scholarly journals Features of Electrophoretic Deposition of a Ba-Containing Thin-Film Proton-Conducting Electrolyte on a Porous Cathode Substrate

2020 ◽  
Vol 10 (18) ◽  
pp. 6535
Author(s):  
Elena Kalinina ◽  
Alexander Kolchugin ◽  
Kirill Shubin ◽  
Andrei Farlenkov ◽  
Elena Pikalova
Keyword(s):  
Solid Oxide Fuel Cells ◽  
Electrophoretic Deposition ◽  
Nominal Composition ◽  
Electrolyte Layer ◽  
Proton Conducting ◽  
Porous Cathode ◽  
Cathode Substrate ◽  
Deposited Film ◽  
Nominal Amount ◽  
Film Weight

This paper presents the study of electrophoretic deposition (EPD) of a proton-conducting electrolyte of BaCe0.89Gd0.1Cu0.01O3-δ (BCGCuO) on porous cathode substrates of LaNi0.6Fe0.4O3−δ (LNFO) and La1.7Ba0.3NiO4+δ (LBNO). EPD kinetics was studied in the process of deposition of both a LBNO sublayer on the porous LNFO substrate and a BCGCuO electrolyte layer. Addition of iodine was shown to significantly increase the deposited film weight and decrease the number of EPD cycles. During the deposition on the LNFO cathode, Ba preservation in the electrolyte layer after sintering at 1450 °C was achieved only with a film thickness greater than 20 μm. The presence of a thin LBNO sublayer (10 μm) did not have a pronounced effect on the preservation of Ba in the electrolyte layer. When using the bulk LBNO cathode substrate as a Ba source, Ba was retained in a nominal amount in the BCGCuO film with a thickness of 10 μm. The film obtained on the bulk LBNO substrate, being in composition close to the nominal composition of the BCGCuO electrolyte, possessed the highest electrical conductivity among the films deposited on the various cathode substrates. The technology developed is a base step in the adaptation of the EPD method for fabrication of cathode-supported Solid Oxide Fuel Cells (SOFCs) with dense barium-containing electrolyte films while maintaining their nominal composition and functional characteristics.

Cyclic electrophoretic deposition of electrolyte thin-films on the porous cathode substrate utilizing stable suspensions of nanopowders

2017 ◽  
Vol 302 ◽  
pp. 126-132 ◽  
Author(s):  
E.G. Kalinina ◽  
E.Yu. Pikalova ◽  
A.A. Kolchugin ◽  
S.M. Pikalov ◽  
A.S. Kaigorodov
Keyword(s):  
Thin Films ◽  
Electrophoretic Deposition ◽  
Porous Cathode ◽  
Cathode Substrate

Infiltrated multiscale porous cathode for proton-conducting solid oxide fuel cells

2011 ◽  
Vol 196 (20) ◽  
pp. 8544-8548 ◽  
Author(s):  
Fei Zhao ◽  
Qiang Liu ◽  
Siwei Wang ◽  
Fanglin Chen
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Proton Conducting ◽  
Porous Cathode

Fabrication of Proton Conducting Solid Oxide Fuel Cells by using Electrophoretic Deposition

2019 ◽  
Vol 25 (2) ◽  
pp. 577-584 ◽  
Author(s):  
Elisabetta Di Bartolomeo ◽  
Milan Zunic ◽  
Laure Chevallier ◽  
Alessandra D'Epifanio ◽  
Silvia Licoccia ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Electrophoretic Deposition ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Proton Conducting

scholarly journals Direct-Hydrocarbon Proton-Conducting Solid Oxide Fuel Cells

2021 ◽  
Vol 13 (9) ◽  
pp. 4736
Author(s):  
Fan Liu ◽  
Chuancheng Duan
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Sulfur Poisoning ◽  
Oxide Fuel ◽  
Power Sources ◽  
Proton Conducting ◽  
Conducting Oxides ◽  
Operating Temperatures ◽  
Ion Conducting

Solid oxide fuel cells (SOFCs) are promising and rugged solid-state power sources that can directly and electrochemically convert the chemical energy into electric power. Direct-hydrocarbon SOFCs eliminate the external reformers; thus, the system is significantly simplified and the capital cost is reduced. SOFCs comprise the cathode, electrolyte, and anode, of which the anode is of paramount importance as its catalytic activity and chemical stability are key to direct-hydrocarbon SOFCs. The conventional SOFC anode is composed of a Ni-based metallic phase that conducts electrons, and an oxygen-ion conducting oxide, such as yttria-stabilized zirconia (YSZ), which exhibits an ionic conductivity of 10−3–10−2 S cm−1 at 700 °C. Although YSZ-based SOFCs are being commercialized, YSZ-Ni anodes are still suffering from carbon deposition (coking) and sulfur poisoning, ensuing performance degradation. Furthermore, the high operating temperatures (>700 °C) also pose challenges to the system compatibility, leading to poor long-term durability. To reduce operating temperatures of SOFCs, intermediate-temperature proton-conducting SOFCs (P-SOFCs) are being developed as alternatives, which give rise to superior power densities, coking and sulfur tolerance, and durability. Due to these advances, there are growing efforts to implement proton-conducting oxides to improve durability of direct-hydrocarbon SOFCs. However, so far, there is no review article that focuses on direct-hydrocarbon P-SOFCs. This concise review aims to first introduce the fundamentals of direct-hydrocarbon P-SOFCs and unique surface properties of proton-conducting oxides, then summarize the most up-to-date achievements as well as current challenges of P-SOFCs. Finally, strategies to overcome those challenges are suggested to advance the development of direct-hydrocarbon SOFCs.

scholarly journals Electrochemical Performances of Proton-Conducting SOFC with La-Sr-Fe-O Cathode Fabricated by Electrophoretic Deposition Techniques

2009 ◽  
Vol 77 (2) ◽  
pp. 143-145 ◽  
Author(s):  
Makiko ASAMOTO ◽  
Shinji MIYAKE ◽  
Yuka YONEI ◽  
Hiroyuki YAMAURA ◽  
Hidenori YAHIRO
Keyword(s):  
Electrophoretic Deposition ◽  
Electrochemical Performances ◽  
Proton Conducting ◽  
Deposition Techniques

Electrophoretic Deposition of Titania Thin Films: Influence of Deposition Time on Microstructural and Optical Properties of the Coatings

2013 ◽  
Vol 829 ◽  
pp. 917-921
Author(s):  
Saber Ghannadi ◽  
Hossein Abdizadeh ◽  
Mohammad Reza Golobostanfard
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Electrophoretic Deposition ◽  
Deposition Time ◽  
Colloidal Suspension ◽  
Vis Spectroscopy ◽  
Titania Films ◽  
Titania Sol ◽  
Deposited Film ◽  
Deposited Films

Titania thin films were prepared by electrophoretic deposition at various deposition times (1, 5 and 10 min) in constant applied potential (5 V). For this purpose, modified titania sol was prepared as a colloidal suspension. The influence of deposition time on the thickness and optical properties of titania films was investigated. Scanning electron microscope images illustrate compact and homogeneous titania films deposited on FTO substrates. The results show that the film thickness increases with increasing the deposition time. It could be inferred from UV-Vis spectroscopy that increasing the thickness of deposited film causes higher absorbance at UV region. Also, increasing the deposition time from 1 to 5 min leads to increase in optical band gap of the deposited films.

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