Time-Resolved In Situ MAS NMR Monitoring of the Nucleation and Growth of Zeolite BEA Catalysts under Hydrothermal Conditions

2017 ◽  
Vol 56 (48) ◽  
pp. 15344-15347 ◽  
Author(s):  
Irina I. Ivanova ◽  
Yury G. Kolyagin ◽  
Ivan A. Kasyanov ◽  
Alexander V. Yakimov ◽  
Tatiana O. Bok ◽  
...  
Keyword(s):  
Nucleation And Growth ◽  
Mas Nmr ◽  
Hydrothermal Conditions ◽  
Time Resolved

Time-Resolved In Situ MAS NMR Monitoring of the Nucleation and Growth of Zeolite BEA Catalysts under Hydrothermal Conditions

2017 ◽  
Vol 129 (48) ◽  
pp. 15546-15549 ◽  
Author(s):  
Irina I. Ivanova ◽  
Yury G. Kolyagin ◽  
Ivan A. Kasyanov ◽  
Alexander V. Yakimov ◽  
Tatiana O. Bok ◽  
...  
Keyword(s):  
Nucleation And Growth ◽  
Mas Nmr ◽  
Hydrothermal Conditions ◽  
Time Resolved

scholarly journals In Situ, Time-Resolved, and Mechanistic Studies of Metal–Organic Framework Nucleation and Growth

2018 ◽  
Vol 118 (7) ◽  
pp. 3681-3721 ◽  
Author(s):  
Mary J. Van Vleet ◽  
Tingting Weng ◽  
Xinyi Li ◽  
J.R. Schmidt
Keyword(s):  
Metal Organic Framework ◽  
Nucleation And Growth ◽  
Mechanistic Studies ◽  
Time Resolved ◽  
Metal Organic ◽  
Organic Framework

Fast Nucleation and Growth of ZIF-8 Nanocrystals Monitored by Time-Resolved In Situ Small-Angle and Wide-Angle X-Ray Scattering

2011 ◽  
Vol 123 (35) ◽  
pp. 8217-8221 ◽  
Author(s):  
Janosch Cravillon ◽  
Christian A. Schröder ◽  
Roman Nayuk ◽  
Jeremie Gummel ◽  
Klaus Huber ◽  
...  
Keyword(s):  
Small Angle ◽  
Nucleation And Growth ◽  
Wide Angle ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Study of The Hydrothermal Synthesis of Gallium Phosphates Using in Situ Time-Resolved X-Ray Diffraction

1998 ◽  
Vol 547 ◽  
Author(s):  
R.I. Walton ◽  
T. Loiseau ◽  
R.J. Francis ◽  
D. O'Hare ◽  
G. Férey
Keyword(s):  
Kinetic Data ◽  
Three Dimensional ◽  
Diffraction Method ◽  
Effect Of Temperature ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
Time Resolved ◽  
X Ray ◽  
Phosphorus Source

AbstractThe hydrothermal crystallisation (130-180 °C) of three-dimensional open-framework gallium and aluminium oxyfluoro-phosphates with the ULM-3 and ULM-4 structures have been studied in situ for the first time. The in situ energy-dispersive X-ray diffraction method has allowed the formation of the crystalline products to be observed under hydrothermal conditions The integrated areas of the strongest Bragg reflections has allowed quantitative kinetic data to be extracted. The effect of temperature, phosphorus source, templating agent have been investigated. The nature of phosphorus source in the reaction mixture has been found to affect dramatically the course of reaction for certain combinations of amine and temperature. Previously unobserved transient crystalline phases have been seen during the production of ULM-3 gallium phosphates when P2O5 or polyphosphoric acid are used. The formation of these intermediates affects the kinetics of product growth. In the case of the aluminium ULM-3 materials reaction always proceeds via a crystalline intermediate whatever phosphorus source is used. The ULM-4 framework materials are found to always crystallise directly with no evidence for any intermediates. Kinetic data for each system have been modelled using standard solid-state chemistry expressions, and these calculations indicate the reactions to be diffusion controlled.

Time-Resolved In-Situ Energy and Angular Dispersive X-ray Diffraction Studies of the Formation of the Microporous Gallophosphate ULM-5 under Hydrothermal Conditions

1999 ◽  
Vol 121 (5) ◽  
pp. 1002-1015 ◽  
Author(s):  
Robin J. Francis ◽  
Stephen O'Brien ◽  
Andrew M. Fogg ◽  
P. Shiv Halasyamani ◽  
Dermot O'Hare ◽  
...  
Keyword(s):  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
Time Resolved ◽  
X Ray

Fast Nucleation and Growth of ZIF-8 Nanocrystals Monitored by Time-Resolved In Situ Small-Angle and Wide-Angle X-Ray Scattering

2011 ◽  
Vol 50 (35) ◽  
pp. 8067-8071 ◽  
Author(s):  
Janosch Cravillon ◽  
Christian A. Schröder ◽  
Roman Nayuk ◽  
Jeremie Gummel ◽  
Klaus Huber ◽  
...  
Keyword(s):  
Small Angle ◽  
Nucleation And Growth ◽  
Wide Angle ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering
Sign in / Sign up

Export Citation Format

Share Document