التفاصيل البيبلوغرافية
| العنوان: |
A universal and scalable transformation of bulk metals into single-atom catalysts in ionic liquids. |
| المؤلفون: |
Shujuan Wang, Minghui Lu, Xuewen Xia, Fei Wang, Xiaolu Xiong, Kai Ding, Zhongya Pang, Guangshi Li, Qian Xu, Hsien-Yi Hsu, Shen Hu, Li Ji, Yufeng Zhao, Jing Wang, Xingli Zou, Xionggang Lu |
| المصدر: |
Proceedings of the National Academy of Sciences of the United States of America; 3/5/2024, Vol. 121 Issue 10, p1-11, 104p |
| مصطلحات موضوعية: |
OXYGEN evolution reactions, METAL catalysts, HYDROGEN evolution reactions, IONIC liquids, ENERGY conversion |
| مستخلص: |
Single-atom catalysts (SACs) with maximized metal atom utilization and intriguing properties are of utmost importance for energy conversion and catalysis science. However, the lack of a straightforward and scalable synthesis strategy of SACs on diverse support materials remains the bottleneck for their large-scale industrial applications. Herein, we report a general approach to directly transform bulk metals into single atoms through the precise control of the electrodissolution--electrodeposition kinetics in ionic liquids and demonstrate the successful applicability of up to twenty different monometallic SACs and one multimetallic SAC with five distinct elements. As a case study, the atomically dispersed Pt was electrodeposited onto Ni3N/Ni-Co-graphene oxide heterostructures in varied scales (up to 5 cm x 5 cm) as bifunctional catalysts with the electronic metal--support interaction, which exhibits low overpotentials at 10 mA cm-2 for hydrogen evolution reaction (HER, 30 mV) and oxygen evolution reaction (OER, 263 mV) with a relatively low Pt loading (0.98 wt%). This work provides a simple and practical route for large-scale synthesis of various SACs with favorable catalytic properties on diversified supports using alternative ionic liquids and inspires the methodology on precise synthesis of multimetallic single-atom materials with tunable compositions. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
