The nuclear resonance photon scattering (NRPS) cross section σsfrom15N in the form of NO adsorbed on activated carbon fibre (ACF) was studied as a function of temperature in the range 15 K – 300 K. The value of σswas found to be much higher than that from a pure NO sample. The increase in σsamounted to about 14 per cent at 297 K and 45 per cent at 15 K, and is explained by the effect of the strong binding NO-ACF potential and in terms of the dimerization of adsorbed NO on ACF. The magnitude and the behaviour of the scattering cross section may probably be used as an indicator of the occurence of chemical adsorption. The average zero-point energy of the binding potentials are deduced using a simple model.