Enhancement of 1T‐MoS2 Superambient Temperature Stability and Hydrogen Evolution Performance by Intercalating a Phenanthroline Monolayer

Goloveshkin, A.S.; Lenenko, N.D.; Naumkin, A.V.; Pereyaslavtsev, A.Y.; Grigorieva, A.V.; Shapovalov, A.V.; Talanova, V.N.; Polezhaev, A.V.; Zaikovskii, V.I.; Novikov, V.V.; Korlyukov, A.A.; Golub, A.

Авторы: Goloveshkin Alexander S., Lenenko Natalia D., Naumkin Alexander V., Pereyaslavtsev Alexander Yu, Grigorieva Anastasia V., Shapovalov Aleksei V., Talanova Valeria N., Polezhaev Alexander V., Zaikovskii Vladimir I., Novikov Valentin V., Korlyukov Alexander A., Golub Alexandre
Журнал: CHEMNANOMAT
Том: 7
Номер: 4
Год издания: 2021
Первая страница: 447
Последняя страница: 456
Номер статьи: cnma.202000586
DOI: 10.1002/cnma.202000586
Аннотация: Metastable modification of MoS2 (1T) is widely recognized as a hopeful non-precious electrocatalyst in hydrogen production. This paper describes an approach to impart a superambient temperature stability to 1T-MoS2 by incorporating it in 2D hybrid architecture with cationic monomolecular phenanthrolinium (PhenH+) hydrate layers. Atomic structure and bonding interactions of the assembled architecture revealed by PXRD, TEM, XPS, Raman and UV-Vis spectroscopy data coupled with DFT calculations and quantum theory of atoms in molecules (QTAIM) analysis suggest the 1T-MoS2 sheets involved in strong bonding with the PhenH-H2O layers. This results in a highly stable layered system, which is kept intact in 0.5M sulfuric acid electrolyte and tolerates superambient temperature heating. As compared with pure 1T-MoS2, the compound with a phenanthroline interlayer provides greater activity and better current-voltage efficiency in electrocatalytic hydrogen evolution after heating treatment owing to stabilization of the 1T phase. The obtained results could be useful for the design of novel electrocatalytic devices exploiting 1T-MoS2 modification.
Добавил в систему: Голубь Александр Семенович

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Enhancement of 1T‐MoS2 Superambient Temperature Stability and Hydrogen Evolution Performance by Intercalating a Phenanthroline Monolayerстатья

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