Polyaniline (PANI) decorated Bi₂MoO₆ nanosheets are capable of showing dual functionality, both as efficient optical limiters and recyclable photocatalysts, due to the efficient interfacial charge transfer.

Integrating various active sites into a multi-component system might significantly enhance the oxygen evolution reaction (OER) performance. Herein, the as-prepared iron-molybdenum nitride/molybdenum oxide (Fe-Mo₅N₆/MoO₃-550) composite electrocatalyst under optimum conditions demonstrates excellent electrocatalytic performance toward OER and reaches current densities of 10 and 20 mA cm⁻² at overpotentials of 201 and 216 mV, respectively. The OER performance of Fe-Mo₅N₆/MoO₃-550 exceeds that of most previously reported electrocatalytic systems. The significant improvement in the OER performance is ascribed to a combination of mechanisms. The strong electronic interactions among the Fe, Mo₅N₆ and MoO₃ species can accelerate the OER reaction kinetics, which contributes to the OER performance. This work provides new insights into the construction of efficient electrocatalytic materials with inexpensive metals.

In this work, a series of Mo_xCo_1−xP₂/MWCNT (x = 0.25, 0.29 and 0.33) composite electrocatalysts have been designed and successfully fabricated, and their utility as remarkable, active and stable electrocatalysts is reported for the first time.