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Herein, we demonstrate the first example of a novel electrocatalytic hybrid system (CoTPP–PZSNT) with a push–pull motif to boost hydrogen evolution reaction (HER) activity. CoTPP–PZSNT exhibits an efficient HER activity, with overpotentials of 157 and 109 mV at 10 mA cm−2 in 1.0 M KOH and 0.5 M H2SO4 solutions, respectively. The HER performance of CoTPP–PZSNT outperforms many previously reported HER catalysts, due to efficient charge transfer between each component. [ABSTRACT FROM AUTHOR]

Herein, the preparation of CoSe@NiSe2@MoS2 composites and the systematic investigation of their water splitting performance as a function of composition have been demonstrated. CoSe@NiSe2@MoS2-12 with the optimized composition exhibits a current density of 10 mA cm−2 at overpotentials of 81 and 170 mV for HER and OER in alkaline conditions, respectively. The overall water splitting device built using CoSe@NiSe2@MoS2-12 exhibited a low voltage of 1.48 V at 10 mA cm−2 due to the synergistic effects. [ABSTRACT FROM AUTHOR]

Herein, a series of FeOx-MoP@MWCNT composite electrocatalysts was designed and prepared to investigate the influence of the content of FeOx on the water splitting performance. The optimized FeOx-MoP@MWCNTs-2 exhibits excellent hydrogen and oxygen evolution reaction activity while a cell voltage of 1.51 V with outstanding stability is attained, attributed to the synergistic effect of each component, as evidenced by the experimental and density functional theory results. The observed electrocatalytic activity outperforms current state-of-the-art non-precious metal electrocatalysts. [ABSTRACT FROM AUTHOR]