Au@BICUVOX10 composite cathode for novel structure low-temperature solid-oxide fuel cells

2010 ◽  
Vol 195 (9) ◽  
pp. 2514-2519 ◽  
Author(s):  
Tao Yang ◽  
Fan Li ◽  
Dingguo Xia
Keyword(s):  
Fuel Cells ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Composite Cathode ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Novel Structure

scholarly journals Carbonate-Based Lanthanum Strontium Cobalt Ferrite (LSCF)–Samarium-Doped Ceria (SDC) Composite Cathode for Low-Temperature Solid Oxide Fuel Cells

2020 ◽  
Vol 10 (11) ◽  
pp. 3761
Author(s):  
Muhammed Ali S.A. ◽  
Jarot Raharjo ◽  
Mustafa Anwar ◽  
Deni Shidqi Khaerudini ◽  
Andanastuti Muchtar ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Composite Cathode ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Composite Electrolyte

Perovskite-based composite cathodes, La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF)–Ce0.8Sm0.2O1.9-carbonate (SDCC), were investigated as cathode materials for low-temperature solid-oxide fuel cells. The LSCF was mixed with the SDC–carbonate (SDCC) composite electrolyte at different weight percentages (i.e., 30, 40, and 50 wt %) to prepare the LSCF–SDCC composite cathode. The effect of SDCC composite electrolyte content on the diffraction pattern, microstructure, specific surface area, and electrochemical performances of the LSCF–SDCC composite cathode were evaluated. The XRD pattern revealed that the SDCC phase diffraction peaks vary according to its increasing addition to the system. The introduction of SDCCs within the composite cathode did not change the LSCF phase structure and its specific surface area. However, the electrical performance of the realized cell drastically changed with the increase of the SDCC content in the LSCF microstructure. This drastic change can be ascribed to the poor in-plane electronic conduction at the surface of the LSCF cathode layer due to the presence of the insulating phase of SDC and molten carbonate. Among the cathodes investigated, LSCF–30SDCC showed the best cell performance, exhibiting a power density value of 60.3–75.4 mW/cm2 at 600 °C to 650 °C.

High performance transition metal oxide composite cathode for low temperature solid oxide fuel cells

2012 ◽  
Vol 203 ◽  
pp. 65-71 ◽  
Author(s):  
Liangdong Fan ◽  
Bin Zhu ◽  
Mingming Chen ◽  
Chengyang Wang ◽  
Rizwan Raza ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Low Temperature ◽  
Transition Metal ◽  
Metal Oxide ◽  
Solid Oxide Fuel Cells ◽  
High Performance ◽  
Composite Cathode ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Oxide Composite

Nanointegrated, High-Performing Cobalt-Free Bismuth-Based Composite Cathode for Low-Temperature Solid Oxide Fuel Cells

2018 ◽  
Vol 10 (34) ◽  
pp. 28635-28643 ◽  
Author(s):  
Yi-Lin Huang ◽  
A. Mohammed Hussain ◽  
Ian A. Robinson ◽  
Eric D. Wachsman
Keyword(s):  
Fuel Cells ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Composite Cathode ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
High Performing

scholarly journals A novel in situ diffusion strategy to fabricate high performance cathodes for low temperature proton-conducting solid oxide fuel cells

2018 ◽  
Vol 6 (22) ◽  
pp. 10411-10420 ◽  
Author(s):  
Jie Hou ◽  
Lina Miao ◽  
Jianing Hui ◽  
Lei Bi ◽  
Wei Liu ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
High Performance ◽  
Composite Cathode ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Proton Conducting ◽  
In Situ Diffusion

A novel in situ Pr diffusion strategy based on a Sm0.2Ce0.8O2−δ–Pr(Pr0.5Ba1.5)Cu3O7−δ (3 : 7 wt%) compound is developed to achieve a perovskite-related proton-blocking composite cathode Ce1−xPrxO2−δ–Ba2CeCu3O7.4–Sm2Ba1.33Ce0.67Cu3O9–CuO for BaZr0.1Ce0.7Y0.2O3−δ-based proton-conducting SOFCs.

Strain Effects on Oxygen Reduction Activity of Pr2NiO4 Caused by Gold Bulk Dispersion for Low Temperature Solid Oxide Fuel Cells

2019 ◽  
Vol 2 (2) ◽  
pp. 1210-1220 ◽  
Author(s):  
Sun Jae Kim ◽  
Taner Akbay ◽  
Junko Matsuda ◽  
Atsushi Takagaki ◽  
Tatsumi Ishihara
Keyword(s):  
Fuel Cells ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Oxygen Reduction ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Strain Effects ◽  
Reduction Activity

scholarly journals A Bulk-Heterostructure Nanocomposite Electrolyte of Ce0.8Sm0.2O2-δ–SrTiO3 for Low-Temperature Solid Oxide Fuel Cells

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Yixiao Cai ◽  
Yang Chen ◽  
Muhammad Akbar ◽  
Bin Jin ◽  
Zhengwen Tu ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Ionic Conductivity ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Short Circuit ◽  
Solid Oxide ◽  
Superior Performance ◽  
Electrode Polarization ◽  
Oxide Fuel ◽  
Ac Impedance Analysis

AbstractSince colossal ionic conductivity was detected in the planar heterostructures consisting of fluorite and perovskite, heterostructures have drawn great research interest as potential electrolytes for solid oxide fuel cells (SOFCs). However, so far, the practical uses of such promising material have failed to materialize in SOFCs due to the short circuit risk caused by SrTiO3. In this study, a series of fluorite/perovskite heterostructures made of Sm-doped CeO2 and SrTiO3 (SDC–STO) are developed in a new bulk-heterostructure form and evaluated as electrolytes. The prepared cells exhibit a peak power density of 892 mW cm−2 along with open circuit voltage of 1.1 V at 550 °C for the optimal composition of 4SDC–6STO. Further electrical studies reveal a high ionic conductivity of 0.05–0.14 S cm−1 at 450–550 °C, which shows remarkable enhancement compared to that of simplex SDC. Via AC impedance analysis, it has been shown that the small grain-boundary and electrode polarization resistances play the major roles in resulting in the superior performance. Furthermore, a Schottky junction effect is proposed by considering the work functions and electronic affinities to interpret the avoidance of short circuit in the SDC–STO cell. Our findings thus indicate a new insight to design electrolytes for low-temperature SOFCs.

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