A Zn-based catalyst with high oxygen reduction activity and anti-poisoning property for stable seawater batteries
| العنوان: | A Zn-based catalyst with high oxygen reduction activity and anti-poisoning property for stable seawater batteries |
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| المؤلفون: | Yingxin Liu, Xin Jiang, Li Wang, Rongwei Meng, Quanjun Tang, Yong Guo, Zishan Han, Guowei Ling, Chen Zhang, Quan-Hong Yang |
| المصدر: | The Journal of Chemical Physics. 158:141101 |
| بيانات النشر: | AIP Publishing, 2023. |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | General Physics and Astronomy, Physical and Theoretical Chemistry |
| الوصف: | Seawater batteries (SWBs) are a key part of the future underwater energy network for maritime safety and resource development due to their high safety, long lifespan, and eco-friendly nature. However, the complicated seawater composition and pollution, such as the S2−, usually poison the catalyst and lead to the degradation of the battery performance. Here, Zn single-atom catalysts (SACs) were demonstrated as effective oxygen reduction reaction catalysts with high anti-poisoning properties by density functional theory calculation and the Zn SACs anchoring on an N, P-doped carbon substrate (Zn-SAC@PNC) was synthesized by a one-pot strategy. Zinc active sites ensure the anti-poisoning property toward S2−, and N, P-doped carbon helps improve the activity. Therefore, Zn-SAC@PNC exhibits superior activity (E1/2: 0.87 V, Tafel slope: 69.5 mV dec−1) compared with Pt/C and shows a lower decay rate of the voltage after discharge in lean-oxygen natural seawater. In the presence of S2−, Zn-SAC@PNC can still maintain its original catalytic activity, which ensures the stable operation of SWBs in the marine environment with sulfur-based pollutants. This study provides a new strategy to design and develop efficient cathode materials for SWBs. |
| تدمد: | 1089-7690 0021-9606 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::0a0385ef82192931e535e338f659c120 https://doi.org/10.1063/5.0142794 |
| رقم الأكسشن: | edsair.doi...........0a0385ef82192931e535e338f659c120 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Scitation. | تدمد: | 10897690 00219606 |
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