Hydrogen Pair-Ion Production by Catalytic Ionization

To develop a hydrogen pair-ion plasma source comprising only hydrogen atomic pair ions, i.e., H+ and H− ions, the efficient production of pair ions is required. When discharged hydrogen plasma is used to irradiate a Ni catalyst, pair ions are produced on the catalyst surface. Hydrogen chemisorption on the catalyst and the electronegativity of the catalyst material are found to affect pair-ion production.