Determination of active site densities and mechanisms for soot combustion with O2 on Fe-doped CeO2 mixed oxides

2010 ◽  
Vol 276 (1) ◽  
pp. 16-23 ◽  
Author(s):  
Zhaoliang Zhang ◽  
Dong Han ◽  
Shaojie Wei ◽  
Yexin Zhang
Keyword(s):  
Active Site ◽  
Mixed Oxides ◽  
Soot Combustion ◽  
Doped Ceo2

Quantification of the active site density and turnover frequency for soot combustion with O2 on Cr doped CeO2

2011 ◽  
Vol 175 (1) ◽  
pp. 112-116 ◽  
Author(s):  
Xin Li ◽  
Shaojie Wei ◽  
Zhaoliang Zhang ◽  
Yexin Zhang ◽  
Zhongpeng Wang ◽  
...  
Keyword(s):  
Active Site ◽  
Turnover Frequency ◽  
Soot Combustion ◽  
Site Density ◽  
Doped Ceo2

Determination of Intermediates and Mechanism for Soot Combustion with NOx/O2on Potassium-Supported Mg−Al Hydrotalcite Mixed Oxides by In Situ FTIR

2010 ◽  
Vol 44 (21) ◽  
pp. 8254-8258 ◽  
Author(s):  
Zhaoliang Zhang ◽  
Yexin Zhang ◽  
Qingyun Su ◽  
Zhongpeng Wang ◽  
Qian Li ◽  
...  
Keyword(s):  
Mixed Oxides ◽  
In Situ Ftir ◽  
Soot Combustion

Statistical Description of Isotope Exchange Processes: A Multisite Model for the 18O Exchange

1982 ◽  
Vol 37 (11-12) ◽  
pp. 1161-1169 ◽  
Author(s):  
Paul Rösch
Keyword(s):  
Active Site ◽  
Isotope Exchange ◽  
Analytical Procedure ◽  
Matrix Formalism ◽  
Model Calculations ◽  
Exchange Processes ◽  
Reaction Solution ◽  
Different Types ◽  
Refinement Procedure

Abstract An analytical procedure has been developed for the determination of isotope exchange processes as exemplified by the 18O exchange catalysed by enzyme-nucleotide complexes. The model is able to handle more than one type of active site per reaction solution and is also able to distinguish between different types of inequivalence of the oxygens of enzyme bound Pi. Use of transition matrix formalism and basic statistical considerations lead directly to the simple model. A data refinement procedure is introduced and model calculations are shown.

Nonlinear Vibrations in a 2-Dimensional Protein Cluster Model with Linear Bonds

2000 ◽  
Vol 214 (1) ◽  
Author(s):  
E.G. Shidlovskaya ◽  
L. Schimansky-Geier ◽  
Yu.M. Romanovsky
Keyword(s):  
Active Site ◽  
Internal Resonance ◽  
Cluster Model ◽  
Active Sites ◽  
Nonlinear Vibrations ◽  
Nonlinear Phenomena ◽  
Two Dimensional ◽  
Dimensional Model ◽  
Two Dimensional Model

A two dimensional model for the substrate inside a pocket of an active site of an enzyme is presented and investigated as a vibrational system. The parameters of the system are evaluated for α-chymotrypsin. In the case of internal resonance it is analytically and numerically shown that the energy concentrated on a certain degree of freedom might be several times larger than in the non-resonant case. Additionally, the system is driven by harmonic excitations and again energy due to nonlinear phenomena is redistributed inhomogeneously. These results may be of importance for the determination of the rates of catalytic events of substrates bound in pockets of active sites.

Lanthanum-promoted copper-based hydrotalcites derived mixed oxides for NOx adsorption, soot combustion and simultaneous NOx-soot removal

2014 ◽  
Vol 51 ◽  
pp. 119-127 ◽  
Author(s):  
Zhongpeng Wang ◽  
Xiaotong Yan ◽  
Xinlin Bi ◽  
Liguo Wang ◽  
Zhaoliang Zhang ◽  
...  
Keyword(s):  
Mixed Oxides ◽  
Soot Combustion ◽  
Nox Adsorption

Potentiometric determination of ionizations at the active site of papain

Biochemistry ◽  
1976 ◽  
Vol 15 (23) ◽  
pp. 5009-5017 ◽  
Author(s):  
Sidney D. Lewis ◽  
Frederick A. Johnson ◽  
Jules A. Shafer
Keyword(s):  
Active Site ◽  
Potentiometric Determination

scholarly journals Determination of the relative concentrations of rare earth ions by x-ray absorption spectroscopy: Application to terbium mixed oxides

1986 ◽  
Vol 47 (4) ◽  
pp. 413-416 ◽  
Author(s):  
G. van der Laan ◽  
J.C. fuggle ◽  
M.P. van Dijk ◽  
A.J. Burggraaf ◽  
J.-M. Esteva ◽  
...  
Keyword(s):  
Rare Earth ◽  
Absorption Spectroscopy ◽  
Mixed Oxides ◽  
Rare Earth Ions ◽  
X Ray ◽  
X Ray Absorption
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