Oxygen reduction reaction over (Ba,Sr)6RE2Co4O15–Ba(Ce,Pr,Y)O3 composite cathodes for proton-conducting ceramic fuel cells

2021 ◽  
Author(s):  
Toshiaki Matsui ◽  
Naoki Kunimoto ◽  
Kohei Manriki ◽  
Kazunari Miyazaki ◽  
Naoto Kamiuchi ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Reaction Mechanism ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Composite Cathode ◽  
Reduction Reaction ◽  
Proton Conducting ◽  
Composite Cathodes ◽  
Ceramic Fuel ◽  
Ceramic Fuel Cells

The oxygen reduction reaction mechanism on the Ba5SrGd2Co4O15–BaCe0.5Pr0.3Y0.2O3−δ (BSGC–BCPY) composite cathode for proton-conducting fuel cells.

Enhanced oxygen reduction reaction through Ca and Co Co-doped YFeO3 as cathode for protonic ceramic fuel cells

2019 ◽  
Vol 413 ◽  
pp. 148-157 ◽  
Author(s):  
Jiajia Cui ◽  
Junkai Wang ◽  
Xiongwen Zhang ◽  
Guojun Li ◽  
Kai Wu ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Ceramic Fuel ◽  
Ceramic Fuel Cells ◽  
Co Doped

A new oxygen reduction electrocatalyst of barium lanthanide cobaltate for composite cathodes of proton-conducting ceramic fuel cells

2018 ◽  
Vol 6 (29) ◽  
pp. 14188-14194 ◽  
Author(s):  
Toshiaki Matsui ◽  
Kohei Manriki ◽  
Kazunari Miyazaki ◽  
Hiroki Muroyama ◽  
Koichi Eguchi
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction ◽  
Proton Conducting ◽  
Composite Cathodes ◽  
Ceramic Fuel ◽  
Ceramic Fuel Cells

A new oxygen reduction electrocatalyst of barium lanthanide cobaltate of Ba4Sr2Sm2Co4O15 (BSSC) for composite cathodes of proton-conducting ceramic fuel cells.

scholarly journals The oxygen reduction reaction mechanism on Sn doped graphene as an electrocatalyst in fuel cells: a DFT study

RSC Advances ◽  
2017 ◽  
Vol 7 (2) ◽  
pp. 729-734 ◽  
Author(s):  
Xiaoxu Sun ◽  
Kai Li ◽  
Cong Yin ◽  
Ying Wang ◽  
Feng He ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Reaction Mechanism ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Dft Study ◽  
Oxygen Reduction Reaction Activity ◽  
Doped Graphene

Heteroatom doped graphene has caused particular interest in recent years due to its promising ORR (oxygen reduction reaction) activity in fuel cells.

scholarly journals High-Performance La0.5Ba0.5Co1/3Mn1/3Fe1/3O3−δ-BaZr1−zYzO3−δ Cathode Composites via an Exsolution Mechanism for Protonic Ceramic Fuel Cells

Inorganics ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 83 ◽  
Author(s):  
Laura Rioja-Monllor ◽  
Sandrine Ricote ◽  
Carlos Bernuy-Lopez ◽  
Tor Grande ◽  
Ryan O’Hayre ◽  
...  
Keyword(s):  
Fuel Cells ◽  
High Performance ◽  
Single Phase ◽  
Composite Cathode ◽  
Nominal Composition ◽  
Composite Cathodes ◽  
Phase Precursor ◽  
Ceramic Fuel ◽  
Two Phases ◽  
Ceramic Fuel Cells

A novel exsolution process was used to fabricate complex all-oxide nanocomposite cathodes for Protonic Ceramic Fuel Cells (PCFCs). The nanocomposite cathodes with La0.5Ba0.5Co1/3Mn1/3Fe1/3O3−δ-BaZr1−zYzO3−δ nominal composition were prepared from a single-phase precursor via an oxidation-driven exsolution mechanism. The exsolution process results in a highly nanostructured and intimately interconnected percolating network of the two final phases, one proton conducting (BaZr1−zYzO3−δ) and one mixed oxygen ion and electron conducting (La0.5Ba0.5Co1/3Mn1/3Fe1/3O3−δ), yielding excellent cathode performance. The cathode powder is synthesized as a single-phase cubic precursor by a modified Pechini route followed by annealing at 700 °C in N2. The precursor phase is exsolved into two cubic perovskite phases by further heat treatment in air. The phase composition and chemical composition of the two phases were confirmed by Rietveld refinement. The electrical conductivity of the composites was measured and the electrochemical performance was determined by impedance spectroscopy of symmetrical cells using BaZr0.9Y0.1O2.95 as electrolyte. Our results establish the potential of this exsolution method where a large number of different cations can be used to design composite cathodes. The La0.5Ba0.5Co1/3Mn1/3Fe1/3O3−δ-BaZr0.9Y0.1O2.95 composite cathode shows the best performance of 0.44 Ω∙cm2 at 600 °C in 3% moist synthetic air.

scholarly journals La0.6Sr0.4Co0.2Fe0.8O3−δ–Ba(Ce,Co,Y)O3−δ Composite Cathodes for Proton-conducting Ceramic Fuel Cells

2020 ◽  
Vol 88 (1) ◽  
pp. 28-33 ◽  
Author(s):  
Kazunari MIYAZAKI ◽  
Yidan DING ◽  
Hiroki MUROYAMA ◽  
Toshiaki MATSUI ◽  
Koichi EGUCHI
Keyword(s):  
Fuel Cells ◽  
Proton Conducting ◽  
Composite Cathodes ◽  
Ceramic Fuel ◽  
Ceramic Fuel Cells
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