Content: Strong metal-support interactions : facts and uncertainties / S.J. Tauster --
Information on metal-support interactions from near edge X-ray absorption spectroscopy and multiple scattering calculations / J.A. Horsley and F.W. Lytle --
Chemisorption and catalysis over TiO₂-modified Pt surfaces / D.J. Dwyer, J.L. Robbins, S.D. Cameron, N. Dudash, and J. Hardenbergh --
Effects of TiO₂ surface species on the adsorption and coadsorption of CO and H₂ on Ni : implications for methanation over TiO₂-supported Ni / G.B. Raupp and J.A. Dumesic --
Support effects studied on model supported catalysts / R.A. Demmin, C.S. Ko, and R.J. Gorte --
Evidence for the migration of MnO upon reduction of Ni-MnOx and its effects on CO chemisorption / Y.W. Chung and Y.B. Zhao --
Time dependence of H₂ and O₂ chemisorption on Rh-TiO₂ catalysts / H.F.J. van't Blik, P.H.A. Vriens, and R. Prins --
CO, O₂, and H₂ heats of adsorption on supported Pd / M. Albert Vannice and Pen Chou --
Equilibrium and Kinetic aspects of strong metal-support interactions in Pt-TiO₂ and cobalt-doped Cu-ZnO-Al₂O₃ catalysts / M.S. Spencer --
In situ electron microscopic studies of Ni-TiO₂ interactions / J.A. Dumesic, S.A. Stevenson, J.J. Chludzinski, R.D. Sherwood, and R.T.K. Baker --
Presence and possible role of Pt ions in hydrocarbon reactions / M.J.P. Botman, Li-Qin She, Yia-Yu Zhang, T.L.M. Maesen, T.L. Slaghek, and V. Ponec --
Support effect on chemisorption and catalytic properties of noble catalysts / P. Mériaudeau, M. Dufaux, and C. Naccache --
Metal-support interactions in Ni catalysts : a comparative study of kinetic and magnetic behavior between Nb₂O₅ and phosphate supports / E.I. Ko, J.E. Lester, and G. Marcelin --
Intermetallic compounds as models for materials formed at the metal crystallite-oxide support interface / Ralph G. Nuzzo and Lawrence H. Dubois --
Effect of H₂ treatment on the catalytic activity of Pt-SiO₂ catalysts / H. Zuegg and R. Kramer --
Interactions and surface phenomena in supported metal catalysts / E. Ruckenstein --
Effects of reduction temperature on H₂ adsorption by Pt on various supports / Jacek A. Szymura and Sieghard E. Wanke --
Influence of noble metal particles on semiconducting and insulating oxide materials / J. Schwank, A.G. Shastri, and J.Y. Lee --
Evidence of a metal-surface phase oxide interaction for Re on WOx supported on activated carbon / L.L. Murrell, N.C. Dispenziere, Jr., R.T.K. Baker, and J.J. Chludzinski --
Metal-TiO₂ catalysts : electronic effects during H₂ chemisorption, CO-H₂ interactions, and photocatalysis / J.-M. Herrmann --
Spectroscopic and electrochemical study of the state of Pt in Pt-TiO₂ catalysts / M. Spichiger-Ulmann, A. Monnier, M. Koudelka, and J. Augustynski.
Author(s): R. T. K. Baker, S. J. Tauster, and J. A. Dumesic (Eds.)
Series: ACS Symposium Series 298
Publisher: American Chemical Society
Year: 1986
Language: English
Pages: 244
Title Page
......Page 1
Half Title Page
......Page 3
Copyright
......Page 4
ACS Symposium Series......Page 5
FOREWORD......Page 6
PdftkEmptyString......Page 0
PREFACE......Page 7
TiOx Overlayer Formation in Metal/Titania Model Systems......Page 9
THE EFFECT OF TiOx-OVERLAYERS ON ADSORPTION-DESORPTION PROPERTIES......Page 10
PROPERTIES OF HIGH-TEMPERATURE-REDUCED (HTR) METAL/TITANIA CATALYSTS......Page 11
INFLUENCE OF THE METAL/TiOx INTERACTION ON CO-H2 SYNTHESIS PROPERTIES......Page 13
SCOPE OF METAL-SUPPORT INTERACTIONS......Page 15
REFERENCES......Page 16
2 Information on Metal-Support Interactions from Near Edge X-ray Absorption Spectroscopy and Multiple Scattering Calculations......Page 18
Analysis of the L Edge Resonance Lines in Ir Catalysts......Page 19
Analysis of the L Edge Structure in Supported Pt Catalysts......Page 23
References......Page 27
3 Chemisorption and Catalysis over TiO2-Modified Pt Surfaces......Page 29
Direct Evidence for the Migration of Titania......Page 30
Methanation over TiO2 Modified Pt......Page 34
Conclusions......Page 38
Literature Cited......Page 40
4 Effects of TiO2 Surface Species on the Adsorption and Coadsorption of CO and H2 on Ni Implications for Methanation over TiO2-Supported Ni......Page 42
Results and Discussion......Page 43
Conclusions......Page 53
Literature Cited......Page 55
5 Support Effects Studied on Model Supported Catalysts......Page 56
Titania-Covered Pt, Rh, and Pd......Page 57
Niobia - Covered Pt......Page 58
Methanation Rates......Page 59
Acknowledgments......Page 60
Literature Cited......Page 61
6 Evidence for the Migration of MnO upon Reduction of Ni-MnOx and Its Effects on CO Chemisorption......Page 62
Auger Results......Page 63
HREELS Results......Page 64
Literature Cited......Page 67
7 Time Dependence of H2 and O2 Chemisorption on Rh-TiO2 Catalysts......Page 68
Results......Page 70
Discussion......Page 74
Literature Cited......Page 81
8 CO, O2, and H2 Heats of Adsorption on Supported Pd......Page 84
Chemisorption Measurements......Page 85
Calorimetric Measurements......Page 86
Results......Page 87
Discussion......Page 93
Literature Cited......Page 95
9 Equilibrium and Kinetic Aspects of Strong Metal-Support Interactions in Pt-TiO2 and Cobalt-Doped Cu-ZnO-Al2O3 Catalysts......Page 97
Equilibrium States of Platinum Crystallites......Page 98
The Effects of Water on Platinum/Titanium Crystallites......Page 99
Kinetics of the Formation of the SMSI State......Page 100
Validity of the Use of Bulk Properties......Page 101
SMSI Effects in Supported Copper Catalysts......Page 102
Acknowledgments......Page 104
Literature Cited......Page 105
10 In Situ Electron Microscopic Studies of Ni-TiO2 Interactions......Page 107
(b) Interaction of Thin Films of Nickel and Titanium Oxide......Page 109
(a) Carbon Deposition Studies on Nickel-Titanium Oxide......Page 110
(b) Interaction of Thin Films of Nickel and Titanium Oxide......Page 113
Literature Cited......Page 116
11 Presence and Possible Role of Pt Ions in Hydrocarbon Reactions......Page 118
Experimental......Page 119
Results......Page 120
Discussion......Page 121
Literature cited......Page 124
Results and discussion......Page 126
Support effect on the synthesis of methanol over Pt......Page 128
Literature Cited......Page 130
13 Metal-Support Interactions in Ni Catalysts A Comparative Study of Kinetic and Magnetic Behavior Between Nb2O5 and Phosphate Supports......Page 131
EXPERIMENTAL......Page 132
RESULTS......Page 134
DISCUSSION......Page 137
Acknowledgments
......Page 142
Literature Cited......Page 143
14 Intermetallic Compounds as Models for Materials Formed at the Metal Crystallite-Oxide Support Interface......Page 144
Chemisorption Studies......Page 145
Catalytic Activity......Page 146
Surface Oxidation......Page 147
General Observations......Page 150
Literature Cited......Page 151
Experimental......Page 153
Results......Page 154
Discussion......Page 155
Conclusion......Page 158
References......Page 159
16 Interactions and Surface Phenomena in Supported Metal Catalysts
......Page 160
Experimental......Page 162
Discussion......Page 164
Spreading of a Thick Layer......Page 168
Spreading of a Thin Layer......Page 170
Mechanism of Migration of the TiO2 Species......Page 172
Strong Interactions, and the Shape of the Crystallites......Page 173
Catalytic Implications......Page 174
Literature Cited......Page 175
17 Effects of Reduction Temperature on H2 Adsorption by Pt on Various Supports......Page 177
Experimental Methods......Page 178
Results and Discussion......Page 180
Literature Cited......Page 188
18 Influence of Noble Metal Particles on Semiconducting and Insulating Oxide Materials......Page 190
Experimental......Page 191
Results and Discussion......Page 193
References......Page 201
19 Evidence of a Metal-Surface Phase Oxide Interaction for Re on WOx Supported on Activated Carbon......Page 203
References......Page 207
20 Metal-TiO2 Catalysts Electronic Effects During H2 Chemisorption, CO-H2 Interactions, and Photocatalysis......Page 208
Results and Discussion......Page 209
Electrical conductivity study of M/TiO2 catalysts......Page 210
CO + H2 interactions on 5 wt% Pt/TiO2 in the SMSI state......Page 211
Photocatalytic cyclopentane-deuterium isotopic exchange (CDIE)......Page 212
CDIE in contact with Pt/TiO2 catalysts under SMSI conditions......Page 215
Conclusions......Page 217
Literature cited......Page 218
21 Spectroscopic and Electrochemical Study of the State of Pt in Pt-TiO2 Catalysts......Page 220
Experimental......Page 221
Structural studies......Page 222
Electrochemical investigations......Page 228
Conclusions......Page 230
Literature Cited......Page 235
Author Index......Page 236
Β......Page 237
G
......Page 238
M
......Page 239
N
......Page 240
P
......Page 241
R
......Page 242
T
......Page 243
X
......Page 244
