Zobrazeno 1 - 10
of 28
pro vyhledávání: '"van J Joop Grondelle"'
Autor:
D Danny Schuring, de Am Arthur Jong, van J Joop Grondelle, Jjg Hesen, DP Darek Sobczyk, van Ra Rutger Santen
Publikováno v:
Catalysis Letters. 94:37-43
Evidence for adsorption assisted desorption of 13NH3 in the presence of gas phase ammonia on γ-alumina is presented. Due to lateral interactions with physisorbed ammonia, the adsorption enthalpy of ammonia on γ-alumina was measured to be −11 ± 1
Autor:
van Ra Rutger Santen, de Am Arthur Jong, I.E. Kieft, Peter C. Thüne, DP Darek Sobczyk, van J Joop Grondelle
Publikováno v:
Journal of Catalysis, 225(2), 466-478. Academic Press Inc.
The low-temperature deactivation of a platinum sponge catalyst used for ammonia oxidation was studied with the positron emission profiling technique (PEP). Evidence that irreversibly adsorbed nitrogen species deactivate the catalyst is presented. Two
Publikováno v:
Applied Catalysis B: Environmental. 40:101-110
The low temperature gas phase oxidation of ammonia to nitrogen has been studied over alumina-supported, silica-supported and unsupported silver catalysts. TPD, TPR, TEM, XRD and FT-Raman were used to characterize the different silver catalysts. The r
Autor:
van Ra Rutger Santen, van J Joop Grondelle, de Am Arthur Jong, DP Darek Sobczyk, de Mja Martien Voigt
Publikováno v:
Applied Radiation and Isotopes. 57:201-207
A fast and reproducible production method for pure gaseous [13N]NH3 pulses has been developed. 13N was produced by irradiation of water with 500 nA of 16 MeV protons via the 16O(p,α)13N reaction. A mixture of DeVarda's alloy and NaOH was used to con
Autor:
van Ra Rutger Santen, Ejm Emiel Hensen, Raj René Janssen, van J Joop Grondelle, Barbara Mojet, Pcmm Pieter Magusin, Q Qingjun Zhu
Publikováno v:
Catalysis Letters. 81:205-212
N2O decomposition over Fe/ZSM-5 made by the sublimation method was investigated. Further calcination or steaming treatment (700°C) increased the decomposition rate of N2O. FTIR showed that such treatments lead to the disappearance of Bronsted acid s
Publikováno v:
Journal of Catalysis, 206(2), 295-304. Academic Press Inc.
The hydroisomerization of n -hexane on a number of platinum-loaded acidic zeolites and Mg saponite was studied at atmospheric pressure, hydrogen to n -hexane molar ratios of 14–56, and temperatures of respectively 513–543 K (zeolites) and 583–6
Publikováno v:
Journal of Catalysis, 199(1), 107-114. Academic Press Inc.
Ammonia oxidation reaction pathways on high surface area silver powder have been studied by TPD, temperature programmed reaction FT-Raman, and transient as well as steady-state ammonia oxidation experiments. NO was found to be the main reaction inter
Publikováno v:
Catalysis Today. 61:179-185
The ability of several alumina-supported metal catalysts and transition-metal ion-exchanged zeolite Y catalysts to oxidize ammonia to nitrogen and water at low temperatures (between 200 and 350°C) was tested both at high and low ammonia concentratio
Publikováno v:
Journal of Catalysis, 185(2), 297-306. Academic Press Inc.
The activity of iridium and platinum sponge catalysts was studied in the low temperature gas phase oxidation of ammonia with oxygen. Under the reaction conditions used, iridium was found to be more active and more selective to nitrogen than platinum.
Publikováno v:
Journal of Catalysis, 186(1), 100-109. Academic Press Inc.
TPD, TPR, UV-visible spectroscopy, and high-resolution electron microscopy (HREM) have been used to characterize the state and reactivity of alumina-supported copper-based catalysts for the oxidation of ammonia to nitrogen. The results of HREM and UV