Preparation, chemical stability and electrochemical properties of LSCF–CBO composite cathodes

Uniform porous pompon-like Mg-incorporated [Formula: see text]-Ni(OH)2 were designed and synthesized by a facile co-precipitation method. The results of ICP, XRD, FESEM, EDS and N2 adsorption/desorption isotherms revealed that Mg[Formula: see text] in the Ni(OH)2 lattice had a significant effect on the physicochemical and electrochemical properties. The enhanced chemical stability, high specific capacitance of 1647 F g[Formula: see text], excellent rate capability and long cycle life with capacitance retention of 82.0% after 1000 cycles were obtained for Mg-incorporated samples.

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Influence of Partial Substitution of Ba2+ for Sm3+ on the Structure and Electrochemical Properties of Sm 0.5-xBaxSr0.5Co0.8Fe 0.2O3-δPerovskite

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.239-242.552 ◽

2011 ◽

Vol 239-242 ◽

pp. 552-557

Author(s):

Yan Hua Wang ◽

Xi Wen Song ◽

Fen Zhou ◽

Jian Quan Gao ◽

Sheng Li An

Keyword(s):

Thermal Expansion ◽

Electrochemical Properties ◽

Specific Resistance ◽

Sol Gel ◽

Partial Substitution ◽

Impedance Method ◽

Orthorhombic Symmetry ◽

Expansion Behavior ◽

Composite Cathodes ◽

Area Specific Resistance

Sm0.5-xBaxSr0.5Co0.8Fe0.2O3-δpowders were synthesized by a sol-gel method. The crystal structure and thermal expansion coefficient of Sm0.5-xBaxSr0.5Co0.8Fe0.2O3-δ(SBSCF,x=0.00, 0.05, 0.10) were investigated. All samples were the perovskite structure with an orthorhombic symmetry and exhibited a similar thermal expansion behavior. The electrochemical properties of SBSCF-SDC composite cathodes were studied using A.C. impedance method. The substitution of Ba2+for Sm3+had a significant effect on the area specific resistance of the composite cathodes. The area specific resistance (ASR) decreased with the increase of Ba2+substitution. This result suggested that the electrochemical performance of Sm0.5Sr0.5Co0.8Fe0.2O3-δbased cathode improved as Sm3+is partially substituted by Ba2+.

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Electrochemical properties of GdBaCo2/3Fe2/3Cu2/3O5+δ–CGO composite cathodes for solid oxide fuel cell

Ceramics International ◽

10.1016/j.ceramint.2011.05.061 ◽

2012 ◽

Vol 38 ◽

pp. S493-S496 ◽

Cited By ~ 6

Author(s):

Seung Jun Lee ◽

Dong Seok Kim ◽

Seung Hwan Jo ◽

P. Muralidharan ◽

Do Kyung Kim

Keyword(s):

Fuel Cell ◽

Solid Oxide Fuel Cell ◽

Electrochemical Properties ◽

Solid Oxide ◽

Oxide Fuel ◽

Composite Cathodes

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SYNTHESIS AND ELECTROCHEMICAL PROPERTIES OF Li2FeSiO4/C AS CATHODE MATERIALS FOR LITHIUM-ION BATTERIES

Functional Materials Letters ◽

10.1142/s179360471350029x ◽

2013 ◽

Vol 06 (03) ◽

pp. 1350029 ◽

Cited By ~ 4

Author(s):

YUN CHEN ◽

DUOQING ZENG ◽

JUANJUAN PENG ◽

SHIGUANG HU ◽

ZHAOHUI LI ◽

...

Keyword(s):

Electrochemical Properties ◽

Calcination Temperature ◽

Electrochemical Impedance ◽

Lithium Ion ◽

X Ray Diffraction ◽

Composite Cathodes ◽

Solution Route ◽

Xrd Patterns ◽

Reaction Processes ◽

A Current

Li2FeSiO4/C composites have been successfully prepared by a combination of solution route and high-temperature solid-state reaction processes. The morphology and crystalline structure were characterized using scanning electron microscope (SEM) and X-ray diffraction (XRD). Effects of calcination temperature on the electrochemical properties of Li2FeSiO4/C composite cathodes were investigated by cyclic voltammetry (CV), galvanostatic charge–discharge and electrochemical impedance measurements. The XRD patterns indicate that high-purity Li2FeSiO4 with well-developed crystallinity are obtained above 600°C. The primary particle size was increased by elevating the calcination temperature from 600°C to 750°C. The Li2FeSiO4/C composite synthesized at 650°C delivers the largest initial discharge capacity of 153.2 mAh g-1 with a capacity retention of 93.5% after 30 cycles when tested at a current density of C/16 (1C = 166 mAh g-1) between 1.5 and 4.8 V (vs. Li+/Li ).

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Synthesis and electrochemical properties of Li3V2(PO4)3/MWCNTs composite cathodes

Synthetic Metals ◽

10.1016/j.synthmet.2011.08.022 ◽

2011 ◽

Vol 161 (19-20) ◽

pp. 2170-2173 ◽

Cited By ~ 15

Author(s):

Yong Zhang ◽

Yan Lv ◽

Lizhen Wang ◽

Aiqin Zhang ◽

Yanhua Song ◽

...

Keyword(s):

Electrochemical Properties ◽

Composite Cathodes

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Electrochemical properties of Ba0.5Sr0.5Co0.8Fe0.2O3 and BaZr0.65Ce0.20Y0.15O3 composite cathodes on Y-doped barium–cerium–zirconium oxide solid electrolyte

Journal of the Korean Ceramic Society ◽

10.1007/s43207-021-00169-7 ◽

2022 ◽

Author(s):

Jun Seo ◽

Hye-Won Kim ◽

Ji Haeng Yu ◽

Hee Jung Park

Keyword(s):

Electrochemical Properties ◽

Solid Electrolyte ◽

Zirconium Oxide ◽

Composite Cathodes ◽

Oxide Solid Electrolyte

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Preparation of SAMS-CMC-CS bipolar membrane and its application in electro-generating FeO42−

Open Chemistry ◽

10.2478/s11532-006-0065-6 ◽

2007 ◽

Vol 5 (1) ◽

pp. 177-190 ◽

Cited By ~ 5

Author(s):

Yuxi Ren ◽

Zhen Chen ◽

Riyao Chen ◽

Xi Zheng ◽

Yamin Geng

Keyword(s):

Mechanical Strength ◽

Electrochemical Properties ◽

Functional Groups ◽

Cross Section ◽

Chemical Stability ◽

Ir Spectrum ◽

Alkali Solution ◽

Cathode Chamber ◽

Bipolar Membrane ◽

Ft Ir

AbstractThe preparation of SAMS-CMC-CS bipolar membrane grafted onto CMC by SAMS was reported. The cross-section view of SAMS-CMC-CS BM were studied by SEM. FT-IR spectrum indicated that SAMS-CMC-CS BM contained-SO 3−,-COO− and −N=CHR functional groups. Compared with CMC-CS BM, SAMS-CMC-CS BM appears to have better mechanical strength and chemical stability in alkali solution at [OH−]≥9.5 mol/L, with a swelling of 55 %. The electrochemical properties of SAMS-CMC-CS BM were also studied. SAMS-CS-CMC BM not only effectively prevented FeO 42− from diffusing into the cathode chamber, but also played an important role in the supply of OH− consumed during the electro-generated FeO 42− process.

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