1
|
Setevich C, Larrondo S. 3D resistor-network modeling of infiltrated SOFC electrodes. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
2
|
Developing an Automated Tool for Quantitative Analysis of the Deconvoluted Electrochemical Impedance Response of a Solid Oxide Fuel Cell. ENERGIES 2022. [DOI: 10.3390/en15103702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Despite being commercially available, solid oxide fuel cell (SOFC) technology requires further study to understand its physicochemical processes for diagnostics, prognostics, and quality assurance purposes. Electrochemical impedance spectroscopy (EIS), a widely used characterization technique for SOFCs, is often accompanied by the distribution of relaxation times (DRT) as a method for deconvoluting the contribution of each physicochemical process from the aggregated impedance response spectra. While EIS yields valuable information for the operation of SOFCs, the quantitative analysis of the DRT and its shifts remains cumbersome. To address this issue, and to create a replicable benchmark for the assessment of DRT results, a custom tool was developed in MATLAB to numerically analyze the DRT spectra, identify the DRT peaks, and assess their deviation in terms of peak frequency and DRT amplitude from nominal operating conditions. The preliminary validation of the tool was carried out by applying the tool to an extensive experimental campaign on 23 SOFC button-sized samples from three production batches in which EIS measurements were performed in parametric operating conditions. It was concluded that the results of the automated analysis via the developed tool were in accordance with the qualitative analysis of previous studies. It is capable of providing adequate additional quantitative results in terms of DRT shifts for further analysis and provides the basis for better interoperability of DRT analyses between laboratories.
Collapse
|
3
|
Plasma-Enhanced Atomic Layer Deposition of Zirconium Oxide Thin Films and Its Application to Solid Oxide Fuel Cells. COATINGS 2021. [DOI: 10.3390/coatings11030362] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Zirconium oxides were deposited using plasma-enhanced atomic layer deposition (PEALD) involving (2-(N-methylamino)1-MethylEthyleneCyclopentadienyl)Bis(DiMethylAmino)Zr (abbreviated as CMEN-Zr) and oxygen plasma as zirconium and oxygen sources. The zirconium oxide thin films demonstrate temperature-independent growth rates per cycle of 0.94 A/cycle at 150–215 °C. The deposited ZrO2 thin films were characterized using numerous analytical tools, i.e., X-ray photoelectron spectroscopy for chemical bonding state and composition, X-ray diffraction for crystallinity, atomic force microscopy for surface morphology, field-emission scanning electron microscopy for cross-sectional analysis, spectroscopic ellipsometry and UV–visible spectrophotometry for optical characterization, capacitance–voltage measurements for dielectric constants and atomic defects, and current–voltage characteristics for electrical information. The insulating features of the crystalline and stoichiometric ZrO2 films were implemented in the anode composites to evaluate the influence of ALD-based nano-features on the electrochemical performance of solid oxide fuel cells, with the main emphasis on anode performance. The presence of nanomaterials on Ni/YSZ anode composites is analyzed to determine the negative effects on electrochemical performance and the degradation of cell performance of solid oxide fuel cells (SOFCs). The artificial design was proven to be effective in controlling the cell performance as long as proper material design was adopted in SOFC electrodes.
Collapse
|
4
|
Naeini M, Lai H, Cotton JS, Adams TA. A Mathematical Model for Prediction of Long-Term Degradation Effects in Solid Oxide Fuel Cells. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c05302] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mina Naeini
- Department of Chemical Engineering, McMaster University, Hamilton, ON L8S 4L7, Canada
| | - Haoxiang Lai
- Department of Chemical Engineering, McMaster University, Hamilton, ON L8S 4L7, Canada
| | - James S. Cotton
- Department of Mechanical Engineering, McMaster University, Hamilton, ON L8S 4L7, Canada
| | - Thomas A. Adams
- Department of Chemical Engineering, McMaster University, Hamilton, ON L8S 4L7, Canada
| |
Collapse
|
5
|
Kuimov VM, Khaliullina AS, Pankratov AA, Antonov BD, Dunyushkina LA. Synthesis and Conductivity of CaZr0.9Y0.1O3–δ Electrolyte Films on Supporting Composite Electrodes. RUSS J ELECTROCHEM+ 2018. [DOI: 10.1134/s1023193518020052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
6
|
Simulation of electrochemical processes during oxygen evolution on Pb-MnO2 composite electrodes. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.04.131] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
7
|
Kim S, Jun A, Kwon O, Kim J, Yoo S, Jeong HY, Shin J, Kim G. Nanostructured Double Perovskite Cathode With Low Sintering Temperature For Intermediate Temperature Solid Oxide Fuel Cells. CHEMSUSCHEM 2015; 8:3153-3158. [PMID: 26227300 DOI: 10.1002/cssc.201500509] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 05/12/2015] [Indexed: 06/04/2023]
Abstract
This study focuses on reducing the cathode polarization resistance through the use of mixed ionic electronic conductors and the optimization of cathode microstructure to increase the number of electrochemically active sites. Among the available mixed ionic electronic conductors (MIECs), the layered perovskite GdBa0.5 Sr0.5 CoFeO5+δ (GBSCF) was chosen as a cathode material for intermediate temperature solid oxide fuel cells owing to its excellent electrochemical performance and structural stability. The optimized microstructure of a GBSCF-yttria-stabilized zirconia (YSZ) composite cathode was prepared through an infiltration method with careful control of the sintering temperature to achieve high surface area, adequate porosity, and well-organized connection between nanosized particles to transfer electrons. A symmetric cell shows outstanding results, with the cathode exhibiting an area-specific resistance of 0.006 Ω cm(2) at 700 °C. The maximum power density of a single cell using Ce-Pd anode with a thickness of ∼80 μm electrolyte was ∼0.6 W cm(-2) at 700 °C.
Collapse
Affiliation(s)
- Seona Kim
- Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 698-798 (South Korea), Fax: (+82) 52-217-2909
| | - Areum Jun
- Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 698-798 (South Korea), Fax: (+82) 52-217-2909
| | - Ohhun Kwon
- Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 698-798 (South Korea), Fax: (+82) 52-217-2909
| | - Junyoung Kim
- Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 698-798 (South Korea), Fax: (+82) 52-217-2909
| | - Seonyoung Yoo
- Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 698-798 (South Korea), Fax: (+82) 52-217-2909
| | - Hu Young Jeong
- UNIST Central Research Facilities, Ulsan National Institute of Science and Technology (UNIST), Ulsan 698-798 (South Korea)
| | - Jeeyoung Shin
- Department of Mechanical Engineering, Dong-Eui University, Busan 614-714 (South Korea), Fax: (+82) 505-182-6891.
| | - Guntae Kim
- Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 698-798 (South Korea), Fax: (+82) 52-217-2909.
| |
Collapse
|
8
|
Eigenbrodt BC, Young AM, Howell TG, Segre CU, Reitz TL. High-Temperature, In Situ X-ray Absorption Study of Sr 2
MgMoO 6
Solid-Oxide Fuel-Cell Anode Materials. ChemElectroChem 2015. [DOI: 10.1002/celc.201500122] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bryan C. Eigenbrodt
- Department of Chemistry; Villanova University, 800 E.; Lancaster Avenue Villanova PA 19085 USA
| | - Anthony M. Young
- Aerospace Systems Directorate; Air Force Research Laboratory, Wright Patterson Air Force Base; OH 45433 USA
| | - Thomas G. Howell
- Aerospace Systems Directorate; Air Force Research Laboratory, Wright Patterson Air Force Base; OH 45433 USA
| | - Carlo U. Segre
- Physics Department and CSRRI; Illinois Institute of Technology; Chicago IL 60616 USA
| | - Thomas L. Reitz
- Aerospace Systems Directorate; Air Force Research Laboratory, Wright Patterson Air Force Base; OH 45433 USA
| |
Collapse
|
9
|
Zhang X, Liu L, Zhao Z, Tu B, Ou D, Cui D, Wei X, Chen X, Cheng M. Enhanced oxygen reduction activity and solid oxide fuel cell performance with a nanoparticles-loaded cathode. NANO LETTERS 2015; 15:1703-1709. [PMID: 25686380 DOI: 10.1021/nl5043566] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Reluctant oxygen-reduction-reaction (ORR) activity has been a long-standing challenge limiting cell performance for solid oxide fuel cells (SOFCs) in both centralized and distributed power applications. We report here that this challenge has been tackled with coloading of (La,Sr)MnO3 (LSM) and Y2O3 stabilized zirconia (YSZ) nanoparticles within a porous YSZ framework. This design dramatically improves ORR activity, enhances fuel cell output (200-300% power improvement), and enables superior stability (no observed degradation within 500 h of operation) from 600 to 800 °C. The improved performance is attributed to the intimate contacts between nanoparticulate YSZ and LSM particles in the three-phase boundaries in the cathode.
Collapse
Affiliation(s)
- Xiaomin Zhang
- Division of Fuel Cells, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, China
| | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Ju J, Chen F, Xia C. Ionic conductivity of impregnated samaria doped ceria for solid oxide fuel cells. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.05.113] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
11
|
|
12
|
|
13
|
Jiang Z, Xia C, Chen F. Nano-structured composite cathodes for intermediate-temperature solid oxide fuel cells via an infiltration/impregnation technique. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2010.02.019] [Citation(s) in RCA: 199] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
14
|
Jiang ZY, Xia CR, Chen FL. Efficient Thickness of Solid Oxide Fuel Cell Composite Electrode. CHINESE J CHEM PHYS 2010. [DOI: 10.1088/1674-0068/23/02/217-225] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
15
|
Abbaspour A, Luo JL, Nandakumar K. Three-dimensional random resistor-network model for solid oxide fuel cell composite electrodes. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2010.02.049] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
16
|
Wu T, Zhao Y, Peng R, Xia C. Nano-sized Sm0.5Sr0.5CoO3−δ as the cathode for solid oxide fuel cells with proton-conducting electrolytes of BaCe0.8Sm0.2O2.9. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2009.04.013] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
17
|
Ding D, Liu Z, Li L, Xia C. An octane-fueled low temperature solid oxide fuel cell with Ru-free anodes. Electrochem commun 2008. [DOI: 10.1016/j.elecom.2008.06.026] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
|
18
|
Solid Oxide Fuel Cell Ni–YSZ Anodes: Effect of Composition on Microstructure and Performance. ACTA ACUST UNITED AC 2008. [DOI: 10.1149/1.2960528] [Citation(s) in RCA: 108] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|