Fig. 2.
Temperature programmed desorption (TPD) profiles recorded via PI-ReTOF-MS for (a) m/z = 78 (PH3-CO2 system, PI = 10.86 eV), (b) m/z = 79 (PH3-13CO2 system, PI = 10.86 eV), (c) m/z = 82 (PH3-C18O2 system, PI = 10.86 eV), (d) m/z = 78 (blank PH3-CO2, PI = 10.86 eV), and (e) m/z = 78 (PH3-CO2 system, PI = 9.60 eV).
