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Yuan Zhang
Center for Advanced Materials
ChemistryHollow fiber membraneMembraneChromatographyCathode
17Publications
12H-index
663Citations
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Publications 23
Newest
#1Hongxia GuH-Index: 12
#2Jaka SunarsoH-Index: 33
Last. Zongping ShaoH-Index: 69
view all 10 authors...
Minor amount of CO2 in air usually causes detrimental effect on the oxygen activation over solid oxide fuel cell (SOFC) cathode because insulating surface carbonate is easily formed which inhibits charge transfer during oxygen reduction reaction (ORR). In this study, we report the detrimental effect due to the CO2 interaction with perovskite oxide can be turned into beneficial effect for facilitating ORR through tailoring the materials composition of perovskite. More specifically, for a cobalt-f...
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#1Heping Xie (Sichuan University)H-Index: 2
#2Shuo Zhai (Sichuan University)
Last. Zongping ShaoH-Index: 69
view all 7 authors...
Abstract Hybrid direct coal fuel cells (HDCFCs) have the potential to convert coal into electrical power in a clean and efficient manner. However, the related coal pretreatment method and the anode activity should both be improved, before the HDCFCs could match the performance of other direct coal fuel cells such as those based on solid oxide. In this study, we pyrolysed bituminous coal at 800 °C followed by modification with acetic acid, in order to remove organic volatiles and reintroduce surf...
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#1Yufei SongH-Index: 3
#2Yubo Chen (NTU: Nanyang Technological University)H-Index: 21
Last. Zongping Shao (Colorado School of Mines)H-Index: 69
view all 9 authors...
An ideal solid oxide fuel cell (SOFC) cathode should meet multiple requirements, i.e., high activity for oxygen reduction reaction (ORR), good conductivity, favorable stability, and sound thermo-mechanical/chemical compatibility with electrolyte, while it is very challenging to achieve all these requirements based on a single-phase material. Herein, a cost-effective multi-phase nanocomposite, facilely synthesized through smart self-assembly at high temperature, is developed as a near-ideal catho...
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#1Haoran Xu (PolyU: Hong Kong Polytechnic University)H-Index: 13
#2Bin Chen (PolyU: Hong Kong Polytechnic University)H-Index: 13
Last. Meng Ni (PolyU: Hong Kong Polytechnic University)H-Index: 37
view all 7 authors...
Abstract All porous solid oxide fuel cells adopt a porous electrolyte to resist coking caused by hydrocarbon fuels such as methane. With O2 molecules coming from the cathode, chemical oxidation reactions occur at the anode, competing with the electrochemical oxidations with O2− ions. These reactions release a lot of heat, thus significantly affects the cell's power density and fuel efficiency. In this paper, we developed a 2D thermal-electrochemical model to study its thermal effects. After mode...
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#1Bin Chen (PolyU: Hong Kong Polytechnic University)H-Index: 13
#2Haoran Xu (PolyU: Hong Kong Polytechnic University)H-Index: 13
Last. Meng Ni (PolyU: Hong Kong Polytechnic University)H-Index: 37
view all 7 authors...
Abstract Methane and carbon dioxide mixture can be used as the fuel in a proton conducting solid oxide fuel cell (SOFC) for power/syngas co-generation and greenhouse gas reduction. However, carbon deposition and low conversion ratio are potential problems for this technology. Apart from using functional catalytic layer in the SOFC to enhance CH4 dry reforming, adding H2O into the fuel stream could facilitate the CH4 conversion and enhance the co-generation performance of the SOFC. In this work, ...
2 CitationsSource
#1Bin Chen (PolyU: Hong Kong Polytechnic University)H-Index: 13
#2Haoran Xu (PolyU: Hong Kong Polytechnic University)H-Index: 13
Last. Meng Ni (PolyU: Hong Kong Polytechnic University)H-Index: 37
view all 8 authors...
Abstract A 2D thermal model is developed to investigate an ethanol-fuelled Solid Oxide Fuel Cells (E-SOFC) with a Ni-ZrO2/CeO2 functional layer for internal reforming of ethanol. The catalytic kinetics of the functional layer used in this model is validated in terms of ethanol conversion and product selectivity in the experimental data of a fixed-bed testing reactor. The simulated E-SOFC demonstrates a typical performance of 4385.6 A m−2 at 0.6 V, corresponding to a power density of 2631.4 W m−2...
3 CitationsSource
#1Binbin Gu (Center for Advanced Materials)H-Index: 2
#2Jaka Sunarso (Swinburne University of Technology)H-Index: 33
Last. Zongping Shao (Curtin University)H-Index: 69
view all 7 authors...
CO2-resistant perovskite cathode has a significant role in solid oxide fuel cell (SOFC) application particularly for operation in an air atmosphere contains higher than normal amount of CO2 such as in single-chamber SOFC (SC-SOFC). This work features a systematic study of the electrochemical performance of SrCo(0.8)Nb(0.1)Tac(0.1)O(3-delta) (SCNT)-Ce0.9Gd0.1O2-delta (GDC) composite cathode under CO2 exposure for SOFC operation in low-temperature (LT, 500 degrees C and below) and intermediate-tem...
4 CitationsSource
#1Yuan Zhang (Center for Advanced Materials)H-Index: 12
#2Xuechao Gao (Center for Advanced Materials)H-Index: 1
Last. Zongping Shao (Curtin University)H-Index: 69
view all 7 authors...
The single-chamber solid oxide fuel cell (SC-SOFC) represents an attractive alternative to batteries for micropower applications given its simplified stack design, easy gas management, lower operation temperature, and quicker start-up. Its stable operation over long duration relies on the availability of CO2-resistant cathode materials with high oxygen reduction reaction (ORR) activity. Here, we reported a novel perovskite oxide cathode SrSc0.075Ta0.025Fe0.9O3−δ (SSTF75), which provides CO2 resi...
1 CitationsSource
#1Bo Liu (Center for Advanced Materials)H-Index: 5
#2Jaka Sunarso (Swinburne University of Technology)H-Index: 33
Last. Zongping Shao (UWA: University of Western Australia)H-Index: 69
view all 6 authors...
Lowering the operating temperature of solid oxide fuel cells (SOFCs) is highly desirable to reduce the cost and increase the lifetime, which relies upon the development of a cathode component with high oxygen reduction reaction (ORR) activity at a lower temperature. Herein, we report the characterization of high-performance BaScxCo1-xO3- (x=0, 0.125, 0.25, and 0.375) perovskite SOFC cathodes. Unlike BaCoO3-, which adopts 2H-hexagonal perovskite structure, the replacement of 25mol% of Co with Sc ...
3 CitationsSource
#1Yuan Zhang (Center for Advanced Materials)H-Index: 12
#2Ruth Knibbe (UQ: University of Queensland)H-Index: 15
Last. Zhonghua Zhu (UQ: University of Queensland)H-Index: 59
view all 7 authors...
3 CitationsSource
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