Journal
NANO RESEARCH
Volume 15, Issue 5, Pages 3964-3970Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-022-4081-4
Keywords
S incorporation; RuCu nanoring; stable; acidic; oxygen evolution reaction
Categories
Funding
- National Key R&D Program of China [2017YFA0208200, 2016YFA0204100]
- National Natural Science Foundation of China [22025108, 51802206]
- Guangdong Provincial Natural Science Fund for Distinguished Young Scholars [2021B1515020081]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Xiamen University
- Guangzhou Key Laboratory of Low Dimensional Materials and Energy Storage Devices [20195010002]
- National Synchrotron Radiation Research Center (NSRRC)
- Shanghai Synchrotron Radiation Facility (SSRF), China
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This study demonstrates that incorporating S into RuCuO nanorings (NRs) can significantly enhance the performance of acidic oxygen evolution reaction (OER). The optimized catalyst (S-H-RuCuO NRs) exhibits superior OER performance and enhanced stability, highlighting a potential strategy for designing active and stable RuO2-based electrocatalysts for acidic OER.
The design of highly active and stable RuO2-based nanostructures for acidic oxygen evolution reaction (OER) is extremely important for the development of water electrolysis technology, yet remains great challenges. We here demonstrate that the incorporation of S into RuCuO nanorings (NRs) can significantly enhance the acidic OER performance. Experimental investigations show that the incorporation of S can optimize the interaction of Ru and O, and therefore significantly suppresses the dissolution of Ru in acidic condition. The optimized catalyst (S-H-RuCuO NRs) displays superior OER performance to the commercial RuO2/C. Impressively, the S-H-RuCuO NRs can exhibit significantly enhanced stability for 3,000 cycles of cyclic voltammetry test and more than 250 h chronopotentiometry test at 10 mA.cm(-2) in 0.5 M H2SO4. This work highlights a potential strategy for designing active and stable RuO2-based electrocatalysts for acidic OER.
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