Transparent conductive oxide type materials as the anode of solid oxide fuel cells at a reduced temperature

Zhang, Xuelin; Zhang, Yuan; Ni, Jiupai; Irvine, John T. S.; Ni, Chengsheng

doi:10.1039/d2ta06915f

Cited by 6 publications

(1 citation statement)

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“…Metal was found to be the key part in determining the catalysis of H 2 oxidation, but some metallic oxides with density of state on the Fermi level could also act as the electron reservoir to catalyze the oxidation of H 2 or reduction reaction of H 2 O. , SrCrO 3−δ , a metallic oxide with high electronic conductivity with oxide-ion conductivity in a reduced state, could provide the oxygen vacancy and the electron reservoir for the activation and oxidation of H 2 . The hurdle in using SrCrO 3−δ is that it can be oxidized to insulating SrCrO 4 with Cr 6+ in air, even at very low temperature.…”

Section: Introductionmentioning

confidence: 99%

Sr-Doped PrCrO₃ with Intelligent SrCrO_x Cocatalyst for the Fuel Electrode of Reversible Solid Oxide Cells

Hu,

Wang,

et al. 2024

ACS Sustainable Chem. Eng.

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Reversible solid oxide cells (RSOCs) are energyconversion devices that can convert electricity into chemical energy and vice versa. The working environment of the fuel electrode would vary significantly between the two modes and the design of an efficient and durable fuel electrode is urgent and demanding. In this work, Pr 1−x Sr x CrO 3 (x = 0.2, 0.3) perovskites were explored, aiming to find proper fuel electrodes for a RSOC. A minor amount of SrCrO 4 was produced in Pr 0.8 Sr 0.2 CrO 3 (PS20C) and Pr 0.7 Sr 0.3 CrO 3 (PS30C) under oxygenation and can be reduced to SrCrO 3−δ by reduction in 5% H 2 . The polarization resistance (R p ) value of PS30C was significantly lower than PS20C (0.15 Ω cm 2 versus 2.11 Ω cm 2 ) at 800 °C and the higher performance of the PS30C fuel electrode could be related partially to the production of more metallic SrCrO 3−δ . A high performance was obtained in either fuel cell mode or electrolysis mode using a PS30C fuel electrode with the intelligent SrCrO x and the additional Ni infiltration does not enhance the performance. Ru infiltration into the PS30C further enhances the cell performance, imparting a peak power of 832 mW cm −2 as fuel cell and a current density of 1.19 A cm −2 at 1.3 V for steam electrolysis at 800 °C. The reversible switching at 0.6 V for H 2 oxidation and 1.3 V for steam electrolysis was tested for 12 cycles, and insignificant performance degradation was found for the PS30C cell with Ru infiltration. This work advances the development of PrCrO 3 perovskite with metallic oxide SrCrO x cocatalyst for high-performance RSOC fuel electrodes.

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Section: Introductionmentioning

confidence: 99%

Sr-Doped PrCrO₃ with Intelligent SrCrO_x Cocatalyst for the Fuel Electrode of Reversible Solid Oxide Cells

Hu,

Wang,

et al. 2024

ACS Sustainable Chem. Eng.

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A finger-like anode with infiltrated Ni0.1Ce0.9O2-δ catalyst using new phase inversion combined tape-casting technology for optimized dry reforming of methane

Sha,

Ling,

Yang

et al. 2023

Ceramics International

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Cu doping enhanced the performance of BaFe0.8Zr0.1Y0.1O3-δ cathode for a proton-conducting solid oxide fuel cell at low temperature

Wang,

Cui,

et al. 2024

International Journal of Hydrogen Energy

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Transparent conductive oxide type materials as the anode of solid oxide fuel cells at a reduced temperature

Abstract: Solid oxide fuel cells (SOFCs) can be used for the high-efficiency conversion of chemical energy into electricity. The exploration of oxide anode will enhance the coking resistance and the oxidation-reduction...

Cited by 6 publications

References 78 publications

Sr-Doped PrCrO₃ with Intelligent SrCrO_x Cocatalyst for the Fuel Electrode of Reversible Solid Oxide Cells

Sr-Doped PrCrO₃ with Intelligent SrCrO_x Cocatalyst for the Fuel Electrode of Reversible Solid Oxide Cells

A finger-like anode with infiltrated Ni0.1Ce0.9O2-δ catalyst using new phase inversion combined tape-casting technology for optimized dry reforming of methane

Cu doping enhanced the performance of BaFe0.8Zr0.1Y0.1O3-δ cathode for a proton-conducting solid oxide fuel cell at low temperature

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Transparent conductive oxide type materials as the anode of solid oxide fuel cells at a reduced temperature

Abstract: Solid oxide fuel cells (SOFCs) can be used for the high-efficiency conversion of chemical energy into electricity. The exploration of oxide anode will enhance the coking resistance and the oxidation-reduction...

Cited by 6 publications

References 78 publications

Sr-Doped PrCrO3 with Intelligent SrCrOx Cocatalyst for the Fuel Electrode of Reversible Solid Oxide Cells

Sr-Doped PrCrO3 with Intelligent SrCrOx Cocatalyst for the Fuel Electrode of Reversible Solid Oxide Cells

A finger-like anode with infiltrated Ni0.1Ce0.9O2-δ catalyst using new phase inversion combined tape-casting technology for optimized dry reforming of methane

Cu doping enhanced the performance of BaFe0.8Zr0.1Y0.1O3-δ cathode for a proton-conducting solid oxide fuel cell at low temperature

Contact Info

Product

Resources

About

Sr-Doped PrCrO₃ with Intelligent SrCrO_x Cocatalyst for the Fuel Electrode of Reversible Solid Oxide Cells

Sr-Doped PrCrO₃ with Intelligent SrCrO_x Cocatalyst for the Fuel Electrode of Reversible Solid Oxide Cells