalysts for this process, viz. Raney-type Ni.
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Characterization of the Active Phase in NiW/γ-Al2O3 Catalysts in Various Stages of Sulfidation with FTIR(NO) and XPS
H.R. Reinhoudt,E Crezee,A.D. van Langeveld,Patricia J. Kooyman,J.A.R. van Veen,Jacob A. Moulijn +5 more
TL;DR: In this article, a detailed picture was obtained of the sulfiding reactions and the species formed, and a reference catalyst was obtained by extraction of Ni from the oxidic catalysts, which is especially interesting since it is possible to study intermediate stages of sulfidation as separate, stable phases.
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Catalysts for second-stage deep hydrodesulfurisation of gas oils
TL;DR: In this article, the suitability of a catalyst for deep HDS of gas oils cannot be evaluated by single-component model studies alone, since the H 2 S concentration and the presence of other competing reactants largely determine the outcome of model experiments.
Journal ArticleDOI
The Evolution of Surface Species in NiW/Al2O3Catalysts in Various Stages of Sulfidation: A Quasiin-SituHigh Resolution Transmission Electron Microscopic Investigation☆
H.R. Reinhoudt,A.D. van Langeveld,Patricia J. Kooyman,R.M. Stockmann,Roel Prins,Hendrik Willem Zandbergen,Jacob A. Moulijn +6 more
TL;DR: In this paper, the effect of the calcination temperature on the evolution of the active phase in NiW/γ-Al2O3catalysts during sulfidation has been studied using high resolution transmission electron microscopy (HREM) and temperature programmed sulfidation (TPS).