Yazar "Afsin, B" için listeleme
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Firmly adsorbed ammonia and pyridine species at activated kaolinite surfaces
Acid activation increases the protonated species on a kaolinite surface at the expense of coordinately bound NH(3) entities. The presence of NH(4)(-) ions on an activated sample is not proof of the presence of protonic ... -
Formation of An Oxychloride Overlayer At A Bi(0001) Surface
Afsin, B; Roberts, Mw (Taylor & Francis Inc, 1994)A facile oxygen-induced chemisorptive replacement reaction occurs when a Bi(0001)-O overlayer is exposed to hydrogen chloride at 298K. The overlayer, which conforms to the stoichiometry BiOCl2, is stable in contrast to ... -
Phenanthroline Cu(II)-bentonite composite characterization
Tabak, A; Afsin, B; Aygun, SF; Icbudak, H (Springer, 2005)The penetration of the phenanthroline ligand into the interlayer space of the Cu-bentonite results in the formation of Cu(Phen)(3)-bentonite composite. The expansion of the d(001), basal spacing of the Cu-Bent from 14.24 ... -
Reaction Pathways in the Oxydehydrogenation of Ammonia At Cu(110) Surfaces
Afsin, B; Davies, Pr; Pashusky, A; Roberts, Mw; Vincent, D (Elsevier Science Bv, 1993)The activation of ammonia by oxygen at Cu(110) has been investigated by X-ray photoelectron and electron energy loss spectroscopies. The chemistry observed is dependent on the temperature, whether oxygen is preadsorbed and ... -
Stability of hydroxy-formate species at a Pb(110) surface
Afsin, B; Gokdere, M; Tinkilic, N (Pergamon-Elsevier Science Ltd, 2000)Chemisorbed surface hydroxy-formate species on Pb(110), formed by reacting gaseous HCOOH with pre-adsorbed atomic oxygen, yields O(1s) and C(1s) photoelectron peaks at 531.3 and 288.3 eV, respectively. The three desorption ... -
Weakly chemisorbed ammonia species at a Cu(110) surface
Non-dissociative adsorption of ammonia on a Cu(110) surface leads to the formation of two distinct entities between 80 and 298K. A single XP N(ls) peak at 401 eV and the VEEL spectra characterize the alpha ammonia species ...
