By Thaddeus E., Jr., et al., eds. Whyte
content material: Thermal decomposition of iron pentacarbonyl on titania : genesis of Fe/TiO₂ catalysts / J. Phillips and J.A. Dumesic --
Secondary ion mass spectrometry of the ethylene/Ru(001) interplay / L.L. Lauderback and W.N. Delgass --
X-ray photoelectron spectroscopy of cobalt catalysts : correlation with carbon monoxide hydrogenation actions / D.G. Castner and D.S. Santilli --
adjustments of floor reactivity via established overlayers on metals / Robert J. Madix --
X-ray absorption fantastic constitution, Mössbauer, and reactivity experiences of unsupported cobalt-molybdenum hydrotreating catalysts / Bjerne S. Clausen, Henrik Topsøe, Roberto Candia, and Bruno Lengeler --
Magnetic resonance stories of steel deposition on hydrotreating catalysts and removing with heteropolyacids / B.G. Silbernagel, R.R. Mohan, and G.H. Singhal --
functions of high-resolution ¹³C-NMR and magic-angle spinning NMR to reactions on zeolites and oxides / Eric G. Derouane and Janos B. Nagy --
The function of oxygen ions within the partial oxidation of hydrocarbons : electron-proton resonance and job measurements / Jack H. Lunsford --
the long run and impression of quantum mechanical calculations within the description and characterization of zeolites / Paul G. Mezey --
The training and characterization of aluminum-deficient zeolites / Julius Scherzer --
Aluminum distributions in zeolites / Alan W. Peters --
components affecting the synthesis of pentasil zeolites / Zelimir Gabelica, Eric G. Derouane, and Niels Blom --
mixed actual innovations within the characterization of zeolite ZSM-5 and ZSM-11 acidity and basicity / Jacques C. Vedrine, Aline Auroux, and Gisèle Coudurier --
Structure-selectivity dating in xylene isomerization and selective toluene disproportionation / D.H. Olson and W.O. Haag --
Analytical electron microscopy of heterogeneous catalyst debris / C.E. Lyman --
Single-particle diffraction, weak-beam dark-field, and topographic photographs of small steel debris in supported catalysts / M.J. Yacaman --
using scanning transmission electron microscopes to check surfaces and small debris / J.M. Cowley --
Atomic quantity imaging of supported catalyst debris by means of scanning transmission electron microscope / M.M.J. Treacy --
NMR concepts for learning platinum catalysts / Harold T. Stokes --
Photoacoustic spectroscopy of catalyst surfaces / E.M. Eyring, S.M. Riseman, and F.E. Massoth --
IR photothermal beam deflection spectroscopy of surfaces / M.J.D. Low, C. Morterra, A.G. Severdia, and J.M.D. Tascon --
Tunneling spectroscopy of organometallic molecules / William C. Kaska, Paul okay. Hansma, Atiye Bayman, and Richard Kroeker --
The influence of particle measurement at the reactivity of supported palladium / S. Ichikawa, H. Poppa, and M. Boudart.
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Additional resources for Catalytic Materials: Relationship Between Structure and Reactivity
Furthermore, t h i s suggests that recombination of hydrogen atoms o r i g i n a l l y bonded t o the metal w i t h independentl y emitted carbon o r hydrocarbon-containing ions i s of minor importance. A l l of these r e s u l t s are c o n s i s t e n t w i t h a d i r e c t r e l a t i o n ship between emitted R ^ c J and hydrocarbon-containing secondary ions w i t h hydrocarbon species on the s u r f a c e . The secondary ions are d e r i v e d by i n t a c t emission and/or c a t i o n i z a t i o n and simple fragmentation o f the parent hydrocarbon s p e c i e s .
No i n d i c a t i o n of C 0 3 O 4 was present i n the XPS spectrum of c a l c i n e d C 0 / A I 0 O 3 , but a s m a l l C 0 3 O 4 s i g n a l could be masked by the dominant C o s p e c t r a l f e a t u r e s . Thus, the c r y s t a l l i n e cobalt species i s C 0 A I 0 O 4 and/or some intermediate between C 0 3 O 4 and C o A l 0 ^ w i t h the same c r y s t a l s t r u c t u r e . The two reduction peaks near 500°C and 675°C i n the TPR spectrum could be a s s o c i a t e d w i t h such an i n t e r mediate.
This decrease could be due to the cobalt s i n t e r i n g or d i f f u s i n g i n t o the support, analagous to the C o / T i 0 system. I n order to avoid the l o s s of s i g n a l i n t e n s i t y , we t r e a t e d the C 0 / A I 2 O 3 c a t a l y s t i n 1% H S/H , which allowed the cobalt oxides to react at lower temperatures. 6eV, i n d i c a t i n g cobalt s u l f i d e was formed. Thus on the c a l c i n e d C 0 / A I 2 O 3 there were at l e a s t three cobalt species: one that reduced at 480°C i n H , one that s u l d i f e d at 480°C i n H S/H , and one that d i d not reduce or s u l f i d e at 480°C.