Three-electrode solid-state fuel cell for evaluating working electrodes

High Lithium Ionic Conductivity in the Lithium Halide Hydrates Li3‐n(OHn)Cl (0.83≤n≤2) and Li3‐n(OHn)Br (1≤n≤2) at Ambient Temperatures

“…In other studies, values of approximately 10 À4 W À1 cm À1 are reported for lithium bromide hydrate LiBr ¥ xH 2 O. [16] In this work we present a systematic investigation of the phase transitions and lithium ionic conductivity in the system Li 3-n (OH n )X (0.83 n 2; X Cl,Br) by using differential scanning calorimetry (DSC), impedance spectroscopy and solid-state nuclear magnetic resonance spectroscopy (NMR). Especially solid-state NMR has been shown to be a very powerful tool for the characterization of dynamic processes in solids.…”

Percolation phenomena in controlled drug release matrices studied by dielectric spectroscopy and the alternating ionic current method

“…For such systems the percolation threshold, signifying the conducting component volume fraction at which ion conducting channels spans the entire matrix, in many aspects determines the functionality of the system [1][2][3][4][5][6][7]. In spite of this, percolation studies in the literature analyzing binary mixtures of conducting and non-conducting materials hitherto have focused almost entirely on mixtures containing electron -and not ion -conductors [8][9][10][11][12].…”

Physical studies on composites Ag7I4VO4–Al2O3

“…is a well known technique to increase the ionic conductivity of several modest ionic conductors [1][2][3][4][5][6][7]. A number of models have been proposed to explain this phenomenon [7][8][9][10][11][12][13][14][15][16][17]. Among these models we may mention:…”

“…(i) Model of the formation of a highly conducting space-charge layer along the conductor-insulator interface [7][8][9][10][11];; (ii) model involving a matrix phenomenon which causes an increase in the electrical conduction along the grain boundaries and dislocations [12];; (iii) models based on surface activity [13,14], shape [15] and size [13,16] of insulating phase particles; (iv) homogeneous doping effect of insulating matrix model [12].…”