MnCoO Nanostructure Anchored on Functionalized Carbon Black for the Enhanced Bifunctional Electrocatalytic Performance of OER and HER.

The electrocatalytic oxygen and hydrogen evolution reactions (OER and HER) are key processes used in energy storage and conversion. We have developed a highly efficient MnCoO nanostructure anchored with functionalized carbon black (MnCoO/f-CB), which has been characterized by XRD, FT-IR, Raman spectra, FE-SEM, and HR-TEM analyses as robust bifunctional electrocatalysts for both HER and OER. At a characteristic 10 mA cm current density, the MnCoO/f-CB composite ECs exhibit low overpotentials of 330 mV for OER and 360 mV for HER, respectively.

TiO-CeO/g-CN S-scheme heterostructure composite for enhanced photo-degradation and hydrogen evolution performance with combined experimental and DFT study.

The g-CN/TiO nanocomposites (NCs) are fabricated by optimization of calcination and subsequent hydrothermal technique decorated with CeO nanoparticles (NPs) to build the g-CN/TiO-CeO hybrid NCs. The chemical and surface characterizations of structural, morphological, elemental composition, optical, photo-degradation, HER performance and the DFT computation has been efficiently analyzed. The g-CN/TiO-CeO composite photocatalysts (PCs) exhibit photocatalytic improved performance (∼97 %) for MB aqueous dye related to pristine g-CN and g-CN/TiO composite PCs.