Metal–Organic Framework-Derived CoOX/Co9S8@NC Nanocomposites Regulated by Oxygen and Sulfur Dual Vacancies as Efficient Trifunctional Electrocatalysts
The slow kinetics of oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) pose important challenges to energy storage. Defect engineering offers an effective strategy to enhance the performance of electrocatalytic materials. In this study, we synthe...
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| Format: | Article |
| Language: | English |
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American Association for the Advancement of Science (AAAS)
2025-01-01
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| Series: | Energy Material Advances |
| Online Access: | https://spj.science.org/doi/10.34133/energymatadv.0206 |
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| author | Yue Peng Pengfei Bi Xu Zhu Peitao Liu Meijing Ren Yanqing Zu Xiaodong Li Ailing Feng |
| author_facet | Yue Peng Pengfei Bi Xu Zhu Peitao Liu Meijing Ren Yanqing Zu Xiaodong Li Ailing Feng |
| author_sort | Yue Peng |
| collection | DOAJ |
| description | The slow kinetics of oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) pose important challenges to energy storage. Defect engineering offers an effective strategy to enhance the performance of electrocatalytic materials. In this study, we synthesized trifunctional catalysts (CoOX/Co9S8@NC) derived from cobalt-based metal–organic frameworks modified with oxygen-sulfur double vacancies. These vacancies improve catalytic activity by increasing active sites and enhancing charge-transfer capacity. The CoOX/Co9S8@NC catalyst demonstrates outstanding ORR and OER bifunctional activity (ΔE = 0.63 V) and HER performance comparable to noble metal catalysts. Liquid zinc-air batteries exhibited superior cycling stability (2,520 cycles at 2 mA/cm2). This defect engineering strategy presents a novel pathway for developing high-performance electrocatalysts and holds important potential for energy-conversion technologies. |
| format | Article |
| id | doaj-art-85e7d671e9ad4abb93f8f2de2ef08127 |
| institution | DOAJ |
| issn | 2692-7640 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | Article |
| series | Energy Material Advances |
| spelling | doaj-art-85e7d671e9ad4abb93f8f2de2ef081272025-08-20T02:46:39ZengAmerican Association for the Advancement of Science (AAAS)Energy Material Advances2692-76402025-01-01610.34133/energymatadv.0206Metal–Organic Framework-Derived CoOX/Co9S8@NC Nanocomposites Regulated by Oxygen and Sulfur Dual Vacancies as Efficient Trifunctional ElectrocatalystsYue Peng0Pengfei Bi1Xu Zhu2Peitao Liu3Meijing Ren4Yanqing Zu5Xiaodong Li6Ailing Feng7Institute of Physics and Optoelectronics Technology, Baoji University of Arts and Sciences, Baoji 721016, China.Institute of Physics and Optoelectronics Technology, Baoji University of Arts and Sciences, Baoji 721016, China.Institute of Physics and Optoelectronics Technology, Baoji University of Arts and Sciences, Baoji 721016, China.Institute of Physics and Optoelectronics Technology, Baoji University of Arts and Sciences, Baoji 721016, China.Institute of Physics and Optoelectronics Technology, Baoji University of Arts and Sciences, Baoji 721016, China.Institute of Physics and Optoelectronics Technology, Baoji University of Arts and Sciences, Baoji 721016, China.Institute of Physics and Optoelectronics Technology, Baoji University of Arts and Sciences, Baoji 721016, China.Institute of Physics and Optoelectronics Technology, Baoji University of Arts and Sciences, Baoji 721016, China.The slow kinetics of oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) pose important challenges to energy storage. Defect engineering offers an effective strategy to enhance the performance of electrocatalytic materials. In this study, we synthesized trifunctional catalysts (CoOX/Co9S8@NC) derived from cobalt-based metal–organic frameworks modified with oxygen-sulfur double vacancies. These vacancies improve catalytic activity by increasing active sites and enhancing charge-transfer capacity. The CoOX/Co9S8@NC catalyst demonstrates outstanding ORR and OER bifunctional activity (ΔE = 0.63 V) and HER performance comparable to noble metal catalysts. Liquid zinc-air batteries exhibited superior cycling stability (2,520 cycles at 2 mA/cm2). This defect engineering strategy presents a novel pathway for developing high-performance electrocatalysts and holds important potential for energy-conversion technologies.https://spj.science.org/doi/10.34133/energymatadv.0206 |
| spellingShingle | Yue Peng Pengfei Bi Xu Zhu Peitao Liu Meijing Ren Yanqing Zu Xiaodong Li Ailing Feng Metal–Organic Framework-Derived CoOX/Co9S8@NC Nanocomposites Regulated by Oxygen and Sulfur Dual Vacancies as Efficient Trifunctional Electrocatalysts Energy Material Advances |
| title | Metal–Organic Framework-Derived CoOX/Co9S8@NC Nanocomposites Regulated by Oxygen and Sulfur Dual Vacancies as Efficient Trifunctional Electrocatalysts |
| title_full | Metal–Organic Framework-Derived CoOX/Co9S8@NC Nanocomposites Regulated by Oxygen and Sulfur Dual Vacancies as Efficient Trifunctional Electrocatalysts |
| title_fullStr | Metal–Organic Framework-Derived CoOX/Co9S8@NC Nanocomposites Regulated by Oxygen and Sulfur Dual Vacancies as Efficient Trifunctional Electrocatalysts |
| title_full_unstemmed | Metal–Organic Framework-Derived CoOX/Co9S8@NC Nanocomposites Regulated by Oxygen and Sulfur Dual Vacancies as Efficient Trifunctional Electrocatalysts |
| title_short | Metal–Organic Framework-Derived CoOX/Co9S8@NC Nanocomposites Regulated by Oxygen and Sulfur Dual Vacancies as Efficient Trifunctional Electrocatalysts |
| title_sort | metal organic framework derived coox co9s8 nc nanocomposites regulated by oxygen and sulfur dual vacancies as efficient trifunctional electrocatalysts |
| url | https://spj.science.org/doi/10.34133/energymatadv.0206 |
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