X-ray photoelectron spectroscopic study of direct reforming catalysts Ln0.5Sr0.5Ti0.5Mn0.5O3±d (Ln = La, Nd, and Sm) for high temperature-operating solid oxide fuel cell

2016 ◽  
Vol 365 ◽  
pp. 38-46 ◽  
Author(s):  
Keunsoo Kim ◽  
Jihoon Jeong ◽  
Abul K. Azad ◽  
Sang Beom Jin ◽  
Jung Hyun Kim
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Spectroscopic Study ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
X Ray ◽  
Reforming Catalysts ◽  
Temperature Operating

Operando Soft X‐ray Absorption Spectroscopic Study on a Solid Oxide Fuel Cell Cathode during Electrochemical Oxygen Reduction

ChemSusChem ◽  
2017 ◽  
Vol 10 (9) ◽  
pp. 2008-2014 ◽  
Author(s):  
Takashi Nakamura ◽  
Ryo Oike ◽  
Yuta Kimura ◽  
Yusuke Tamenori ◽  
Tatsuya Kawada ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Spectroscopic Study ◽  
Oxygen Reduction ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
X Ray ◽  
Fuel Cell Cathode ◽  
X Ray Absorption ◽  
Electrochemical Oxygen

Characterization of PSCF3737 for Intermediate Temperature-Operating Solid Oxide Fuel Cell (IT-SOFC)

2008 ◽  
Author(s):  
Kwangjin Park ◽  
Seungwhan Baek ◽  
Joongmyeon Bae
Keyword(s):  
Fuel Cell ◽  
Oxygen Vacancy ◽  
Solid Oxide Fuel Cell ◽  
Vacancy Concentration ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Oxygen Vacancy Concentration ◽  
Oxide Fuel ◽  
X Ray ◽  
Temperature Operating

Pr0.3Sr0.7Co0.3Fe0.7O3−δ (PSCF3737) was prepared and characterized as a cathode material for intermediate temperature-operating solid oxide fuel cell (IT-SOFC). X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), extended X-ray absorption fine structure (EXAFS), and electrical property measurement were performed to study cathode performance of the material. XPS and EXAFS results proved that oxygen vacancy concentration was decreased and lattice constants of the perovskite structure material was increased by doping Fe up to 70 mol% at B-site of the crystal structure, which also extended the distance between oxygen and neighbor atom. Thermal expansion coefficient (TEC) of PSCF3737 is smaller than that of Pr0.3Sr0.7CoO3−δ (PSC37) due to lower oxygen vacancy concentration. PSCF3737 showed better cathode performance than PSC37. It might be due good adhesion by a smaller difference of TEC between Gd0.1Ce0.9O2 (CGO91) and electrode. Composite material PSCF3737-CGO91 showed better compatibility of TEC than PSCF3737. However, PSCF3737-CGO91 did not represent higher electrochemical property than PSCF3737 due to a decline of reaction sites by CGO91.

Soft X-Ray Spectroscopic Study of Dense Strontium-Doped Lanthanum Manganite Cathodes for Solid Oxide Fuel Cell Applications

2011 ◽  
Vol 158 (2) ◽  
pp. B99 ◽  
Author(s):  
L. F. J. Piper ◽  
A. R. H. Preston ◽  
S.-W. Cho ◽  
A. DeMasi ◽  
B. Chen ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Spectroscopic Study ◽  
Solid Oxide ◽  
Lanthanum Manganite ◽  
Oxide Fuel ◽  
X Ray
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