Abstract
Electrocatalysts with the advantages of stability, high efficiency, and noble-metal-free features are in urgent need for water splitting. Herein, for the first time, based on the interface engineering, a novel BNNS@Ti3C2 intercalation electrocatalyst was prepared via a controllable synthesis strategy. The rich active sites of Ti3C2 were better protected as well as were able to serve as a bridge to connect the different layers of BNNS. Furthermore, combining the first-principles calculations, the nature of the interface proved the transformation from semiconducting properties to metallicity in this unique intercalation structure. The as-obtained composite possessed improved conductivity and abundant catalytic active sites, exhibiting a low onset potential of 23 mV and overpotential of 52 mV (vs. RHE) at 10 mA cm-2 with outstanding stability. BNNS@Ti3C2 was used as an electrocatalyst for the first time without noble-metal assistance. This study demonstrates that the layered materials can serve as a promising electrocatalyst by interfacing with the intercalation structure.
Original language | English (US) |
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Pages (from-to) | 8613-8619 |
Number of pages | 7 |
Journal | New Journal of Chemistry |
Volume | 43 |
Issue number | 22 |
DOIs | |
State | Published - 2019 |
Bibliographical note
Funding Information:This work is supported by the National Natural Science Foundation of China (Contract No. 51572153, 51602177), the Major Basic Program of the Natural Science Foundation of Shandong Province (Contract No. ZR2017ZB0317), Natural Science Foundation of Shandong (Grant No. ZR2014HM023) and Taishan Scholars Program of Shandong Province.
Publisher Copyright:
© 2019 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.
ASJC Scopus subject areas
- Catalysis
- General Chemistry
- Materials Chemistry