Thermal analysis combined with mass spectrometry was applied to radiocarbon
dating procedures (age determination of carbon containing samples) to dete
rmine the optimal temperature range for the reduction of CO2 over metallic
cobalt of various particle sizes. Experiments were carried out to show the
different catalytic activities of cobalt of particle sizes 1, 1-45 and 44 m
um. The morphology of the cobalt samples and the deposited carbon were inve
stigated. The quantification of CH4 and CO formed during the reduction of C
O2 was done by means of pulse thermal analysis.