O2 activation by AuAg clusters on a defective (100)MgO surface

2020 ◽  
Vol 152 (2) ◽  
pp. 024303 ◽  
Author(s):  
F. Buendía ◽  
A. T. Anzaldo ◽  
Carlos Vital ◽  
M. R. Beltrán
Keyword(s):  
O2 Activation ◽  
Mgo Surface

scholarly journals Direct measurement of enthalpy and entropy changes in NH3 promoted O2 activation over Cu‐CHA at low temperature

ChemCatChem ◽  
2021 ◽  
Author(s):  
Xueting Wang ◽  
Lin Chen ◽  
Peter N. R. Vennestrøm ◽  
Ton V. W. Janssens ◽  
Jonas Jansson ◽  
...  
Keyword(s):  
Low Temperature ◽  
Direct Measurement ◽  
O2 Activation ◽  
Entropy Changes ◽  
Enthalpy And Entropy Changes ◽  
Enthalpy And Entropy

Consecutive C–H and O2 Activation at a Pt(II) Center To Produce Pt(IV) Aryls

2018 ◽  
Vol 37 (22) ◽  
pp. 4177-4180 ◽  
Author(s):  
David Watts ◽  
Peter Y. Zavalij ◽  
Andrei N. Vedernikov
Keyword(s):  
O2 Activation

Characterization of Surface Chemical States of a Thick Insulator: Chemical State Imaging on MgO Surface

2005 ◽  
Vol 44 (2) ◽  
pp. 861-864 ◽  
Author(s):  
Yeonjin Yi ◽  
Sangwan Cho ◽  
Myungkeun Noh ◽  
Chung-Nam Whang ◽  
Kwangho Jeong ◽  
...  
Keyword(s):  
Chemical State ◽  
Surface Chemical ◽  
Chemical States ◽  
Mgo Surface

Molecular orbital cluster model study of bonding and vibrations of CO adsorbed on MgO surface

1992 ◽  
Vol 42 (5) ◽  
pp. 1115-1139 ◽  
Author(s):  
Gianfranco Pacchioni ◽  
Giuseppe Cogliandro ◽  
Paul S. Bagus
Keyword(s):  
Molecular Orbital ◽  
Cluster Model ◽  
Model Study ◽  
Mgo Surface

Constructing Pd/Ferroelectric Bi4Ti3O12 Nanoflake Interfaces for O2 Activation and Boosting NO Photo-oxidation

2021 ◽  
pp. 120876
Author(s):  
Qian Zhang ◽  
Yuanyu Shi ◽  
Xianjin Shi ◽  
Tingting Huang ◽  
Shuncheng Lee ◽  
...  
Keyword(s):  
O2 Activation ◽  
Photo Oxidation

The Physiology of Sea-Urchin Spermatozoa

1948 ◽  
Vol 25 (4) ◽  
pp. 344-352
Author(s):  
LORD ROTHSCHILD
Keyword(s):  
Sea Urchin ◽  
Seminal Plasma ◽  
Sea Water ◽  
O2 Activation ◽  
Residual Tension ◽  
K Concentration

1. Echinus esculentus spermatozoa are normally motionless in undiluted semen. They become active when the semen is diluted with sea water or seminal plasma obtained by gentle centrifugation (1500 r.p.m., 12 cm. radius, for 15 min.). 2. A sperm-immobilizing substance can, however, be obtained in seminal plasma by more prolonged centrifugation of semen. 3. Spermatozoa can be made motile in undiluted semen by increasing the O2 tension in the atmosphere surrounding the semen. 4. This O2 activation is completely inhibited by N2; the N2 effect is reversible. 5. Measurements of seminal O2 tension were made with an O2 electrode. The O2 tension of semen is low, being at most 15 mm. Hg. It was not possible to decide whether this residual tension was due to O2 or some other substance reacting at the electrode. 6. The K content of seminal plasma is about 1·55 mg./ml., which is four times higher than that of perivisceral fluid or sea water. 7. The pH of semen is lower than that of sea water, being approx. 7·5. 8. Neither K concentration nor pH is responsible for the inactivity of sperm in semen. 9. A hormone, Androgamone I, is often considered to be responsible for the inactivity of spermatozoa in non-mammalian semen. No support has been found for this view and it is concluded that in E. esculentus semen the spermatozoa are motionless through lack of O2.

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