O2− and O1− types of oxygen species on Ni and barium-dosed Ni and Cu surfaces☆
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2018, Applied Catalysis B: EnvironmentalCitation Excerpt :Fig. 9B shows the O 1s XPS spectra of the pure NiO and NiCeOx catalysts prepared using different methods. All the catalysts displayed two peaks at 529 and 531 eV, which were assigned to lattice oxygen (O2−) and surface oxygen (O−), respectively [36,52,53]. The relative intensities of these two peaks for NiO and NiCeOx catalysts are ordered as follows: NiCeOx-4 (0.53) > NiCeOx-CP (0.48) > NiCeOx-CA (0.44) > NiCeOx-Mix (0.42) > NiO (0.36).
Preparation and characterization of Ni-Zr-O nanoparticles and its catalytic behavior for ethane oxidative dehydrogenation
2012, Applied Surface ScienceCitation Excerpt :It might be because higher valence Zr4+ is easier to induce O2− than Ni2+, so the electron density around O2− decreases and subsequently results in the increase of the O1s B.E. In the Ni2p3/2 spectra, all the samples exhibited two resolvable peaks at B.E. of around 853.4 and 855.3 eV, with a shakeup satellite at ∼860.5 eV, which are assigned to Ni2+ and Ni3+ species [34–36]. The Ni2p3/2 binding energy was seen shifting to higher values with increasing Zr content, from 853.9 eV (5%) to 855.4 eV (75%).
Oxidative dehydrogenation of propane over Ni-Mo-Mg-O catalysts
2012, Journal of Natural Gas ChemistryMesoporous nickel oxides as effective catalysts for oxidative dehydrogenation of propane to propene
2010, Applied Catalysis A: General
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Contribution No. 364 from the Solid State and Structural Chemistry Unit.