The adsorption of nitrogen by tantalum occurs with a maximum sticking probability of 0.22, which is independent of pressure and temperature between 4 × 10–8 and 4 × 10–7 torr and between 296 and 530°K. At temperatures above 900°K rapid absorption occurs. The efficiency of tantalum as a catalyst for the isotope exchange reaction 28N2+30N2= 2 29N2 increases with increase in temperature and in uptake of nitrogen.
R. P. H. Gasser, C. P. Lawrence and D. G. Newman, Trans. Faraday Soc., 1966, 62, 2916 DOI: 10.1039/TF9666202916
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