Modulated Ultrathin NiCo-LDH Nanosheet-Decorated Zr³⁺-Rich Defective NH₂–UiO-66 Nanostructure for Efficient Photocatalytic Hydrogen Evolution

Defect-rich UiO-66@g-C3N4/Ni frameworks as efficient water splitting photocatalysts

“…9,10 Additionally, it has been observed in the recent studies of our group that defects control the recombination in the HER. 11 The linkers are believed to function as recombination sites for minority charge carriers. Consequently, the process disrupts the regular grouping of atoms/ions in the primary structure.…”

Selective Facet Engineering of Ni12P5 Nanoparticle for Maximization of Electrocatalytic Oxidative Reaction of Biomass Chemicals

“…Also, the abundance of fossil fuels is decreasing at an alarming rate which could cause serious energy crisis in our fast-growing human civilization. Hydrogen (H 2 ) is considered as a clean source of energy as combustion of hydrogen results in zero carbon footprint. , Water electrolysis is one of the easiest ways to produce H 2 , when the supplied electricity is obtained from renewable sources. However, for commercialization, stable and efficient electrocatalysts need to be developed.…”

Crystal-Defect-Induced Longer Lifetime of Excited States in a Metal–Organic Framework Photocatalyst to Enhance Visible-Light-Mediated CO2 Reduction

“…Metal–organic frameworks (MOFs) are crystalline coordination polymers constructed by assembling metal ions/clusters and organic linkers. − MOFs possess large porous structures, high surface areas, synthetic feasibility, and rich diversity of inorganic/organic units. , Like semiconductors, MOFs excited by UV or visible light undergo electron–hole pair separation and transfer, leading to photochemical transformation. − However, the photocatalytic efficiency of MOFs still faces significant challenges, including a large band gap energy, low separation and transfer efficiency of photogenerated charges, and mismatch of the photoredox potential between MOFs and substrate molecules. Scientists have explored various strategies to improve the photocatalytic performance of MOFs, such as functionalizing organic linkers, creating structural defects, packaging transition metals, and constructing heterojunctions. − Among these strategies, defect engineering is an effective approach for enhancing the photocatalytic efficiency of MOFs by regulating the structure and composition of the framework. − Structural defects in MOFs refer to the absence of partial organic linkers or metal nodes from a perfect crystallographic structure . The general method for constructing structural defects in MOFs involves utilizing excess monocarboxylic acid ligands, such as formic acid, acetic acid (HAc), or trifluoroacetate acid, to coordinate with metal oxygen clusters instead of polycarboxylic acid ligands during the one-pot synthesis. , …”