Ontology highlight
ABSTRACT:
SUBMITTER: Chen SF
PROVIDER: S-EPMC10499812 | biostudies-literature | 2023 Sep
REPOSITORIES: biostudies-literature
Chen Sheng-Fu SF Wu Tai-Sing TS Soo Yun-Liang YL
Scientific reports 20230913 1
We present a new composite catalyst system of highly defective graphene quantum dots (HDGQDs)-doped 1T/2H-MoS<sub>2</sub> for efficient hydrogen evolution reactions (HER). The high electrocatalytic activity, represented by an overpotential of 136.9 mV and a Tafel slope of 57.1 mV/decade, is due to improved conductivity, a larger number of active sites in 1T-MoS<sub>2</sub> compared to that in 2H-MoS<sub>2</sub>, and additional defects introduced by HDGQDs. High-resolution transmission electron m ...[more]