Controllable Construction of Two-Dimensional Conductive M₃(HHTP)₂ Nanorods for Electrochemical Sensing of Malachite Green in Fish

In Situ NH2-MIL-101(Fe) Nanoparticles Modified Pencil Core Electrodes for Simultaneous Ratiometric Electrochemical Detection of Caffeic Acid and Acetaminophen

“…The pencil core electrode (PCE) has been widely used in several biological and small molecule studies , due to their advantages such as good conductivity, wide potential range, and cheap and easy availability. − In 2020, Huang’s team used square wave voltammetry (SWV) to detect chlorogenic acid using porous pencil electrodes and achieved accurate detection in human urine. , In addition, metal–organic frameworks (MOFs) have been widely studied due to their tunable structures, numerous functionalities, high specific surface area, and high number of active sites. − Fe-based metal–organic frameworks (Fe-MOFs) are versatile MOFs that not only have porous channels with ultrahigh specific surface area but also multiple active sites. − In particular, NH 2 -MIL-101­(Fe) has better electrochemical catalytic properties in the presence of the – NH 2 group with high electron density, which contributes to the accelerated electron transfer rate . On the other hand, it also possesses enzyme-like activity .…”

Two-Dimensional π–d-Conjugated Cobalt-Based Metal–Organic Framework for Efficient Oxygen Evolution

“…In addition, the in situ growth of MOFs on metal substrates is an efficient strategy that can enhance the conductivity of MOFs. However, it is not applicable to most MOFs, and the mechanism of MOFs grown on metal substrates in catalytic reactions is difficult to clarify. , Recently, two-dimensional (2D) conductive MOFs assembled by π-conjugated molecular organic ligands with metal ions exhibit promising application for OER due to their outstanding rigidity and conductive properties, which are characterized by the graphite-like π-d conjugated structure. − Notably, 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) has six hydroxyl groups, providing multiple binding sites for metal ions and leading to the formation of diverse coordination complexes. − Furthermore, the planar aromatic structure of HHTP promotes the π–π stacking interactions, stabilizing the overall structure of the complexes. , Additionally, among many transition metals, cobalt offers the advantages of low cost and corrosion resistance. − …”