Co-doping

Singh, D.J., 1988, Electronic structure, magnetism and stability of Co-doped NiAl, Phys. Rev. B 46 14392. Vvedensky, D.D., 1992, Theory of X-ray absorption fine structure, in Unoccupied electronic states fundamentals ofXANES, EELS, IPS and BIS, Topics in Applied Physics, Vol. 69, J.C. Euggle and J.E. Inglesfiels, eds. Springer, Berlin. 

The IR and UV spectra of the triplet cycloheptatrienylidene [71] were recorded after the UV photolysis (A>574 nm) of diazocycloheptatriene [72] in an argon matrix (McMahon and Chapman, 1986). This carbene interacts with the CO-doped matrix, forming the ketene [73], and it also dimerizes with formation of heptafulvalene [74]. Experiments have shown that [71] cannot be converted into the cycloheptatetraene [48] either photochemically... 

Sakatani Y, Nunoshige J, Ando H, Okusako K, Koike H, Takata T, Kondo JN, Hara M, Domen K (2003) Photocatalytic decomposition of acetaldhyde under visible light irradiation overLa3+ and N Co-doped Ti02. Chem Lett 32(12) 1156-1157... 

Sometimes there is a significant difference in bulk and surface doping, as reported in the case of B and V co-doping, where improvement in the degradation of methylene blue was observed only when V was present at the surface of the photocatalyst [69]. 

Zhang, X. and Liu, Q. (2008) Visible-light-induced degradation of formaldehyde over titania photocatalyst co-doped with nitrogen and nickel. Applied Surface Science, 254 (15), 4780-4785. 

Li, Y., Ma, G., Peng, S., Lu, G., and Li, S. (2008) Boron and nitrogen co-doped titania with enhanced visible-light photocatalytic activity for hydrogen evolution. Applied Surface Science,... 

Sasikala, R., Shirole, A.R., Sudarsan, V. Jagannath Sudakar, C., Naik, R., Rao, R., and Bharadwaj, S.R. (2010) Enhanced photocatalytic activity of indium and nitrogen co-doped Ti02-Pd... 

The light-emission characteristics of a white-light-emitting EL device with a doubly doped ZnS Pr,Ce,F phosphor layer have been described. It was observed that optimization of the co-doping of Ce enhances the emission characteristics compared to an EL device with a singly doped ZnS Pr,F layer.22 An electrical characterization of Ce-doped ZnS TbOF EL thin films has been reported Ce doping was seen to improve the radiative emission efficiency leading to improved performance of Ce co-doped film.23... 

The second argument offered in [359] was based on the observation of 71Ga / j 1 rates at different temperatures that were faster than those calculated assuming Korringa relaxation as the only mechanism. However, this observation cannot be used to exclude the presence of Korringa relaxation, since additional mechanisms can always contribute additively to relaxation rates. Indeed, exactly such behavior has been observed for 71Ga MAS-NMR of h-GaN co-doped with Ge and Mn, where... 

Mori M and Sammes NM. Sintering and thermal expansion characterization of Al-doped and Co-doped lanthanum strontium chromites synthesized by the Pechini method. Solid State Ionics 2002 146 301-312. 

Enhanced rate of photodegradation observed with the use of new and efficient photocatalyst such as [Ru(bpy)3] " /Ti02 co-doped Zeolite Y may pave the way for development of large-scale advanced oxidation processes for other pollutant system. 

In the 1990s a breakthrough was achieved in the development of long-lived afterglow phosphors. It was discovered that by co-doping rare earth aluminates, especially strontium, with europium and dysprosium gave phosphors with around ten times the afterglow of copper activated zinc sulfide and also with ten times the... 

Luminescence of Eu has not been detected in natural samples yet, but is well studied in artificially activated Zr02 (Gutzov et al. 1998 Gedanken et al. 2000 Reisfeld et al. 2000). The main emission occurs between the Dq level to the Fj multiplet with a decay time of approximately 0.5 ms (Eig. 5.13). The luminescence intensity is relatively weak, but may b e substantially increased by co-doping with nanoparticles of semiconductors, such as CdS. The origin of the... 

A more detailed analysis of the possible oxygen configurations in Ba2YCu3 yMyOx has been made for M = Fe (57)(62), and the conclusions obtained for this case have been extended also to the Co-doped material. The values x = 7.13 and x = 7.15 of the samples... 

A typical commercial hydrodesulfurization catalyst might contain 14% Mo03 and 3% CoO, on an alumina support. The oxides are converted to Co-doped MoS2 by exposure to H2S/H2 under carefully controlled conditions of temperature and partial pressures. 

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