With the evolution of oxygenic phototrophs, molecular O2 became the major electron acceptor on Earth [12]. Other electron acceptors exist; for example nitrate, which has an oxidative potential that is similar to that of O2 through the process of denitrification [12]. Both aerobic respiration and...
Give the orbital diagram for an atom of Co. What is the electron configuration for the carbon atom? Give the orbital diagram for an atom of Cl. What is the electron arrangement and electron configuration of Fe^{3+}? What is the electron configuration for the phosphorus atom? a) 1 s 2...
The oxygen interstitial (Oi) is believed to be a compensating acceptor in electron-irradiated ZnO [38]. A room-temperature PL peak at 2.18 eV was attributed to a transition involving the oxygen interstitial [53]. From theory, the most stable sites are the split configuration, where two oxygen...
The crystal structure of curite, of which until now only the arrangement of the U and Pb atoms was known, has been redetermined with a synthetic crystal using three-dimensional X-ray techniques. R =0.043 for 1270 observed reflections. Cu... K Mereiter - 《Tschermaks Mineralogische Und Pe...
PC and PEC processes primarily depend on the efficiency of photogenerated charge transfer and the degree of separation of the electron-hole recombination. Specifically, the kinetics of photoinduced charge transfer (\(k\)) from the valence band to the conduction band must be much higher than the ...
A main difference between oxygen and Sr-doped cobaltate systems is the collinear spin arrangement due to an easy axis anisotropy in the oxygen doped material with a crystal structure that hampers a spiralling of the spins within the Co oxygen planes and, thus, supports the development of commens...
Lithium-rich layered oxides have emerged as a new model for designing the next generation of cathode materials for batteries to assist the transition to a greener energy system. The unique oxygen redox mechanism of such cathodes enables extra energy stor
Fluorescence quenching of N,N-bis(2,5-di-tert- butylphenyl)-3,4:9,10-perylenebis(dicarboximide) (DBPI) by Co2+ ion NN-bis(25-di-tert-butylphenyl)-34:910-perylenebis(dicarboximide)SilvernanoparticlesQuenchingFesemThe interaction of a perylene derivative namely NAbdullah... SA El-Daly 被...
Dissociative ionization in O 2 has been examined by means of a retarding potential lens combined with a quadrupole mass spectrometer. This particular arrangement made possible detailed analysis of the O + ions kinetic energy distribution and the measurement of threshold energies of O + ions with ...
Its removal leads to the loss of the water oxidizing functionality. The S2′ state of the Ca2+-depleted cluster from spinach is examined by X- and Q-band EPR and 55Mn electron nuclear double resonance (ENDOR) spectroscopy. Spectral simulations demonstrate that upon Ca2+ removal, its electronic...