Application of inelastic neutron scattering to studies of CO2 reforming of methane over alumina-supported nickel and gold-doped nickel catalysts

作者：Silverwood Ian P; Hamilton Neil G; McFarlane Andrew R; Kapitan Josef; Hecht Lutz; Norris Elizabeth L; Ormerod R Mark; Frost Christopher D; Parker Stewart F; Lennon David^*

来源：Physical Chemistry Chemical Physics, 2012, 14(43): 15214-15225.

DOI：10.1039/c2cp42745a

The methane reforming reaction with carbon dioxide as the oxidant over alumina-supported nickel and gold-doped nickel catalysts is studied using a variety of techniques such as reaction testing, vibrational spectroscopy (inelastic neutron scattering (INS), Raman scattering and infrared absorption), temperature-programmed oxidation (TPO), transmission electron microscopy and X-ray powder diffraction. The quantities of retained carbon and hydrogen are determined by TPO and INS, respectively. Minimal hydrogen retention indicates these catalysts to be very efficient at cycling hydrogen. The relative partitioning of hydrogen within the reaction media is used to formulate a qualitative description of the reaction kinetics. The presence of the gold modifier does not appear to provide any improvement in catalyst performance under the specified reaction conditions.

• 出版日期2012