Open AccessElectrochemical properties of La9.33Si6O26(LSO)–La0.8Sr0.2Ga0.8Mg0.2O2.55(LSGM) electrolyte over NiO and La0.1Ca0.9MnO3(LCM) electrodes
Author(s) -
Atiek Rostika Noviyanti,
Yoga Trianzar Malik,
Iman Rahayu,
Diana Rakhmawaty Eddy,
Uji Pratomo
Publication year - 2021
Publication title -
materials research express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 35
ISSN - 2053-1591
DOI - 10.1088/2053-1591/ac3bf9
Subject(s) - non blocking i/o , materials science , electrolyte , electrode , electrochemistry , analytical chemistry (journal) , arrhenius plot , activation energy , chemistry , biochemistry , chromatography , catalysis
The electrochemical properties of La 9.33 Si 6 O 26 (LSO)–La 0.8 Sr 0.2 Ga 0.8 Mg 0.2 O 2.55 (LSGM) electrolyte composites have been evaluated over NiO and La 0.1 Ca 0.9 MnO 3 (LCM) electrodes using symmetric and asymmetrical cells of NiO/LSO–LSGM/NiO and NiO/LSO–LSGM/LCM, respectively. The Nyquist plot obtained from this study suggested that the new electrolyte system exhibits excellent performance over the NiO and LCM electrodes and shows an ideal Randel cell electrical circuit characteristic in both NiO/LSO–LSGM/NiO and NiO/LSO–LSGM/LCM cells. The area-specific resistance (ASR) and, the activation energy (Ea) of NiO/LSO–LSGM/NiO from the Arrhenius plot are lower than the NiO/LSO–LSGM/LCM, which is 0.30 Ω cm −2 and of 0.74 eV vs 0.40 Ω cm −2 with Ea of 0.76 eV, respectively.