1

Introduction

1

2

Reactivity of CO on vanadium-promoted rhodium catalysts as studied with Transient techniques

11

3.

Transient response study of CO insertion into CH_x surface intermediates on a vanadium Promoted rhodium catalyst

33

4.

The reactivity of surface carbon from carbon monixide on vanadium promoted rhodium catalysts

51

5.

The reaction path for recombination of surface CH_x species

61

6.

Hydrocarbon formation from methane by a low temperature two step reaction Sequence

73

7.

Homologation of olefins with methane on transition metal catalyst

93

8.

General Conclusions

111

Samenvatting

115

Curriculum Vitae

119