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

被引：38

作者：

Silverwood, Ian P. ^{[1
]}

Hamilton, Neil G. ^{[1
]}

McFarlane, Andrew R. ^{[1
]}

Kapitan, Josef ^{[1
]}

Hecht, Lutz ^{[1
]}

Norris, Elizabeth L. ^{[2
]}

Ormerod, R. Mark ^{[2
]}

Frost, Christopher D. ^{[3
]}

Parker, Stewart F. ^{[3
]}

Lennon, David ^{[1
]}

机构：

[1] Univ Glasgow, Sch Chem, Glasgow G12 8QQ, Lanark, Scotland

[2] Univ Keele, Sch Phys & Geog Sci, Keele ST5 5BG, Staffs, England

[3] STFC Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2012年 / 14卷 / 43期

基金：

英国工程与自然科学研究理事会;

关键词：

CARBON-DIOXIDE; NI CATALYSTS; COKE FORMATION; RAMAN-SPECTROSCOPY; SYNTHESIS GAS; STEAM; CH4; ADSORPTION; HYDROGEN; ACTIVATION;

D O I：

10.1039/c2cp42745a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：15214 / 15225

页数：12

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