Direct growth and post-treatment of zeolitic imidazolate framework-67 on carbon paper: an effective and stable electrode system for electrocatalytic reactions

Abstract

Metal-organic framework (MOF)-derived transition metal chalcogenide (TMC) materials have been increasingly utilized owing to their outstanding electrocatalytic activity and durability. To avoid any limitations in the immobilization of nanocatalysts onto...

Rational Construction of a 3D Self-Supported Electrode Based on ZIF-67 and Amorphous NiCoP for an Enhanced Oxygen Evolution Reaction

“…As a summary, we think the following points can be used to explain the role of each component of NiCoP/ZIF-67/NF in the OER catalysis. (1) The ZIF-67 component of the material can not only provide sufficient Co active sites 16,17 but also the unique morphology and large specific surface area of ZIF-67 can offer enough contact area with the electrolyte. 20 (2) Benefiting from the good electrical conductivity of transition-metal phosphides, 28 the NiCoP component can significantly improve the conductivity of the material, which can be proved by the LSV curves (Figure 5a).…”

“…14,15 Among the ZIF family, the cobalt-based imidazolate framework (ZIF-67) has emerged as a promising ZIF material for electrocatalysis owing to the highly dispersed Co active sites and the adjustable pore structure. 16,17 It is worth noting that the cobalt ions and the 2-MIM ligands in ZIF-67 have a good orbital overlap, which is conducive to promoting charge transfer. 18,19 Meanwhile, benefiting from the large specific surface area, ZIF-67 can provide sufficient contact area and enough active sites to improve catalytic activity.…”

“…Zeolite imidazolate frameworks (ZIFs), as a representative type of metal–organic frameworks (MOFs), have attracted wide attention in the field of electrocatalysis, which is attributed to their large surface area, great pore volume, facile synthesis, and chemical structure stability. , Among the ZIF family, the cobalt-based imidazolate framework (ZIF-67) has emerged as a promising ZIF material for electrocatalysis owing to the highly dispersed Co active sites and the adjustable pore structure. , It is worth noting that the cobalt ions and the 2-MIM ligands in ZIF-67 have a good orbital overlap, which is conducive to promoting charge transfer. , Meanwhile, benefiting from the large specific surface area, ZIF-67 can provide sufficient contact area and enough active sites to improve catalytic activity . Because of these characteristics, ZIF-67 can be directly applied to OER as an electrocatalyst and has shown good electrocatalytic performance. , However, the inherent low conductivity and poor metal activity of ZIF-67 result in sluggish effective charge transfer and hinder real active site formation for application in OER. , Relevant researches suggest that combining ZIF-67 with functional materials possessing high catalytic activity and excellent conductivity has drawn extensive attention as a means to enhance electrocatalytic performance. , …”

Metal–organic frameworks on versatile substrates

“…Carbon cloth (CC) is an ideal ber substrate due to its light weight, good conductivity, and excellent thermal properties, which have been reported in these studies. [130][131][132][133][134][135][136][137][138][139][140] Among them, carbon ber is a sort of one-dimensional material with exceptional strength and high conductivity, which is low-cost and light weight. 141 Yang's team has performed a lot of work on carbon bers, such as developing an in situ assembly of MOF multi-level heterostructures on the surface of recycled carbon ber.…”

Engineering the core–shell structure CoMnOx@OTS cubic catalyst with excellent water resistance for low-temperature catalytic combustion of VOCs

“…Among them, Co-based ZIF-67 is a metal-organic framework (MOF) material constructed from cobalt ions (Co 2+ ) and 2-methylimidazole through ligand bonding with a cubic crystal system. 14 ZIF-67 has the advantages of large specific surface area, uniform distribution of central metal ions, a high degree of crystallinity and controllable structure. 15,16 It has become one of the most promising catalysts.…”