Substantial Impact of Built‐in Electric Field and Electrode Potential on the Alkaline Hydrogen Evolution Reaction of Ru−CoP Urchin Arrays
Qingdao University of Science and Technology · City University of Hong Kong · +4 more institutions
Abstract
Abstract Although great efforts on the delicate construction of a built‐in electric field (BIEF) to modify the electronic properties of active sites have been conducted, the substantial impact of BIEF coupled with electrode potential on the electrochemical reactions has not been clearly investigated. Herein, we designed an alkaline hydrogen evolution reaction (HER) catalyst composed of heterogeneous Ru−CoP urchin arrays on carbon cloth (Ru−CoP/CC) with a strong BIEF with the guidance of density functional theory (DFT) calculations. Impressively, despite its unsatisfactory activity at 10 mA cm −2 (overpotential of 44 mV), Ru−CoP/CC exhibited better activity (357 mV) than the benchmark Pt/C catalyst (505 mV) at…
Citation impact
- FWCI
- 11.40
- Percentile
- 100%
- References
- 32
Authors
8Topics & keywords
- Electrochemistry
- Electric field
- Density functional theory
- Electrode
- Catalysis
- Hydrogen
- Sea urchin
- Chemistry