Synthesis and characterization of PrBaCo2 − x Ni x O5 + δ cathodes for intermediate temperature SOFCs

Liu, Lan; Guo, Ruisong; Wang, Chao; Zhang, Chao; Yang, Yuexia; Wang, Shanshan

doi:10.1007/s10008-014-2534-8

Cited by 17 publications

(10 citation statements)

References 35 publications

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“…Several other sodium ion battery electrodes were used as battery‐type electrode for Na‐ion BSHs, such as V 2 O 5 , sodium titanate, Na x MnO 2 , K x MnO 2 , cobalt hexacynoferrate (CoHCF), Na 4 Mn 9 O 18 , etc. Among them, α‐V 2 O 5 could accommodate a variety of metal ions (Li + , Na + , K + , etc.)…”

Section: Recent Advances On Materials and Performance Of Bshsmentioning

confidence: 99%

“…Although various capacitive electrodes from Li‐ and Na‐ion BSHs may be utilized, there are still huge challenges from the K‐ion intercalation battery‐type electrodes, as the ionic radius of K + is much larger than that of Li + /Na + and thus the host materials are very lacking. Nevertheless, some recent works on advanced K‐ion battery electrodes of K x MnO 2 , hexacyanoferrates,[4b] and K 2 C 6 O 6 [4c] have shed great light on designing K‐ion BSH.…”

Section: Recent Advances On Materials and Performance Of Bshsmentioning

confidence: 99%

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Battery‐Supercapacitor Hybrid Devices: Recent Progress and Future Prospects

et al. 2017

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Design and fabrication of electrochemical energy storage systems with both high energy and power densities as well as long cycling life is of great importance. As one of these systems, Battery‐supercapacitor hybrid device (BSH) is typically constructed with a high‐capacity battery‐type electrode and a high‐rate capacitive electrode, which has attracted enormous attention due to its potential applications in future electric vehicles, smart electric grids, and even miniaturized electronic/optoelectronic devices, etc. With proper design, BSH will provide unique advantages such as high performance, cheapness, safety, and environmental friendliness. This review first addresses the fundamental scientific principle, structure, and possible classification of BSHs, and then reviews the recent advances on various existing and emerging BSHs such as Li‐/Na‐ion BSHs, acidic/alkaline BSHs, BSH with redox electrolytes, and BSH with pseudocapacitive electrode, with the focus on materials and electrochemical performances. Furthermore, recent progresses in BSH devices with specific functionalities of flexibility and transparency, etc. will be highlighted. Finally, the future developing trends and directions as well as the challenges will also be discussed; especially, two conceptual BSHs with aqueous high voltage window and integrated 3D electrode/electrolyte architecture will be proposed.

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Section: Recent Advances On Materials and Performance Of Bshsmentioning

confidence: 99%

Section: Recent Advances On Materials and Performance Of Bshsmentioning

confidence: 99%

Battery‐Supercapacitor Hybrid Devices: Recent Progress and Future Prospects

et al. 2017

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“…For example, double perovskite PrBaCo 2 O 5+ δ and the Ni‐doped PrBaCo 2− x Ni x O 5+ δ show semiconductor conductivity when the temperature is below 250 °C, and a metallic transition behavior can be observed at higher temperatures. [ 20 ] Ruddlesden–Popper (R–P) structured Ln 1.2 Sr 0.8 NiO 4 (Ln = La and Pr) also shows the semiconductor to metal transition behavior at around 700 °C. [ 21 ] This phenomenon could be attributed to the excessive oxygen loss from the lattice.…”

Section: Resultsmentioning

confidence: 99%

An Unbalanced Battle in Excellence: Revealing Effect of Ni/Co Occupancy on Water Splitting and Oxygen Reduction Reactions in Triple‐Conducting Oxides for Protonic Ceramic Electrochemical Cells

Tang

Ding

Bian

et al. 2022

Small

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Porous electrodes that conduct electrons, protons, and oxygen ions with dramatically expanded catalytic active sites can replace conventional electrodes with sluggish kinetics in protonic ceramic electrochemical cells. In this work, a strategy is utilized to promote triple conduction by facilitating proton conduction in praseodymium cobaltite perovskite through engineering non‐equivalent B‐site Ni/Co occupancy. Surface infrared spectroscopy is used to study the dehydration behavior, which proves the existence of protons in the perovskite lattice. The proton mobility and proton stability are investigated by hydrogen/deuterium (H/D) isotope exchange and temperature‐programmed desorption. It is observed that the increased nickel replacement on the B‐site has a positive impact on proton defect stability, catalytic activity, and electrochemical performance. This doping strategy is demonstrated to be a promising pathway to increase catalytic activity toward the oxygen reduction and water splitting reactions. The chosen PrNi0.7Co0.3O3−δ oxygen electrode demonstrates excellent full‐cell performance with high electrolysis current density of −1.48 A cm−2 at 1.3 V and a peak fuel‐cell power density of 0.95 W cm−2 at 600 °C and also enables lower‐temperature operations down to 350 °C, and superior long‐term durability.

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“…For example, the maximum electrical conductivities are 76.0 ± 1.1 S cm −1 , 71.3 ± 1.1 S cm −1 , 60.9 ± 0.9 S cm −1 and 45.9 ± 0.7 S cm −1 for BFC‐10, BFC‐15, BFC‐20 and BFC‐25, respectively. The partial substitution of lower valence Cu ions in B‐site decreases the oxidation state of Fe ions, which demonstrates the decrease of negative charge carrier concentration 35.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Electrochemical Properties of BaFe₁₋_xCu_xO₃₋_δ Perovskite Oxide for IT‐SOFC Cathode

Xie

Guo

et al. 2016

Fuel Cells

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A series of iron‐based perovskite oxides BaFe1−xCuxO3−δ (x = 0.10, 0.15, 0.20 and 0.25, abbreviated as BFC‐10, BFC‐15, BFC‐20 and BFC‐25, respectively) as cathode materials have been prepared via a combined EDTA‐citrate complexing sol‐gel method. The effects of Cu contents on the crystal structure, chemical stability, electrical conductivity, thermal expansion coefficient (TEC) and electrochemical properties of BFC‐x materials have been studied. All the BFC‐x samples exhibit the cubic phase with a space group Pm3m (221). The electrical conductivity decreases with increasing Cu content. The maximum electrical conductivity is 60.9 ± 0.9 S cm−1 for BFC‐20 at 600 °C. Substitution of Fe by Cu increases the thermal expansion coefficient. The average TEC increases from 20.6 × 10−6 K−1 for BFC‐10 to 23.7 × 10−6 K−1 for BFC‐25 at the temperature range of 30–850 °C. Among the samples, BFC‐20 shows the best electrochemical performance. The area specific resistance (ASR) of BFC‐20 on SDC electrolyte is 0.014 Ω cm2 at 800 °C. The single fuel cell with the configguration of BFC‐20/SDC/NiO‐SDC delivers the highest power density of 0.57 W cm−2 at 800 °C. The favorable electrochemical activities can be attributed to the cubic lattice structure and the high oxygen vacancy concentration caused by Cu doping.

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Synthesis and characterization of PrBaCo2 − x Ni x O5 + δ cathodes for intermediate temperature SOFCs

Cited by 17 publications

References 35 publications

Battery‐Supercapacitor Hybrid Devices: Recent Progress and Future Prospects

Battery‐Supercapacitor Hybrid Devices: Recent Progress and Future Prospects

An Unbalanced Battle in Excellence: Revealing Effect of Ni/Co Occupancy on Water Splitting and Oxygen Reduction Reactions in Triple‐Conducting Oxides for Protonic Ceramic Electrochemical Cells

Synthesis and Electrochemical Properties of BaFe₁₋_xCu_xO₃₋_δ Perovskite Oxide for IT‐SOFC Cathode

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Synthesis and characterization of PrBaCo2 − x Ni x O5 + δ cathodes for intermediate temperature SOFCs

Cited by 17 publications

References 35 publications

Battery‐Supercapacitor Hybrid Devices: Recent Progress and Future Prospects

Battery‐Supercapacitor Hybrid Devices: Recent Progress and Future Prospects

An Unbalanced Battle in Excellence: Revealing Effect of Ni/Co Occupancy on Water Splitting and Oxygen Reduction Reactions in Triple‐Conducting Oxides for Protonic Ceramic Electrochemical Cells

Synthesis and Electrochemical Properties of BaFe1−xCuxO3−δ Perovskite Oxide for IT‐SOFC Cathode

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Synthesis and Electrochemical Properties of BaFe₁₋_xCu_xO₃₋_δ Perovskite Oxide for IT‐SOFC Cathode