The catalytic synthesis of hydrocarbons from H2CO mixtures over the Group VIII metals: V. The catalytic behavior of silica-supported metals

The catalytic behavior of silica-supported Group VIII metals in the COH2 synthesis reaction has been determined and compared to that of alumina-supported metals. A wider range of specific activities is observed over the silicasupported metals when based upon either adsorbed CO or adsorbed hydrogen to determine metal surface sites. Inclusion of a CuSiO2 catalyst has established the left-hand portion of the volcano plot that was predicted from an earlier study. The most recent values for CO heats of adsorption on these metal surfaces were utilized to obtain this volcano plot and verify the correlation between activity and ΔH(ad) observed earlier with alumina-supported metals.

[1]  J. Sinfelt.  A simple experimental method for catalytic kinetic studies , 1968 .

[2]  G. Ertl,et al.  Adsorption of CO on a Ni(111) surface , 1974 .

[3]  M. Vannice.  The catalytic synthesis of hydrocarbons from H2CO mixtures over the group VIII metals: III. Metal-support effects with Pt and Pd catalysts , 1975 .

[4]  G. Ertl,et al.  Adsorption of CO on Pd single crystal surfaces , 1974 .

[5]  W. H. Weinberg,et al.  The kinetics of adsorption of CO on group VIII transition metals , 1976 .

[6]  M. Dry,et al.  The correlation between catalyst surface basicity and hydrocarbon selectivity in the Fischer-Tropsch synthesis , 1968 .

[7]  M. Vannice.  The catalytic synthesis of hydrocarbons from H2CO mixtures over the group VIII metals: IV. The kinetic behavior of CO hydrogenation over Ni catalysts , 1976 .

[8]  G. Bond,et al.  The kinetics and mechanism of carbon monoxide hydrogenation over silica-supported ruthenium-copper catalysts , 1976 .

[9]  M. Vannice,et al.  On the slow uptake of hydrogen by platinized carbon , 1970 .

[10]  M. Vannice.  The catalytic synthesis of hydrocarbons from H2CO mixtures over the group VIII metals: I. The specific activities and product distributions of supported metals , 1975 .

[11]  A. Plagge,et al.  Interaction of CO and O2 with Ir(111) surfaces , 1976 .

[12]  M. Vannice,et al.  The catalytic synthesis of hydrocarbons from H2CO mixtures over the group VIII metals: II. The kinetics of the methanation reaction over supported metals , 1975 .

[13]  H. Storch.  The Fischer-Tropsch and related syntheses , 1951 .

[14]  A. G. Piken,et al.  Heterogeneous methanation: initial rate of CO hydrogenation on supported ruthenium and nickel , 1974 .

[15]  G. Ertl,et al.  Theory of carbon monoxide chemisorption on transition metals , 1974 .

[16]  A. G. Piken,et al.  Heterogeneous methanation: Steady-state rate of CO hydrogenation on supported ruthenium, nickel and rhenium , 1975 .