Synthesis and characterization of PrBa 0.5 Sr 0.5 Co 2−x Ni x O 5+δ ( x =0.1, 0.2 and 0.3) cathodes for intermediate temperature SOFCs

Liu, Lan; Guo, Ruisong; Wang, Shanshan; Yang, Yuexia; Yin, Dongsheng M.

doi:10.1016/j.ceramint.2014.07.144

Cited by 27 publications

(15 citation statements)

References 26 publications

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“…Figure shows the powder X‐ray diffraction (XRD) patterns of PBSCNs oxides after calcination at 1000 °C. All samples are identified in an orthorhombic perovskite phase with the space group of Pmmm , which is consistent with the literature . The lattice parameter and cell volume of PBSCNs oxides obtained by refined Rietveld method are summarized in Table .…”

Section: Resultssupporting

confidence: 82%

“…The PBSCN3 oxide revealed additional peaks indicating the presence of a secondary phase. These additional peaks marked with asterisks can be assigned to Ba 4 Co 3 O 10 (PDF# 52‐1332) phase …”

Section: Resultsmentioning

confidence: 99%

“…Recently, Liu and coworkers have studied the electrochemical performances of PrBa 0.5 Sr 0.5 Co 2−x Ni x O 5+δ (x=0.1, 0.2 and 0.3) for an IT‐SOFC system by an impedance spectroscopic technique. In their study, PrBa 0.5 Sr 0.5 Co 1.9 Ni 0.1 O 5+δ (PBSCN1) showed the lowest polarization resistance (R P ) value of 0.297 Ω cm 2 and the maximum power density of 120 mW cm −2 at 800 °C among the PrBa 0.5 Sr 0.5 Co 2−x Ni x O 5+δ series …”

Section: Introductionmentioning

confidence: 99%

“…In their study, PrBa 0.5 Sr 0.5 Co 1.9 Ni 0.1 O 5 + δ (PBSCN1) showed the lowest polarization resistance (R P ) value of 0.297 Ω cm 2 and the maximum power density of 120 mW cm À 2 at 800°C among the PrBa 0.5 Sr 0.5 Co 2À x Ni x O 5 + δ series. [34] In this study, we investigated the electrochemical performances of PrBa 0.5 Sr 0.5 Co 2À x Ni x O 5 + δ (x = 0, 0.1, 0.2 and 0.3) towards OER and ORR reactions in alkaline media by a rotating ring disk electrode (RRDE) method. Also, the electrochemical performances of these perovskites were evaluated using an alkaline Znair battery under ambient temperature.…”

Section: Introductionmentioning

confidence: 99%

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Advanced Electrochemical Properties of PrBa_0.5Sr_0.5Co_1.9Ni_0.1O_5+δ as a Bifunctional Catalyst for Rechargeable Zinc‐Air Batteries

et al. 2019

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Various simple and layered perovskites have been extensively investigated as promising cathode materials for metal‐air batteries and fuel cells, because of their tunable structural, electronic, and chemical properties. However, the electrocatalytic activity of perovskite oxides towards the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) must be improved by increasing the slow kinetics and by decreasing the overpotential associated with those reactions. Doping with other transition metals such as Ni, Mn, Fe and Cu represents one of the effective chemical methods to improve the catalytic activity of perovskite oxides. Herein, we investigate Ni‐doped cobalt‐based double perovskites, PrBa0.5Sr0.5Co2‐xNixO5+δ (x=0, 0.1, 0.2 and 0.3), as promising cathode materials for rechargeable alkaline Zn‐air batteries. PrBa0.5Sr0.5Co1.9Ni0.1O5+δ (PBSCN1) shows low Tafel slopes (OER: 83 mV dec−1 and ORR: 67 mV dec−1), favorable onset potentials (OER: 1.513 V vs. RHE at 1 mA cm−2 and ORR: 0.720 V vs. RHE at −1 mA cm−2), and high limiting currents (OER: 25.20 mA cm−2 and ORR: −5.67 mA cm−2). In addition, it shows improved discharge‐charge performances for a full‐cell Zn‐air battery. The enhanced electrochemical properties of PBSCN1 could be achieved by the high concentration of surface oxygen species, and the coexistence of different chemical states of cobalt cations caused by the presence of nickel cations in the lattice. Based on these results, PrBa0.5Sr0.5Co1.9Ni0.1O5+δ could be considered a promising cathode material for Zn‐air battery systems.

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Section: Resultssupporting

confidence: 82%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Advanced Electrochemical Properties of PrBa_0.5Sr_0.5Co_1.9Ni_0.1O_5+δ as a Bifunctional Catalyst for Rechargeable Zinc‐Air Batteries

et al. 2019

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“…When Ba is fully replaced by Sr, the structure changed to a simple perovskite27. To enhance the electrochemical performance while maintaining the structure, half of the Ba atoms are usually substituted by Sr (refs 23, 27, 28). It was demonstrated that Sr- or Fe-doping will change the electrical conductivity, oxygen content and thermal expansion coefficient of PBC-based cathodes for solid oxide fuel cells (SOFCs)2729.…”

Section: Resultsmentioning

confidence: 99%

A tailored double perovskite nanofiber catalyst enables ultrafast oxygen evolution

Zhao¹,

Zhang²,

Zhen³

et al. 2017

Nat Commun

346

259

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Rechargeable metal–air batteries and water splitting are highly competitive options for a sustainable energy future, but their commercialization is hindered by the absence of cost-effective, highly efficient and stable catalysts for the oxygen evolution reaction. Here we report the rational design and synthesis of a double perovskite PrBa0.5Sr0.5Co1.5Fe0.5O5+δ nanofiber as a highly efficient and robust catalyst for the oxygen evolution reaction. Co-doping of strontium and iron into PrBaCo2O5+δ is found to be very effective in enhancing intrinsic activity (normalized by the geometrical surface area, ∼4.7 times), as validated by electrochemical measurements and first-principles calculations. Further, the nanofiber morphology enhances its mass activity remarkably (by ∼20 times) as the diameter is reduced to ∼20 nm, attributed to the increased surface area and an unexpected intrinsic activity enhancement due possibly to a favourable eg electron filling associated with partial surface reduction, as unravelled from chemical titration and electron energy-loss spectroscopy.

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Cathodes for Solid Oxide Fuel Cell

Zhou

Jin

2020

Solid Oxide Fuel Cells

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Synthesis and characterization of PrBa 0.5 Sr 0.5 Co 2−x Ni x O 5+δ ( x =0.1, 0.2 and 0.3) cathodes for intermediate temperature SOFCs

Cited by 27 publications

References 26 publications

Advanced Electrochemical Properties of PrBa_0.5Sr_0.5Co_1.9Ni_0.1O_5+δ as a Bifunctional Catalyst for Rechargeable Zinc‐Air Batteries

Advanced Electrochemical Properties of PrBa_0.5Sr_0.5Co_1.9Ni_0.1O_5+δ as a Bifunctional Catalyst for Rechargeable Zinc‐Air Batteries

A tailored double perovskite nanofiber catalyst enables ultrafast oxygen evolution

Cathodes for Solid Oxide Fuel Cell

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Synthesis and characterization of PrBa 0.5 Sr 0.5 Co 2−x Ni x O 5+δ ( x =0.1, 0.2 and 0.3) cathodes for intermediate temperature SOFCs

Cited by 27 publications

References 26 publications

Advanced Electrochemical Properties of PrBa0.5Sr0.5Co1.9Ni0.1O5+δ as a Bifunctional Catalyst for Rechargeable Zinc‐Air Batteries

Advanced Electrochemical Properties of PrBa0.5Sr0.5Co1.9Ni0.1O5+δ as a Bifunctional Catalyst for Rechargeable Zinc‐Air Batteries

A tailored double perovskite nanofiber catalyst enables ultrafast oxygen evolution

Cathodes for Solid Oxide Fuel Cell

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Product

Resources

About

Advanced Electrochemical Properties of PrBa_0.5Sr_0.5Co_1.9Ni_0.1O_5+δ as a Bifunctional Catalyst for Rechargeable Zinc‐Air Batteries

Advanced Electrochemical Properties of PrBa_0.5Sr_0.5Co_1.9Ni_0.1O_5+δ as a Bifunctional Catalyst for Rechargeable Zinc‐Air Batteries