Separation of ion components produced by plasma-assisted catalytic ionization

Abstract

Formation of negative hydrogen ion: Polarization electron capture and nonthermal shielding J. Chem. Phys. 137, 094310 (2012) Ionization energy of atoms obtained from GW self-energy or from random phase approximation total energies J. Chem. Phys. 136, 194107 (2012) Scattering of nitrogen molecules by silver atoms J. Chem. Phys. 136, 164305 (2012) Rotational excitation of H2O by para-H2 from an adiabatically reduced dimensional potential J. Chem. Phys. 136, 094109 (2012) Additional information on Rev. Sci. Instrum. Positive and negative hydrogen ions are produced by plasma-assisted catalytic ionization using a porous nickel plate, where the irradiation current density and energy of positive ions produced by discharge to the porous plate are controlled. The ion energy distributions are analyzed from the properties of current densities of positive and negative ions extracted from the porous surface. Positive ions passing through fine pores of the porous plate and positive and negative ions produced on the porous surface are observed. It is clarified that the produced fluxes of positive and negative ions and the flux balance between them are controlled by the irradiation current density and energy, respectively.

Hydrogen ions produced by plasma-assisted catalytic ionization using nickel grid

“…Therefore, the electron density is considered to be vanishingly low if electrons would exist. 11,13 IV. SUMMARY Positive and negative hydrogen ions were produced by plasma-assisted catalytic ionization using a nickel grid as the catalyst.…”

“…To overcome this difficulty, we have proposed a plasmaassisted catalytic ionization method for the production of positive and negative hydrogen ions. [9][10][11][12][13] The hydrogen ions are produced from the back of the irradiation plane, when positive ions produced by discharge are irradiated onto a Ni porous catalyst. Some of the irradiated positive ions pass through the fine pores of the porous catalyst.…”

Production of negative hydrogen ions on metal grids

“…It has been revealed that an electric field was directly applied to the metal surface and the extraction current of ions needed to be evaluated. 13 In order to avoid the above problems, grids made of a single metal were used for the production of negative ions, and the production quantity of ions was evaluated by the extraction currents. 14,15 Nickel dissociates hydrogen molecules and chemiadsorb hydrogen atoms, but copper…”

Electrostatic Ion Cyclotron and Ion Plasma Waves in a Symmetric Pair-Ion Plasma Cylinder

“…After the pioneering experimental studies on propagation properties of electrostatic waves in symmetric pair-ion plasmas [1][2][3][4][5] (singly charged positive and negative fullerene ions), there have appeared a number of theoretical works on various linear and nonlinear modes in pair-ion plasmas [6][7][8][9][10][11][12][13][14][15][16][17]. However, basic propagation characteristics observed in the experiments have not been adequately explained yet.…”

“…Since the exact solutions in Eqs. (5) and (6) are unfortunately not directly applicable to integrating Eq. (3) along the orbit (as was the case for Cartesian geometry) we now use the following approximation.…”