scholarly journals Potential Cycle-Induced Change in the Crystal Structure of a Pt-Skin/PtCo Alloy Nanostructured Electrocatalyst for Fuel Cells

2019 ◽  
Vol 2 (12) ◽  
pp. 7473-7477 ◽  
Author(s):  
Hiroshi Yano ◽  
Naoki Takao ◽  
Masazumi Arao ◽  
Masashi Matsumoto ◽  
Takanori Itoh ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Fuel Cells ◽  
Potential Cycle ◽  
Ptco Alloy

High Temperature Defect Equilibrium, Solid State Properties and Crystal Structure of La0.6Sr0.4Co1-yFeyO3-δ (y=0.2, 0.4, 0.6, 0.8) for Cathode of Solid Oxide Fuel Cells

2019 ◽  
Vol 25 (2) ◽  
pp. 2375-2380 ◽  
Author(s):  
Yasuhiro Fukuda ◽  
Shin-ichi Hashimoto ◽  
Kazuhisa Sato ◽  
Keiji Yashiro ◽  
Junichiro Mizusaki
Keyword(s):  
Crystal Structure ◽  
Fuel Cells ◽  
High Temperature ◽  
Solid State ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel

scholarly journals Combinatorial screening of crystal structure in Ba-Sr-Mn-Ce perovskite oxides with ABO3 stoichiometry

2021 ◽  
Author(s):  
Su Jeong Heo ◽  
Andriy Zakutayev
Keyword(s):  
Crystal Structure ◽  
Fuel Cells ◽  
Chemical Properties ◽  
Perovskite Oxides ◽  
Physical And Chemical Properties ◽  
Combinatorial Screening ◽  
Significant Interest ◽  
Physical And Chemical ◽  
And Chemical Properties

ABO3 oxides with the perovskite-related structures are attracting significant interest due to their promising physical and chemical properties for many applications requiring tunable chemistry, including fuel cells, catalysis, and electrochemical...

scholarly journals Crystal structure, local atomic order and metastable phases of zirconia-based nanoceramics for solid-oxide fuel cells

2011 ◽  
Vol 67 (a1) ◽  
pp. C489-C489
Author(s):  
D. G. Lamas ◽  
P. M. Abdala ◽  
L. M. Acuña ◽  
I. O. Fábregas ◽  
R. O. Fuentes ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Metastable Phases ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Atomic Order

scholarly journals 6,7-Dihydro-5H-pyrrolo[1,2-a]imidazole

IUCrData ◽  
2020 ◽  
Vol 5 (5) ◽  
Author(s):  
Oscar Morales-Collazo ◽  
Vincent M. Lynch ◽  
Joan F. Brennecke
Keyword(s):  
Crystal Structure ◽  
Fuel Cells ◽  
Hydrogen Bonds ◽  
Electrochemical Properties ◽  
Imidazole Ring ◽  
Ring System ◽  
Pyrrolidine Ring ◽  
Envelope Conformation ◽  
Fused Ring ◽  
Fused Ring System

The crystal structure of 6,7-dihydro-5H-pyrrolo[1,2-a]imidazole, C6H8N2, at 100 K has monoclinic (P21/n) symmetry. The molecule adopts an envelope conformation of the pyrrolidine ring, which might help for the relief torsion tension. The crystal cohesion is achieved by C—H...N hydrogen bonds. Interestingly, this fused ring system provides protection of the α-C atom (attached to the non-bridging N atom of the imidazole ring), which provides stability that is of interest with respect to electrochemical properties as electrolytes for fuel cells and batteries, and electrodeposition.

Layered LnBaCo2O5+δ perovskite cathodes for solid oxide fuel cells: an overview and perspective

2015 ◽  
Vol 3 (48) ◽  
pp. 24195-24210 ◽  
Author(s):  
Jung-Hyun Kim ◽  
Arumugam Manthiram
Keyword(s):  
Crystal Structure ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Recent Progress ◽  
Operating Temperature ◽  
Solid Oxide ◽  
Layered Perovskite ◽  
Oxide Fuel ◽  
Composition Properties ◽  
A Site

Aligned with an ever growing interest to reduce the operating temperature of solid oxide fuel cells (SOFCs), the A-site ordered LnBaCo2O5+δ layered perovskite family has been actively investigated as cathodes during the last decade. This review aims to provide the recent progress in the LnBaCo2O5+δ family with regard to crystal structure, chemical composition, properties, performances, and chemical stability.

Fabrication and Characterisation of La0.6Sr0.4Co0.2Fe0.8O3-δ-SDC Composite Cathode

2011 ◽  
Vol 471-472 ◽  
pp. 268-273 ◽  
Author(s):  
Hamimah Abd Rahman ◽  
Andanastuti Muchtar ◽  
Norhamidi Muhamad ◽  
Huda Abdullah
Keyword(s):  
Crystal Structure ◽  
Fuel Cells ◽  
Solid State ◽  
Cathode Materials ◽  
Composite Cathode ◽  
Doped Ceria ◽  
Composite Powders ◽  
Solid State Method ◽  
Ceramic Electrolyte ◽  
State Method

Composite cathode is a promising material to be used as electrodes in fuel cells. The fabricated composite cathode materials in this study are comprised of a mixture of submicron La0.6Sr0.4Co0.2Fe0.8O3- (LSCF6428) powders with two types of nanoscale ionically conducting ceramic electrolyte materials, samarium-doped ceria (SDC) and SDC-carbonate (SDCc). 30 – 50 wt% of electrolyte materials are added to the LSCF6428 cathode via the solid state method. The composite powders were ball-milled in ethanol and calcined at the temperature range of 800°C to 900°C for 2 hours in air. The composite cathode powders are characterised in terms of morphology and crystal structure. It is found that after calcining, the LSCF and the electrolyte materials retained their original structures as there was no chemical reaction between the two components. In addition, the LSCF-SDC composite cathode powders were found to exhibit a narrower distribution in size compared to the LSCF-SDC carbonate powders.

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