Search results for "nickel oxide"

showing 2 items of 32 documents

Easy Method for the Transformation of Levulinic Acid into Gamma-Valerolactone Using a Nickel Catalyst Derived from Nanocasted Nickel Oxide

2019

Different nickel catalysts have been tested for the transformation of levulinic acid into &gamma

inorganic chemicalsMaterials scienceHydrogenValerolactonechemistry.chemical_element02 engineering and technology010402 general chemistrylcsh:Technology01 natural sciencesArticleHydrothermal circulationCatalysischemistry.chemical_compoundLevulinic acidNickelotorhinolaryngologic diseasesLevulinic acidheterocyclic compoundsGeneral Materials ScienceNanocastinglcsh:Microscopylcsh:QC120-168.85lcsh:QH201-278.5lcsh:Torganic chemicalsNickel oxideNon-blocking I/O021001 nanoscience & nanotechnology0104 chemical sciencesgamma-ValerolactoneNickelHydrothermal reactionChemical engineeringchemistrylcsh:TA1-2040lcsh:Descriptive and experimental mechanicslcsh:Electrical engineering. Electronics. Nuclear engineeringHigh temperature waterlcsh:Engineering (General). Civil engineering (General)0210 nano-technologylcsh:TK1-9971Materials
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One‐magnon Raman scattering in Ni c Mg 1–c O solid solutions

2005

The one-magnon Raman scattering was studied for the first time in antiferromagnetic NicMg1–cO solid solutions as a function of temperature and composition. We found that (i) the one-magnon frequency extrapolated to T = 0 K experiences an abrupt change between c = 0.99 and c = 0.9 and (ii) the one-magnon energy for highly diluted nickel oxide vanishes significantly below the Neel temperature. The obtained dependences are compared to the theoretical predictions within the mean field approximation. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

symbols.namesakeCondensed matter physicsMean field theoryChemistryNickel oxideMagnonsymbolsAntiferromagnetismCondensed Matter::Strongly Correlated ElectronsNéel temperatureRaman scatteringSolid solutionphysica status solidi (c)
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