P-Type electronic conduction in CeO2- and LaGaO3-based solid electrolytes

Ionics ◽  
2002 ◽  
Vol 8 (3-4) ◽  
pp. 215-222 ◽  
Author(s):  
V. V. Kharton ◽  
A. A. Yaremchenko ◽  
A. P. Viskup ◽  
F. M. Figueiredo ◽  
A. L. Shaulo ◽  
...  
Keyword(s):  
Solid Electrolytes ◽  
Electronic Conduction ◽  
P Type

scholarly journals Understanding metal propagation in solid electrolytes due to mixed ionic-electronic conduction

Matter ◽  
2021 ◽  
Vol 4 (10) ◽  
pp. 3248-3268
Author(s):  
Qingsong Tu ◽  
Tan Shi ◽  
Srinath Chakravarthy ◽  
Gerbrand Ceder
Keyword(s):  
Solid Electrolytes ◽  
Electronic Conduction

Hydration of Rutile TiO2: Thermodynamics and Effects on n- and p-Type Electronic Conduction

2010 ◽  
Vol 114 (19) ◽  
pp. 9139-9145 ◽  
Author(s):  
Skjalg Erdal ◽  
Camilla Kongshaug ◽  
Tor S. Bjørheim ◽  
Niina Jalarvo ◽  
Reidar Haugsrud ◽  
...  
Keyword(s):  
Electronic Conduction ◽  
Rutile Tio2 ◽  
P Type

Design of a p-Type Electrode for Enhancing Electronic Conduction in High-Mn, Li-Rich Oxides

2016 ◽  
Vol 28 (22) ◽  
pp. 8201-8209 ◽  
Author(s):  
Jin-Myoung Lim ◽  
Taesoon Hwang ◽  
Min-Sik Park ◽  
Maenghyo Cho ◽  
Kyeongjae Cho
Keyword(s):  
Electronic Conduction ◽  
P Type

Understanding Metal Deposition in Solid Electrolytes Due to Mixed Ionic-Electronic Conduction

2020 ◽  
Vol MA2020-02 (5) ◽  
pp. 972-972
Author(s):  
Qingsong Tu ◽  
Tan Shi ◽  
Gerbrand Ceder
Keyword(s):  
Solid Electrolytes ◽  
Metal Deposition ◽  
Electronic Conduction

scholarly journals Field-induced p-n transition in yttria-stabilized zirconia

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Marc Jovaní ◽  
Héctor Beltrán-Mir ◽  
Eloísa Cordoncillo ◽  
Anthony R. West
Keyword(s):  
Yttria Stabilized Zirconia ◽  
Electronic Conduction ◽  
Stabilized Zirconia ◽  
Zirconia Ceramics ◽  
Pressure Surface ◽  
Yttria Content ◽  
Electronic Conductivities ◽  
Ion Conducting ◽  
P Type ◽  
Oxide Ion

AbstractOxide ion conducting yttria-stabilised zirconia ceramics show the onset of electronic conduction under a small bias voltage. Compositions with a high yttria content undergo a transition from p-type to n-type behavior at voltages in the range 2.4 to 10 V, which also depends on oxygen partial pressure. Surface reactions have a direct influence on bulk electronic conductivities, with possible implications for voltage-induced flash phenomena and resistive switching.

ELECTRONIC CONDUCTIVITY MEASUREMENTS IN SOLID ELECTROLYTES USING AN ION BLOCKING MICROELECTRODE: NOISE REJECTION BASED ON A MEDIAN FILTER

2013 ◽  
Vol 02 (02) ◽  
pp. 1350009 ◽  
Author(s):  
VEYIS GUNES ◽  
JEAN-YVES BOTQUELEN ◽  
ODILE BOHNKE
Keyword(s):  
Solid Electrolytes ◽  
Ionic Conduction ◽  
Median Filter ◽  
Electronic Conductivity ◽  
Conductivity Measurement ◽  
Heating System ◽  
Electronic Conduction ◽  
Oxygen Ion ◽  
Noise Rejection

In this paper, a method of electronic conductivity measurement is presented. It combines two well known methods of electrochemistry: cyclic voltammetry and chronoamperometry. This DC technique uses the Hebb–Wagner approach to block ionic conduction (when steady state conditions are reached) and allows electronic conduction of solid electrolytes to be determined. In order to get short diffusion times, a micro contact is used as an ion blocking electrode. However, as the electronic conduction in electrolytes is and should be very low, the current is also very low, typically some tens of nanoamps. Thus, the heating system inevitably generates noise problems that are solved using a median filter. As opposed to other related work, our system allows the determination of the conductivities without any preliminary smoothing or fitting of the curves (since the noise is strongly reduced). Some results with oxygen ion conductors are also given.

scholarly journals Understanding Metal Propagation in Solid Electrolytes Due to Mixed Ionic–Electronic Conduction

2021 ◽  
Author(s):  
Qingsong Tu ◽  
Tan Shi ◽  
Srinath Chakravarthy ◽  
Gerbrand Ceder
Keyword(s):  
Solid Electrolytes ◽  
Electronic Conduction

Mixed Ionic-Electronic Conduction in N1 Doped Lanthanum Gallate Perovskites

1997 ◽  
Vol 496 ◽  
Author(s):  
N. J. Long ◽  
H. L. Tuller ◽  
Lower Hurt ◽  
New Zealand
Keyword(s):  
Activation Energy ◽  
Thermal Expansion ◽  
Ionic Conductivity ◽  
Electronic Conductivity ◽  
Lanthanum Gallate ◽  
Electronic Conduction ◽  
Similar Magnitude ◽  
Ac Impedance Spectroscopy ◽  
Dopant Level ◽  
P Type

ABSTRACTLanthanum gallate is a promising material for “monolithic” fuel cells or oxygen pumps, i.e. one in which the electrolyte and electrodes are formed from a common phase. We have investigated La1−xSrxGa1–yNiyO3 (LSGNx-y) with x=0.1 and y=0.2 and 0.5 as a potential cathode material for such an electrochemical device. The σ(PO2,T) for LSGN10–20 points to a p-type electronic conductivity at high PO2 and predominantly ionic conductivity at low PO2. LSGN10–50 has an electronic conductivity suitable for SOFC applications of approximately 50 S/cm in air at high temperature. AC impedance spectroscopy on an electron blocking cell of the form M/LSG/LSGN/LSG/M was used to isolate the ionic conductivity in the LSGN10–20 material. The ionic conductivity was found to have a similar magnitude and activation energy to that of undoped LSG material with σi= 0.12 S/cm at 800°C and EA= 1.0 ± 0.1 eV. Thermal expansion measurements on the LSGN materials were characterized as a function of temperature and dopant level and were found to match that of the electrolyte under opeating conditions.

Impedance analysis of Sr-substituted CePO4 with mixed protonic and p-type electronic conduction

2009 ◽  
Vol 35 (4) ◽  
pp. 1481-1486 ◽  
Author(s):  
Esmeralda Gómez del Moral ◽  
Duncan P. Fagg ◽  
Eva Chinarro ◽  
João C.C. Abrantes ◽  
José Ramón Jurado ◽  
...  
Keyword(s):  
Impedance Analysis ◽  
Electronic Conduction ◽  
P Type
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