Hydrogenated Fe doped amorphous carbon is synthesized via mechanically alloying. XANES analysis suggests that Fe is considered to bond with either C or H atom where the first principle calculations reveals that two types of H-C bonding is confirmed. Weak H-C bond is observed near Fe atom while strong H-C bond is seen far from Fe atom. Electronic structure discovered that weak H-C bonding is induced by Fe atoms where Fe form ionic like bond with surrounding C, resulting in the weak H-C interaction. Thus, two different types of H-C bonding is confirmed within Fe doped amorphous carbon. (C) 2017 Elsevier B.V. All rights reserved.