Influence of Calcination Temperature on Electrochemical Properties of Perovskite Oxide Nanofiber Catalysts
Energy conversion and storage systems have recently attracted significant attention owing to increasing environmental and energy problems. However, the slow kinetics of the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) render their commercialization difficult. Many studies...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-06-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/16/13/4979 |
| _version_ | 1797591799156441088 |
|---|---|
| author | Ji-Woo Park Jeeyoung Shin Young-Wan Ju |
| author_facet | Ji-Woo Park Jeeyoung Shin Young-Wan Ju |
| author_sort | Ji-Woo Park |
| collection | DOAJ |
| description | Energy conversion and storage systems have recently attracted significant attention owing to increasing environmental and energy problems. However, the slow kinetics of the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) render their commercialization difficult. Many studies are being conducted to replace precious metal catalysts that have high activity for the ORR and OER but have scarcity and low stability. In this study, Sm<sub>0.5</sub>Sr<sub>0.5</sub>CoO<sub>3</sub> (SSC) nanofibers were fabricated via the electrospinning of non-precious metal-based perovskite oxides to replace precious metal catalysts. In addition, the properties and electrochemical performance of SSC fibers synthesized at different calcination temperatures were evaluated. The small crystallite size, high specific surface area, abundant oxygen vacancies, and high ORR/OER activity suggest that SSC800 hollow fibers are optimal bifunctional catalysts. |
| first_indexed | 2024-03-11T01:43:29Z |
| format | Article |
| id | doaj.art-e49ca9fefc924e7da07544f7041fc753 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T01:43:29Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-e49ca9fefc924e7da07544f7041fc7532023-11-18T16:28:38ZengMDPI AGEnergies1996-10732023-06-011613497910.3390/en16134979Influence of Calcination Temperature on Electrochemical Properties of Perovskite Oxide Nanofiber CatalystsJi-Woo Park0Jeeyoung Shin1Young-Wan Ju2Department of Chemical Engineering, College of Engineering, Wonkwang University, Iksan 54538, Republic of KoreaDepartment of Mechanical Systems Engineering, Sookmyung Women’s University, Seoul 04310, Republic of KoreaDepartment of Chemical Engineering, College of Engineering, Wonkwang University, Iksan 54538, Republic of KoreaEnergy conversion and storage systems have recently attracted significant attention owing to increasing environmental and energy problems. However, the slow kinetics of the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) render their commercialization difficult. Many studies are being conducted to replace precious metal catalysts that have high activity for the ORR and OER but have scarcity and low stability. In this study, Sm<sub>0.5</sub>Sr<sub>0.5</sub>CoO<sub>3</sub> (SSC) nanofibers were fabricated via the electrospinning of non-precious metal-based perovskite oxides to replace precious metal catalysts. In addition, the properties and electrochemical performance of SSC fibers synthesized at different calcination temperatures were evaluated. The small crystallite size, high specific surface area, abundant oxygen vacancies, and high ORR/OER activity suggest that SSC800 hollow fibers are optimal bifunctional catalysts.https://www.mdpi.com/1996-1073/16/13/4979calcinationelectrospinningoxygen reduction reaction (ORR)oxygen evolution reaction (OER)perovskite oxide |
| spellingShingle | Ji-Woo Park Jeeyoung Shin Young-Wan Ju Influence of Calcination Temperature on Electrochemical Properties of Perovskite Oxide Nanofiber Catalysts Energies calcination electrospinning oxygen reduction reaction (ORR) oxygen evolution reaction (OER) perovskite oxide |
| title | Influence of Calcination Temperature on Electrochemical Properties of Perovskite Oxide Nanofiber Catalysts |
| title_full | Influence of Calcination Temperature on Electrochemical Properties of Perovskite Oxide Nanofiber Catalysts |
| title_fullStr | Influence of Calcination Temperature on Electrochemical Properties of Perovskite Oxide Nanofiber Catalysts |
| title_full_unstemmed | Influence of Calcination Temperature on Electrochemical Properties of Perovskite Oxide Nanofiber Catalysts |
| title_short | Influence of Calcination Temperature on Electrochemical Properties of Perovskite Oxide Nanofiber Catalysts |
| title_sort | influence of calcination temperature on electrochemical properties of perovskite oxide nanofiber catalysts |
| topic | calcination electrospinning oxygen reduction reaction (ORR) oxygen evolution reaction (OER) perovskite oxide |
| url | https://www.mdpi.com/1996-1073/16/13/4979 |
| work_keys_str_mv | AT jiwoopark influenceofcalcinationtemperatureonelectrochemicalpropertiesofperovskiteoxidenanofibercatalysts AT jeeyoungshin influenceofcalcinationtemperatureonelectrochemicalpropertiesofperovskiteoxidenanofibercatalysts AT youngwanju influenceofcalcinationtemperatureonelectrochemicalpropertiesofperovskiteoxidenanofibercatalysts |