A comparative study of electrochemical performance of La0.5Ba0.5CoO3−δ and La0.5Ba0.5CoO3−δ–Gd0.1Ce0.9O1.95 cathodes

Pang, Shengli; Jiang, Xuening; Li, Xiangnan; Wang, Qian; Zhi-xian, SU

doi:10.1016/j.ijhydene.2011.09.156

Cited by 38 publications

(34 citation statements)

References 30 publications

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“…Figure 6a also shows the characteristic of the µ-SOFC at different operating temperatures. One large depressed arc is observed at 600 and 650 • C and smaller arcs are observed when temperature is increased to 700, 750 and 800 • C. The HF (>10 3 Hz) arcs correspond to the process of oxygen ionic exchange across the interfaces between the cathode and electrolyte [33]. The MF (10 3 -10 2 Hz) arcs are probably associated with the diffusion of ion electrons at the surface of the cathode [28].…”

Section: Resultsmentioning

confidence: 96%

“…The impedance arising from the gas phase diffusion not only corresponds to the temperature and diffusion coefficient of oxygen in air, but also involves the microstructure of the cathode. Therefore, the addition of GDC 10 into BYCF can enhance the processes of oxygen ions and electrode reactions [33].…”

Section: Resultsmentioning

confidence: 99%

“…is dependent on the temperature, and the areas of the cathode/electrolyte/gas TPB active region [33].…”

Section: Resultsmentioning

confidence: 99%

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A novel micro-solid oxide fuel cell ( $$\upmu $$ μ -SOFC) for detecting methane content in biogas

et al. 2019

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A novel micro-solid oxide fuel cell (µ-SOFC), with a rectangular saw-tooth shape, was designed with a 50 wt% BYCF + 50 wt% GDC 10 cathode and a 60 wt% NiO + 40 wt% GDC 10 anode deposited on a GDC 10 electrolyte substrate by the spray pyrolysis technique. µ-SOFC receives methane only (CH 4) as fuel gas from one side. The fuel gas was applied at a flow rate of 0.2 l min −1. The power density obtained was 1.0 µW at 800 • C. Voltage levels generated by the µ-SOFC at 40-99.99% CH 4 was highly accurate representing the quantity of CH 4. Low accuracy was observed at 10-30% of CH 4. Therefore, µ-SOFC is an application of SOFC technology to be a sensor for economically detecting CH 4 in a biogas system, while being capable of operating in humid conditions at high temperatures.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

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A novel micro-solid oxide fuel cell ( $$\upmu $$ μ -SOFC) for detecting methane content in biogas

et al. 2019

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“…Additionally, the spin configuration of cobalt may vary for this system causing the antiferromagnetic, ferromagnetic and even spin glass behavior . Moreover, high‐temperature electrical properties Ba 0.5 La 0.5 CoO 3 (BLC) have been intensively studied for their potential application as electrode material for intermediate temperature solid oxide fuel cells and electrolyzers (IT‐SOFC/ ‐SOEC) …”

Section: Introductionmentioning

confidence: 99%

Electric and magnetic properties of lanthanum barium cobaltite

et al. 2019

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The cubic Ba0.5La0.5CoO3‐δ was synthesized using solid state reaction. The structural properties were determined by the simultaneous refinement of Synchrotron Powder X‐ray Diffraction and Neutron Powder Diffraction data. Iodometric titration was used to examine the oxygen stoichiometry and average cobalt oxidation state. Low‐temperature magnetic studies show soft ferromagnetic character of fully oxidized material, with θP = 198(3) K and µeff = 2.11(2) µB. Electric measurements show the thermally activated nature of conductivity at low temperatures, whereas, due to the variable oxidation and spin state of cobalt, a single charge transport mechanism cannot be distinguished. Around room temperature, a wide transition from thermally activated conductivity to semi‐metallic behavior is observed. Under the inert atmosphere, the oxygen content lowers and the cation ordering takes place, leading to coexistence of two, ordered and disordered, phases. As a result of this change, thermally activated conductivity is observed also at high temperatures in inert atmosphere.

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“…Generally, these materials are mixed ionicelectronic conductors (MIECs) favoring the reduction of the cathode area specific resistance (ASR) [5]. The lowest ASR values have been reported for cathodes with mixed alkali-earths and/or lanthanides in the A site and mixed cobalt and iron in the B M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT 4 site of the perovskite structure such as (Ba,Sr)(Co,Fe)O 3-δ (BSCF) [6][7][8], (La,Sr)(Co,Fe)O 3-δ (LSFC) [9][10][11][12][13] and LnBaCo 2 O 5+δ [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Effect of the symmetric cell preparation temperature on the activity of Ba0.5Sr0.5Fe0.8Cu0.2O3-δ as cathode for intermediate temperature Solid Oxide Fuel Cells

Vázquez

Basbus

Soldati

et al. 2015

Journal of Power Sources

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A comparative study of electrochemical performance of La0.5Ba0.5CoO3−δ and La0.5Ba0.5CoO3−δ–Gd0.1Ce0.9O1.95 cathodes

Cited by 38 publications

References 30 publications

A novel micro-solid oxide fuel cell ( $$\upmu $$ μ -SOFC) for detecting methane content in biogas

A novel micro-solid oxide fuel cell ( $$\upmu $$ μ -SOFC) for detecting methane content in biogas

Electric and magnetic properties of lanthanum barium cobaltite

Effect of the symmetric cell preparation temperature on the activity of Ba0.5Sr0.5Fe0.8Cu0.2O3-δ as cathode for intermediate temperature Solid Oxide Fuel Cells

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