Active and highly stable electrocatalysts for oxygen evolution reaction (OER) in acidic media are currently in high demand as a cleaner alternative to the combustion of fossil fuels. Herein, we report a Co-doped nanorod-like RuO2 electrocatalyst with an abundance of oxygen vacancies achieved through the facile, one-step annealing of a Ru-exchanged ZIF-67 derivative. The compound exhibits ultra-high OER performance in acidic media, with a low overpotential of 169 mV at 10 mA cm-2 while maintaining excellent activity, even when exposed to a 50-h galvanostatic stability test at a constant current of 10 mA cm-2. The dramatic enhancement in OER performance is mainly attributed to the abundance of oxygen vacancies and modulated electronic structure of the Co-doped RuO2 that rely on a vacancy-related lattice oxygen oxidation mechanism (LOM) rather than adsorbate evolution reaction mechanism (AEM), as revealed and supported by experimental characterizations as well as density functional theory (DFT) calculations.

Magnesium doped RuO ₂ exhibits excellent acidic oxygen evolution reaction performance with an overpotential of 228 mV at 10 mA cm ⁻² .

A Zr-based metal–organic framework (MOF-801) with high thermal and chemical stability was prepared by the solvothermal synthesis method. Notably, MOF-801 exhibits a high separation selectivity for C₃H₈/CH₄ and C₂H₆/CH₄, making it a practical material for the storage and purification of light alkanes.

This review summarizes and discusses recent efforts paid to the design and synthesis of electrocatalysts for nitrogen fixation under ambient conditions.