Mo-doped BaCe0·9Y0·1O3-δ proton-conducting electrolyte at intermediate temperature SOFCs. Part I: Microstructure and electrochemical properties

Hanif, Muhammad Bilal; Rauf, Sajid; Mosiałek, Michał; Khan, Kashif; Kavaliukė, V.; Kežionis, A.; Салкус, Т.; Gurgul, Jacek; Medvedev, Dmitry; Zimowska, Małgorzata; Madej, Dominika; Motola, Martin

doi:10.1016/j.ijhydene.2023.01.144

Cited by 29 publications

(4 citation statements)

References 71 publications

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“…Currently, Nafion-based membranes have received commercial benchmark attention, which may be attributed to their excellent chemical stability and higher conductivity. Meanwhile, drawbacks of Nafion membranes are higher cost, difficulty in handling, the higher tendency of permeation, and low thermal and mechanical stability at elevated temperature conditions [146][147][148][149][150]. Hence, cost-effective and mechanically stable alternate membrane research has been prompted all over the globe.…”

Section: Fuel Cell Operationsmentioning

confidence: 99%

Recent Progression and Opportunities of Polysaccharide Assisted Bio-Electrolyte Membranes for Rechargeable Charge Storage and Conversion Devices

Perumal

2023

Electrochem

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Polysaccharide-based natural polymer electrolyte membranes have had tremendous consideration for the various energy storage operations including wearable electronic and hybrid vehicle industries, due to their unique and predominant qualities. Furthermore, they have fascinating oxygen functionality results of a higher flexible nature and help to form easier coordination of metal ions thus improving the conducting profiles of polymer electrolytes. Mixed operations of the various alkali and alkaline metal–salt-incorporated biopolymer electrolytes based on different polysaccharide materials and their charge transportation mechanisms are detailly explained in the review. Furthermore, recent developments in polysaccharide electrolyte separators and their important electrochemical findings are discussed and highlighted. Notably, the characteristics and ion-conducting mechanisms of different biopolymer electrolytes are reviewed in depth here. Finally, the overall conclusion and mandatory conditions that are required to implement biopolymer electrolytes as a potential candidate for the next generation of clean/green flexible bio-energy devices with enhanced safety; several future perspectives are also discussed and suggested.

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Section: Fuel Cell Operationsmentioning

confidence: 99%

Recent Progression and Opportunities of Polysaccharide Assisted Bio-Electrolyte Membranes for Rechargeable Charge Storage and Conversion Devices

Perumal

2023

Electrochem

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“…Up to 300 °C, a 6 mg weight loss is observed due to the evaporation of the adsorbed water and solvent. A noticeable weight loss can be seen at 550 °C due to the decomposition of BaCO 3 [4,30,35,36]. At 1150 °C, the allotropic transformation occurs, and the crystal structure changes to orthorhombic one [4,30,37].…”

Section: Thermal Behaviormentioning

confidence: 99%

Ho-Mn co-doping in barium titanate piezoceramics via sol-gel process followed by microwave and conventional heating

et al. 2023

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Co-doped barium titanate (BT) piezoceramics are applied in advanced energy harvesting systems. In the present study, Ba1-2xHo2xTi1-xMnxO3 (x=0, 0.02, 0.04, and 0.06) were produced via the sol-gel-assisted solid state co-doping technique followed by microwave and conventional heating. In the current investigation, the synthesizing and phase characterization, allotropic transition, morphological examination, elemental analysis and dielectric-piezoelectric responses were investigated by X-Ray Diffraction (XRD), Differential Scanning Calorimetry (DSC) and Thermo-Gravimetric Analysis (TGA), Field-Emission Scanning Electron Microscope (FESEM), Energy-Dispersive x-ray Spectroscopy (EDS), Mapping analysis and inductance-Capacitance-Resistance meter (LCR meter) techniques, respectively. The XRD pattern and DSC/ TGA outcomes demonstrated that tetragonal BT phases without minor BaCO3 secondary phases are synthesized properly, and that the negligible unsolicited BaCO3 phases are thoroughly calcined by a microwave at 900℃. Doping resulted in an increase in tetragonality (c/a) of 0.19%, 0.15%, and 0.04%, respectively, compared to the pure calcined BT. Additionally, the crystallite size of BT decreased significantly by 59%, 58%, and 52%, respectively. The results revealed that the microwave-sintered samples have higher purity, drastic delicate and finer grain size distribution, and superior tetragonal-ity with respect to the conventionally sintered furnace samples. Furthermore, the piezoelectric constant for the microwave sintered and the conventionally sintered samples with the same value of x=0.04 were 390 and 370 (pC/N), respectively, which established that the sintering method has satisfactory affection (approximately 6%) on the piezo function of the samples. Eventually, the prepared samples which had 0, 2, 4, and 6 % moles of Ho3+-Mn2+ cations and were sintered by a microwave compared to the similar specimens fabricated by the furnace had superior dielectric constants of 2.6, 1.1, 2.2 and 2.9 times, respectively.

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“…Proton ceramic fuel cells (PCFCs), characterized by proton conduction, have emerged as an emerging technology in solid oxide fuel cell systems in recent years. Compared with traditional solid oxide fuel cells (SOFCs) based on oxygen ion-conductive electrolytes, PCFCs have lower temperature dependence and operational feasibility at 400–600 °C due to the low activation energy of proton-conductive electrolytes, , avoiding issues caused by high operating temperatures such as high cost, poor long-term stability, slow startup, and difficult packaging and providing a feasible solution for the mid- to low-temperature development of SOFCs. , However, as the operating temperature reduces, the oxygen reduction reaction (ORR) kinetics of cathode materials becomes sluggish, leading to an increased polarization loss from the cathode, which is currently the main obstacle to the commercialization progression of PCFCs. Moreover, the PCFC cathode must also possess satisfactory conductivity, chemical/thermal compatibility, and stability .…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient A- and B-Site-Doped Ruddlesden–Popper Perovskite Oxide Nd_2–xSr_xNi_0.9Cu_0.1O_4+δ as a Cathode for PCFCs

Wang,

Wu,

Lin

et al. 2024

ACS Appl. Energy Mater.

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At medium and low operating temperatures, the slow reaction kinetics of the cathode is a significant limiting factor hindering proton ceramic fuel cell (PCFC) development. This work reports a Nd2–x Sr x Ni0.9Cu0.1O4+δ (x = 0, 0.2, 0.4, 0.6, 0.8, 1) Ruddlesden–Popper cathode through a combination strategy of A-site Sr2+ and B-site Cu2+ codoping. Appropriate Sr2+ doping has achieved the synergistic optimization of conductivity and electrocatalytic activity by modulating the amount of surface oxygen defects and the valence state of B-site Ni2+. Nd1.4Sr0.6Ni0.9Cu0.1O4+δ (NSNC6) exhibits a remarkably improved conductivity (exceeding 100 S cm–1 from 450 to 750 °C) and an enhanced electrocatalytic activity. The PCFC with the NSNC6-BZCNY triple-conducting cathode exhibits sufficient long-term stability and a maximum power density of 445 mW cm–2 at 650 °C, which is approximately 50% higher than that of the PCFC with the NSNC6 cathode, highlighting its potential as a cathode material for PCFCs.

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Mo-doped BaCe0·9Y0·1O3-δ proton-conducting electrolyte at intermediate temperature SOFCs. Part I: Microstructure and electrochemical properties

Cited by 29 publications

References 71 publications

Recent Progression and Opportunities of Polysaccharide Assisted Bio-Electrolyte Membranes for Rechargeable Charge Storage and Conversion Devices

Recent Progression and Opportunities of Polysaccharide Assisted Bio-Electrolyte Membranes for Rechargeable Charge Storage and Conversion Devices

Ho-Mn co-doping in barium titanate piezoceramics via sol-gel process followed by microwave and conventional heating

Highly Efficient A- and B-Site-Doped Ruddlesden–Popper Perovskite Oxide Nd_2–xSr_xNi_0.9Cu_0.1O_4+δ as a Cathode for PCFCs

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Mo-doped BaCe0·9Y0·1O3-δ proton-conducting electrolyte at intermediate temperature SOFCs. Part I: Microstructure and electrochemical properties

Cited by 29 publications

References 71 publications

Recent Progression and Opportunities of Polysaccharide Assisted Bio-Electrolyte Membranes for Rechargeable Charge Storage and Conversion Devices

Recent Progression and Opportunities of Polysaccharide Assisted Bio-Electrolyte Membranes for Rechargeable Charge Storage and Conversion Devices

Ho-Mn co-doping in barium titanate piezoceramics via sol-gel process followed by microwave and conventional heating

Highly Efficient A- and B-Site-Doped Ruddlesden–Popper Perovskite Oxide Nd2–xSrxNi0.9Cu0.1O4+δ as a Cathode for PCFCs

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Highly Efficient A- and B-Site-Doped Ruddlesden–Popper Perovskite Oxide Nd_2–xSr_xNi_0.9Cu_0.1O_4+δ as a Cathode for PCFCs