High-temperature electrochemical devices based on dense ceramic membranes for CO2 conversion and utilization University of Alberta | Publication | 2021-09-01 | Wenping Li, Luo, J. |
Advancing perovskite oxides as efficient catalysts for energy storage and conversion University of Alberta | Activity | 2018-08-13 | Bin Hua, Meng Li, Luo, J. |
Alternative fuel cell technologies for cogenerating electrical power and syngas from greenhouse gases University of Alberta | Activity | 2018-05-08 | Meng Li, Bin Hua, Luo, J. |
Ce-doped La1-xSrxCr1-yFeyO3 Cathode Catalyst for SOEC CO2 ConversionPost Presentation prepared for Conference meeting 2018. University of Alberta | Activity | 2018-08-13 | Shaochen Ding, Meng Li, Luo, J. |
Developing perovskite-based electrocatalysts for efficient energy storage and conversion University of Alberta | Activity | 2017-07-27 | Bin Hua, "Ya-Qian Zhang", Meng Li, Luo, J. |
Infiltration of Ce-doped LaSrCrFeO Cathode CatalystPoster presentation prepared for FEGRS 2018. University of Alberta | Activity | 2018-07-03 | Shaochen Ding, Meng Li, Luo, J. |
Novel Perovskite Catalyst for Enhanced Oxygen/Hydrogen Evolution Reactions University of Alberta | Activity | 2018-05-08 | Bin Hua, Meng Li, Luo, J. |
Pulsed Laser Deposition of Novel Perovskite Thin Films for Advanced Electrochemical Systems Pulsed Laser Deposition of Novel Perovskite Thin Films for Advanced
Electrochemical Systems, COLA 2019, Hawaii, USA, SEp 2019
Dhanvini Gudi1, Dipanjan Nandi1, Haris Ansari2, Hui Yuan3,
Gianluigi Botton3, Viola Birss2, Manisha Gupta1
1University of Alberta,Edmonton,Alberta, Canada, 2 University of Calgary,
Calgary, Alberta, Canada, 3 Canadian Centre for Electron Microscopy (CCEM),
McMaster University, Hamilton, Ontario, Canada. | Activity | 2019-09-04 | Dhanvini Gudi, Dipanjan Nandi, "Haris Ansari", "Hui Yan", "Gianluigi Botton", Viola Birss, Manisha Gupta |
Smart Controls of Architecture and Composition toward High Performance Electrocatalysts for Energy Storage University of Alberta | Activity | 2017-10-13 | Bin Hua, "Ya-Qian Zhang", Meng Li, Luo, J. |
Hydrocarbon Adsorption Characteristics and Absolute Adsorption Estimation in Shale Nanoporous Media from Statistical Thermodynamics Approaches | Publication | 2021-09-01 | Wanying Pang |
Phase Behavior, Adsorption Behavior and Interfacial Properties of Fluids in Shale Reservoirs | Publication | 2024-08-12 | Yueliang Liu |
Advance Microstructure Optimization Strategies for High-Temperature CO2 Electrolysis: Infiltration and In-situ ExsolutionThe solid oxide electrolysis cell (SOEC) has attracted increased attention in recent years due to its capability to reduce CO2 emissions in a highly efficient and environmentally sustainable fashion. Previous work in our group has fabricated an A-site Ce doped La0.7Sr0.3Cr0.5Fe0.5O3- (LSCeCrF) with gadolinium doped ceria (GDC) as the cathode material in SOEC by the conventional method. This material presents a satisfying electrochemical performance and good stability due to the presence of excessive oxygen vacancies, and thus the strong CO2 adsorption ability. However, the electrochemical catalytic activity is still limited by the catalyst specific area. Hence, the optimization of electrode microstructure is considered as a promising way to further improve the SOEC performance by increasing the active reaction area.
In this thesis, LSCeCrF and GDC composite cathode was firstly fabricated by infiltration method, and the results were compared with one from our previous study that used the conventional fabrication method. It is evident that the infiltration method can effectively improve electrochemical performance of SOEC with optimized microstructure of the cathode.
Secondly, to further improve the catalytic activity for CO2 conversion, (La0.65Sr0.3Ce0.05)0.9(Cr0.5Fe0.5)0.85Ni0.15O3- (Ni-LSCeCrF)/GDC nanostructured cathode was fabricated by infiltration and in situ exsolution of highly active Ni-Fe alloy nanoparticles.
The effects of electrode microstructure optimization on the electrochemical performance were investigated in the atmospheres of pure CO2, and mixture of CO2 and CO (CO2 mole fraction as 0.7). The Ni-LSCeCrF/GDC cathode shows significantly improved electrochemical performance, CO production rate, and Faraday efficiency for CO2 reduction in both atmospheres. Furthermore, collaboration with Ms. Wanying Pang, PhD student supervised by Professor Zhehui Jin, density function theory calculations were carried out to investigate the exsolution trends of transition metals on B-site of a perovskite lattice. The results show that Ni doping could reduce the segregation energy of Fe, revealing an alternative new strategy of multiple elements doping to form active alloy by in situ exsolution. | Publication | 2019-08-30 | Shaochen Ding |
Pulsed Laser Deposition of 2D materials and Complex Perovskites | Publication | 2020-05-01 | Dhanvini Gudi |
A-site deficient perovskite with nano-socketed Ni-Fe alloy particles as highly active and durable catalyst for high-temperature CO 2 electrolysis | Publication | 2020-03-01 | Shaochen Ding, Meng Li, Wanying Pang, Bin Hua, Nanqi Duan, Ya-Qian Zhang, Sheng-Nian Zhang, Zhehui Jin, Jing-Li Luo |
Activating p-Blocking Centers in Perovskite for Efficient Water Splitting University of Alberta | Publication | 2018-12-13 | Bin Hua, Meng Li, Wanying Pang, "Weiqiang Tang", "Shuangliang Zhao", Zhehui Jin, "Yimin Zeng", Babak Shalchi Amirkhiz, Luo, J. |
Charge transfer dynamics in RuO2/perovskite nanohybrid for enhanced electrocatalysis in solid oxide electrolyzers University of Alberta | Publication | 2018-12-14 | Meng Li, Bin Hua, "Jian Chen", "Yiming Zhong", Luo, J. |
High Performance Tubular Solid Oxide Fuel Cell based on Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3-d Proton Conductor ElectrolyteProton conducting electrolytes vs. oxygen ion conducting electrolytes have a major advantage in high temperature fuel cell/electrolysis cells - the fuel is not diluted as the cell is operated since water or CO2 is present at the air side rather than the fuel side. This novel composition was used to fabricate a tubular cell by a combination of slip casting and dip coating. Contrary to virtually all proton conductors, it appears chemically inert to both H2O vapour and CO2 as well as the other cell components. Correspondingly, it gave outstanding electrochemical performance producing a power output of 1 W/cm2 at 850C. This is among the highest output ever reported for a tubular cell with either a proton or oxygen ion conducting electrolyte. Electrochemical impedance spectroscopy was used in an effort to separate the various polarization losses. University of Alberta | Publication | 2018-04-24 | Taghi Amiri, "Kalpana Singh", Amir Hanifi, Thomas Etsell, Luo, J., "Venkataraman Thangadurai", "Partha Sarkar" |
Revisiting Methane Absolute Adsorption in Organic Nanopores from Molecular Simulation and Ono-Kondo Lattice Model | Publication | 2018-07-20 | Wanying Pang, Zhehui Jin |
Thermally stable and coke resistant CoMo alloy-based catalysts as fuel electrodes for solid oxide electrochemical cells University of Alberta | Publication | 2018-07-14 | Meng Li, Bin Hua, "Yimin Zeng", Babak Shalchi Amirkhiz, Luo, J. |