Hierarchical structure of amorphous Co–P nanosheets decorated crystalline NiCo2S4 nanorods as a bifunctional catalyst for electrocatalytic water splitting

Hollow Co3O4/CdS Nanoparticles for Photocatalytic Hydrogen Evolution and Photodegradation

“…Huang et al fabricated the Mn 0.25 Cd 0.75 S/Co 3 O 4 pn junction for achieving decent visible light hydrogen evolution activities, Jo et al reported the Co 3 O 4 /TiO 2 pn junction with remarkable visible light photodegradation . Additionally, Co with variable valence states can form the Co 2+ /Co 3+ mixed state to induce a hole carrier for increasing carrier efficiency and decrease the energy barrier to accelerate the photocatalytic process. − …”

Enhancing Overall Water Splitting via Anion and Cation Synergistical Modulation in NiS Amorphous Compound

“…In recent decades, global concerns regarding environmental pollution and energy shortages have spurred the search for cost-effective, abundant, and clean energy sources. Hydrogen is emerging as a highly promising candidate to address these challenges due to its high combustion value, recyclability, and lack of polluting emissions. − Among the various methods of hydrogen generation, alkaline water electrolysis involving HER and OER has gained widespread attentions. Traditionally, platinum-group metals and RuO 2 -based catalysts have been employed for catalyzing the HER and the OER, respectively.…”

CuI/BaSnO3 Quantum Dot/ZnSnO3 Perovskite-based Transparent p–n Junction for Photovoltaic Enhancement

“…With the rapid growth in energy demand and environmental pollution, developing green renewable energy sources has become a crucial research topic. Solar energy, with its abundant reserves, cleanliness, and low cost, has gained considerable attention and has been extensively studied as a promising approach for power generation, − particularly through solar cells owing to their high efficiency and convenience of use. − For example, silicon and perovskite solar cells have shown great potential for development. However, long-term stability and toxicity issues associated with organic and inorganic hybrid perovskite solar cells pose serious challenges for their practical applications. − Moreover, while full-spectrum absorption is advantageous for achieving high photovoltaic conversion efficiency (PCE), it hinders wide-ranging applications, − such as in smart windows.…”