Chapter 7. Energy Reuse: Self-Transforming Configuration Based on Atmospheric-
7.4. Conclusions
10 vol.% H2O, respectively, at a cell voltage of 1.3V at 800 oC. To evaluate the reversibility of operation as SOCs, the cycling between electrolysis mode at -0.2 A cm-2 and fuel cell mode at +0.2 A cm-2 was performed at 700 oC for 3 and 10 vol. % H2O, respectively. At both H2O amount, the cell shows a stable performance in electrolysis and fuel cell modes without detectable degradation (Figure 7-4c). The cell under 10 vol. % H2O maintained the constant voltages in both electrolysis and fuel cell modes for 30 h (Figure 7-4d). After reversible cycling for 6 h, the cell under 3 vol. % H2O was operated under SOFC modes with 3 vol. % H2O without any critical degradation during
~100 h (Figure 7-4e).
Supporting Information
The supporting information will be provided on website.
Reproduced with permission from S. Kim et al., Self-Transforming Configuration Based on Atmospheric-Adaptive Materials for Solid Oxide Cells, Scientific Reports, 8, 17149 (2018).
Springer Nature. DOI: 10.1038/s41598-018-35659-y
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List of Publications
1. Seona Kim, Sihyuk Choi, Areum Jun, Jeeyoung Shin*, Guntae Kim*
"Scale-down and Sr-doping effects on La4Ni3O10-δ-YSZ nanocomposite cathodes for IT-SOFCs"
Journal of the Electrochemical Society (2014) DOI: 10.1149/2.0791414jes
2. Seona Kim, Areum Jun, Ohhun Kwon, Junyoung Kim, Seonyoung Yoo, Hu Young Jeong, Jeeyoung Shin*, Guntae Kim*
"Nanostructured Double Perovskite Cathode with Low Sintering Temperature For Intermediate Temperature Solid Oxide Fuel Cells" ChemSusChem (2015) DOI: 10.1002/cssc.201500509
3. Young-Wan Ju†, Seonyoung Yoo†, Changmin Kim, Seona Kim, In-Yup Jeon, Jeeyoung Shin, Jong- Beom Baek*, Guntae Kim*
"Fe@N-Graphene Nanoplatelet-Embedded Carbon Nanofibers as Efficient Electrocatalysts for Oxygen Reduction Reaction" (Back Cover)
Advanced Science (2015) DOI: 10.1002/advs.201500205
4. Seona Kim, Chanseok Kim, Jun Hee Lee, Jeeyoung Shin, Tak-Hyoung Lim*, Guntae Kim*
"Tailoring Ni-based catalyst by alloying with transition metals (M=Ni, Co, Cu, and Fe) for direct hydrocarbon utilization of energy conversion devices"
Electrochimica Acta (2016) DOI: 10.1016/j.electacta.2016.12.178
5. Yunfei Bu†, Ohhun Gwon†, Gyutae Nam, Haeseong Jang, Seona Kim, Qin Zhong, Jaephil Cho*, Guntae Kim*,
"A Highly Efficient and Robust Cation Ordered Perovskite Oxides as a Bi-Functional Catalyst for Rechargeable Zinc-Air Batteries"
ACS Nano (2017) DOI: 10.1021/acsnano.7b06595
6. Seona Kim, Ohhun Kwon, Changmin Kim, Ohhun Gwon, Hu Young Jeong, Ka-Hyun Kim*, Jeeyoung Shin*, and Guntae Kim*
"Strategy for Enhancing Interfacial Effect of Bifunctional Electrocatalyst: Infiltration of Cobalt Nano Oxide on Perovskite" (Back Cover)
Advanced Materials Interfaces (2018) DOI: 10.1002/admi.201800123
7. Yunfei Bu, Gyutae Nam, Seona Kim, Chanseok Kim, Qin Zhong, JunHee Lee, Yong Qin, Jaephil Cho*, and Guntae Kim*
"A tailored bifunctional electrocatalyst: Boosting oxygen reduction/evolution catalysis via electron transfer between n-doped graphene and perovskite oxides" (Front Cover)
Small (2018) DOI: 10.1002/smll.201802767
8. Seona Kim †, Changmin Kim †, Ohhun Kwon, Jeongwon Kim, and Guntae Kim*
"Polypyrrole-assisted Co3O4 anchored carbon fiber as a binder-free electrode for seawater batteries"
(Cover Features)
ChemElectroChem (2019) DOI: 10.1002/celc.201801219
9. Arim Seong, Junyoung Kim, Seona Kim, Sivaprakash Sengodan*, Jeeyoung Shin*, and Guntae Kim*
"Influence of Cathode Porosity on High Performance Protonic Ceramic Fuel Cells with PrBa0.5Sr0.5Co1.5Fe0.5O5-δ Cathode "
Journal of the Electrochemical Society (2018) DOI: 10.1149/2.0821813jes 10. Seona Kim, Seungtae Lee, Junyoung Kim, Jeeyoung Shin*, and Guntae Kim*
"Self-Transforming configuration based on the atmospheric-adaptive materials for solid oxide cells"
Scientific Reports (2018) DOI: 10.1038/s41598-018-35659-y
11. Yunfei Bu, Haeseong Jang, Ohhun Gwon, Su Hwan Kim, Se Hun Joo, Gyutae Nam, Seona Kim, Yong Qin, Qin Zhong, Sangkyu Kwak*, Jaephil Cho*, and Guntae Kim*
"Synergistic interaction of perovskite oxides and N-doped graphene in versatile electrocatalyst"
Journal of Materials Chemistry A (2018) DOI: 10.1039/c8ta09919g