Figure 2 (IMAGE)

Advanced Institute for Materials Research (AIMR), Tohoku University

Figure 2

Caption

Theoretical calculations on the electrochemistry-induced P-vacancy formation (Pv) and HER activity. a-c) Calculated surface Pourbaix diagrams for a) CoP(010), b) CoP|F(010) with 1F doped at the subsurface, and c) CoP|F(010) with 2F doped at the subsurface. The term ∆∆G refers to the difference in Gibbs free energy between the pristine system and the system after the formation of a phosphorus vacancy. d) The identified surfaces with 1 monolayer Pv formation. Blue, purple, and red spheres represent P, Co, and F, respectively. e) HER volcano activity model showing the theoretical activities of the CoP|F(010) surfaces with Pv. 

Credit

©Heng Liu et al.

Usage Restrictions

Reporters may use freely these materials in news coverage with appropriate credit information.

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.