Showing papers in "Solid State Ionics in 1988"

TL;DR: In this article, the electrochemical behavior of graphite has been studied using the PEO-based electrolyte, which avoids solvent co-intercalation in the electrode material and to a certain extent reactivity problems due to residual impurities in organic electrolytes.

TL;DR: In this article, straight-forward methods based on dc techniques are described which permit reliable evaluation of both the total conductivity and transference numbers of binary polymer electrolytes, and measurements are presented for PEOLiCF 3 SO 3 (9:1) electrolyte as a function of temperature.

TL;DR: In this article, the structure of Bi 4 V 2 O 11 consists of Bi 2 O 2 2 layers interleaved with V O 7 sheets and differentially thermal analysis showed three reversible phase transitions at 720, 840 and 1150 K.

TL;DR: In this article, Li and NaTi 2 (PO 4 ) 3 were intercalated in the NASICON framework and the electrochemical results showed the reversibility of the process and the existence of large biphased domains in both systems.

TL;DR: In this paper, the modification of solid electrolytes of PEONaI type was performed by adding NASICON powder to them and polymer like thin and flexible foils were prepared and their conductivity was significantly improved in comparison to pristine PEO-Nal samples.

TL;DR: In this paper, the insertion of Li into the three titanium dioxide modifications, anatase, rutile, and TiO2(B), was studied primarily by electrochemical techniques.

TL;DR: In this article, the frequency-dependent (ac) conductivity behavior of ionically conducting glasses is discussed and a critique is given of the treatment of Almond and West for this behaviour.

TL;DR: In this paper, the synthesis, characterization and potential uses of layered double hydroxides (LDHs) are discussed, and experiments in our laboratory concerning the pillaring of LDHs with hexacyanoferrate and other anion complexes of iron are reported.

TL;DR: In this article, the Li + transport number of two types of polymer electrolytes have been estimated by means of the combination of the complex impedance and potentiostatic polarization measurements.

TL;DR: In this article, the conduction properties of these oxides and their applications to a high temperature fuel cell and a steam electrolyzer for hydrogen production are described referring to the experimental results obtained in their laboratory.

TL;DR: In this paper, electrical conductivity measurements were made on Gd 2 (Zr 0.3 Ti 0.7 ) 2 O 7 as a function of temperature, oxygen fugacity and aliovalent dopant concentration using Ca and Ta.

TL;DR: In this article, preliminary results for the conversion of CH 4 to C 2 H 6 are described using Bi 2 O 3 Pr 6 O 11 anodes and other oxide anodes can be used in a CER to promote partial oxidation reactions.

TL;DR: In this paper, the authors evaluated EMF method studies of conductivity contributions from native and foreign ions in oxides, expressed in terms of transport numbers and activity gradients, and described a gas line for composing atmospheres for studying native, Hydrogen, carbon, and nitrogen ions in this respect.

TL;DR: In this article, the distribution and thermal vibration of the mobile cations have been studied for α -Cu 2− x S (200°C), α-Cu 2 − x Se (160, 210, and 360°C) and α -Ag 2 Se (135, 150, 200, and 300°C).

TL;DR: In this article, the temperature dependence of the conductivity of the phosphorus spin-lattice relaxation rate is shown to be governed by the segmental chain motion, and the long-range diffusion coefficient of the molecule (measured by the pulsed field gradient NMR technique) is quite close to the short-range fraction of the chain segments determined from NQES.

TL;DR: In this paper, the Tian-Calvet microcalorimeter was used to determine the heat of interaction of water vapor with a range of oxides at 303 K. The change from hydrophilic to hydrophobic behavior in oxides is correlated with the gradation from ionic to covalent bonding.

TL;DR: In this article, the number of mobile ionic species in some proton conductors and their mobility was evaluated by using a transient ionic current measurement technique, which was used on the Proton Conductors of N 2 H 6 SO 4, N 2H 6 Cl 2, (NH 4 ) 10 W 12 O 41 ·5H 2 O and MoO 3 ·2H 2O.

TL;DR: In this paper, Raman scattering measurements have been carried out on poly(propylene glycol) (PPG) complexed with NaCF3SO3 salt of monomer unit versus salt concentration in the range O:M=30:1−5:1.

TL;DR: In this article, mixed phase electrolytes consisting of mixtures of Li3N and LiCF3SO3 containing PEO have been constructed in an attempt to combine some of the advantages of crystalline and polymeric ionic conductors.

TL;DR: In this paper, single crystals of H3PW12O40·28H2O, H4SiW 12O40•28H 2O and H3pW12W40·21H 2 O have been prepared and the diffusion coefficients and conductivities have been determined for pure protonic as for partially deuterated samples.

TL;DR: In this article, modifications to the PVA/H3PO4 proton conducting polymer blend were made to improve stability and performance of the polymer electrolyte-based hydrogen sensor developed for on-line analysis.

TL;DR: In this paper, a simple model of the hopping motion of individual mobile charged defects is proposed to explain the universal dynamic response in solid ionic conductors, including the well-known arcs in the complex planes of conductivity and permittivity, the power-law frequency dependence of the ionicity, as well as the non-BPP-type behavior of spin-lattice relaxation times and the broad components of quasielastic neutron scattering spectra.

TL;DR: In this article, layered phosphonate salts of divalent metal ions (Mg, Ca and Mn) are prepared by combining solutions of soluble metal salts and alkyl- or arylphosphonic acids.

TL;DR: In this paper, the authors discuss the state-of-the-art of solid electrochemically reversible, five-layer smart window TM glass, which can be reversibly modulated by an electrical current pulse; the modulation is spectrally selective.

TL;DR: In this article, a new cluster-bypass model is described for ion migration in glass, which provides a rationale for mixed-mobile-ion (mixedalkali) effects, and the existence of defects in glass.

TL;DR: In this article, a mixed organic-inorganic electrolyte was made through the reaction of a polyol (glycerol) and a carboxylic acid (acetic acid) onto an alkoxide (Ti ( OBu n ) 4 ).

TL;DR: In this paper, the authors studied the capacity of three vanadium oxides with regard to their use as cathode materials in solid-state sodium batteries, and the stoichiometric energy densities calculated from the first discharges were 245, 340, and 430 Wh/kg.

TL;DR: In this article, the bulk protonic conductivity of SrCeO 3 and BaCoO 3 ceramics, each doped with 5% Yb 3+ and treated in water vapor, was measured in the temperature range 25-250°C.

TL;DR: In this article, the performance of polypyrrole as an active electrode material was discussed and discussed, and it was shown that polypryl compounds can be used as active electrodes for energy storage.

TL;DR: In this article, solid state rechargeable polymer electrolyte batteries utilizing lithium anodes and V6O13 composite cathodes were investigated at 100°C and over a hundred cycles were obtained at the C/5 rate (45% depth of discharge) with greater than 75% of the initial capacity of V6 O13 being maintained at cycle number one hundred.