Ultra-stable two-dimensional metal–organic frameworks for photocatalytic H₂ production

Abstract

Two dimensional (2D) metal-organic frameworks (MOFs) is one of the most promising photocatalysts owing to its highly exposed active sites and superior charge mobility. However, the synthesis of high-stable 2D...

Current Progress in 2D Metal–Organic Frameworks for Electrocatalysis

“…These consequences shorten the diffusion lengths of the products and reactants to improve the performance of an electrocatalyst significantly. [ 101–105 ] As demonstrated by Liu et al, the ultrathin 2D Fe‐doped NiS/MoS 2 nanosheets exhibited significantly improved catalytic performance, attributed to the plenty of exposed active sites on ultrathin nanosheets. [ 104 ] Furthermore, various compositions in 2D MOF nanosheets, made of transition metal nodes, ligands substitution, and doping of extra atoms, [ 106 ] have provided an understanding of reaction mechanisms to achieve highly efficient electrocatalysts.…”

Photoelectroactive metal–organic frameworks

“…91,113,114 3.1 Photocatalytic H 2 evolution Hydrogen generation through photocatalytic reactions is quite attractive. Extensive efforts and impressive achievements have been reported by using MOF-based photocatalysts such as pristine MOFs, [115][116][117][118][119] hybrid MOFs with guest species like metal nanoparticles, 55,93,96,[120][121][122][123][124][125] metal suldes, 51,52,126-128 metal oxides, 54,[129][130][131][132] MXenes, 133 g-C 3 N 4 , 134,135 and MOF derivatives. 136,137 Recently, Ti 8 Zr 2 O 12 (COO) 16 clusters in bimetallic TiZr MOFs involving Ti 4+ and Zr 4+ ions were designed and prepared for the generation of hydrogen under light irradiation.…”

“…Hydrogen generation through photocatalytic reactions is quite attractive. Extensive efforts and impressive achievements have been reported by using MOF-based photocatalysts such as pristine MOFs, 115–119 hybrid MOFs with guest species like metal nanoparticles, 55,93,96,120–125 metal sulfides, 51,52,126–128 metal oxides, 54,129–132 MXenes, 133 g-C 3 N 4 , 134,135 and MOF derivatives. 136,137…”

Introducing anthracene and amino groups into Ln-OFs for the photoreduction of Cr(vi) without additional photosensitizers or cocatalysts

“…Therefore, 2D MOFs are considered as more suitable photocatalyst candidates. [35][36][37][38][39][40] However, to the best of our knowledge, only a few articles have reported successful Cr(VI) photocatalytic reduction using 2D MOFs. 41,42 Meanwhile, chemists have found that 2D MOFs can be used as semiconductor materials, whereby the highest occupied molecular orbital (HOMO)-lowest unoccupied molecular orbital (LUMO) gap of the organic ligand in MOF systems is equal to the band gap of inorganic semiconductors, so it makes these photocatalysts possess the capabilities for fine-tuning and rational design at the molecular level.…”