Negative Ions
Negative ions detection in air using nano field-effect-transistor (nanoFET)
... adsorbed negative ions on the channel as shown in Figure ...detect negative ions in air quantitatively and the concentration could be analyzed by the slope of the channel conductance change ...
6
Analysis of Plasma Distribution near the Extraction Region in Negative Ion Sources with Surface and Volume Produced Negative Ions
... gen negative ion source, it is important to understand the plasma characteristics near the extraction region in order to extract a large amount of hydrogen negative ...positive ions, electrons and ...
6
Dynamics of modulationally unstable ionacoustic wave packets in plasmas with negative ions
... with negative ions can be either compressional or rarefactional depending on the negative ion ...without negative ions solitons are always ...
19
Formation of Negative Ions on the Surface of a Solid Body and Their Influence on the Thermoelectronic and Autoelectronic Emission of Free Electrons
... (10) The surface atoms of the crystal are involved in the thermal electron and field emission, since they contain an excess negative charge of negative ions. For most metals, it was believed that ...
9
Cassini CAPS ELS observations of negative ions in Titan's ionosphere: trends of density with altitude
... of negative ions in Titan ’ s ionosphere. Negative ions are observed during encounters whenever the instrument points in the ram direction at altitudes 950 – 1400 ...heaviest ions ...
6
Bactericidal action of positive and negative ions in air
... that negative air ions may have the potential to control some hospital acquired infections (HAIs) ...'air' ions which has been widely reported is their apparent biocidal ...'air' ions inhibit ...
10
Bactericidal action of positive and negative ions in air
... and negative ions in the presence of ...air ions; (ii) the action of the electric field, and (iii) the action of ozone, two interventions were ...air ions from reaching the microbial ...air ...
10
Doubly-charged negative ions as novel tunable catalysts: graphene and fullerene molecules versus atomic metals
... doubly-charged negative ions as novel tunable mechanism for catalysis, we first present in ...excited negative ion formation, with the ground state binding energies (BEs) yielding the important EAs ...
19
Effects of Hydrogen Negative Ions on Plasma with Magnetic Field Decreasing toward a Wall
... hydrogen negative ion (H − ) produced by the reaction of a vibrationally excited hydrogen molecule and an electron contributes the charge exchange recombi- nation process between the hydrogen positive ion (H + ) ...
5
Effect of negative air ions on the potential for bacterial contamination of plastic medical equipment
... of negative air ...to negative ions produced by a direct current unipoler air ionizer (WM 120, Air Ion Technologies Limited, New Milton, UK) with an electrode potential of -5 ...
12
The Studies on the Surface Organic Modification of Tourmaline Powder with Stearic Acid and Its Composite
... of negative ions released by modified tourmaline increased obviously for both modified tourmaline powders and its composite with PA-66 compared to the unmodified ...
10
A Design Of An Air Ionizer Using The Cockcroft - Walton Voltage Multiplier
... generate negative ion. The air ionizer will produced negative ions in the air for a small room such as the tutorial room in ...the negative ions to the ...generate negative ...
24
Selected ion flow tube studies of some gaseous ion molecule reactions
... applied the SIFT technique to measure the rate coefficients and product ion distributions for the reactions of several negative ions known to atmospheric chemistry 24 ' 35 ... reactions [r] ...
290
chembond.ppt
... When a crystal of an ionic substance is placed in water, the polar water molecules detach the positive and negative ions from the crystal lattice by their el[r] ...
42
Numerical studies of Electrohydrodynamic Flow Induced by Corona and Dielectric Barrier Discharges
... with ions drifting in the electric ...as negative ions, produced in the discharge are absorbed by the anode, and the positive ions left drift towards the ...
131
An investigation of cellulose ion exchangers : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Chemistry at Massey University, New Zealand
... If the matrix carries positive groups the counter ions will be negative, Such an ion exchanger will exchange negative ions and is therefore termed an anion exchanger... In the same way, [r] ...
19
Production of Negative Hydrogen Ions in a High-Powered Helicon Plasma Source
... of negative hydrogen ions within plasma sys- tems has a number of applications, the most prominent of which being the use of negative hydrogen ions in the high energy neutral beam injection ...
325
Chemical Bonding sec. 1
... Metals lose electrons to form positive ions (called cations) and non-metals gain.. electrons to form negative ions (called anions)...[r] ...
35
Time dependent modelling and asymptotic analysis of electrochemical cells
... the negative charge released in this reaction tends to sit on the surface of the ...positive ions, and a dearth of negative ones because (a) negative ions are preferentially absorbed by ...
37
Zumdahl Ch 04 Solutions
... Negative ions associate with the positive end of the water dipole (hydrogen). Ions tend to stay in solution where they can conduct a current rather than re-forming a solid..[r] ...
114