Adsorption energies of H and H2: a quantum-chemical studyMilan Sil, Prasanta Gorai, Ankan Das, Dipen Sahu and Sandip K. ChakrabartiEur. Phys. J. D, 71 2 (2017) 45DOI: https://doi.org/10.1140/epjd/e2017-70610-4