Multiple Metal–Nitrogen Bonds Synergistically Boosting the Activity and Durability of High-Entropy Alloy Electrocatalysts
Brookhaven National Laboratory · Hong Kong Polytechnic University · +6 more institutions
Abstract
The development of Pt-based catalysts for use in fuel cells that meet performance targets of high activity, maximized stability, and low cost remains a huge challenge. Herein, we report a nitrogen (N)-doped high-entropy alloy (HEA) electrocatalyst that consists of a Pt-rich shell and a N-doped PtCoFeNiCu core on a carbon support (denoted as N–Pt/HEA/C). The N–Pt/HEA/C catalyst showed a high mass activity of 1.34 A mgPt–1 at 0.9 V for the oxygen reduction reaction (ORR) in rotating disk electrode (RDE) testing, which substantially outperformed commercial Pt/C and most of the other binary/ternary Pt-based catalysts. The N–Pt/HEA/C catalyst also demonstrated excellent stability in both RDE and membrane electrode…
Citation impact
- FWCI
- 12.49
- Percentile
- 100%
- References
- 51
Authors
10- XZXueru Zhao
Brookhaven National Laboratory
- HCHao Cheng
Hong Kong Polytechnic University
- XCXiaobo Chen
Binghamton University
- QZQi Zhang
University of Indianapolis, Indiana University – Purdue University Indianapolis
- CLChenzhao Li
University of Indianapolis, Indiana University – Purdue University Indianapolis
Topics & keywords
- Chemistry
- Alloy
- Durability
- Boosting (machine learning)
- Metal
- Bond
- Nitrogen
- Inorganic chemistry