Co doping promotes the alkaline overall seawater electrolysis performance over MnPSe3 nanosheets.

Autor: Zhang, Hao, Meng, Ge, Wei, Tianran, Ding, Junyang, Liu, Qian, Luo, Jun, Liu, Xijun
Předmět:
Zdroj: Chemical Communications; 10/18/2023, Vol. 59 Issue 81, p12144-12147, 4p
Abstrakt: Herein, two-dimensional cobalt-doped MnPSe3 nanosheets (CMPS) were constructed, which served as an outstanding bifunctional catalyst for alkaline seawater splitting, i.e., offering the current density of 10 mA cm−2 with applied overpotentials of 59 and 300 mV for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), respectively. The assembled two-electrode system of CMPS//CMPS also demonstrated excellent catalytic activity (10 mA cm−2, 1.59 V) and can remain stable for more than 100 h. Moreover, the theoretical calculations showed that CMPS features a suitable H* adsorption beneficial for the HER, as well as a lower free energy barrier favorable for the OER. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index