Conductive Metal-Organic Frameworks for Amperometric Sensing of Paracetamol

Abstract

An electrochemical sensor for paracetamol is executed by using conductive MOF (NiCu-CAT), which is synthesized by 2, 3, 6, 7, 10, 11-hexahydroxytriphenylene (HHTP) ligand. The utility of this 2D NiCu-CAT is measured by the detection of paracetamol, p-stacking within the MOF layers is essential to achieve high electrical conductivity, redox activity, and catalytic activity. In particular, NiCu-CAT demonstrated detection Limit of determination near 5μM for paracetamol through a wide concentration range (5–190 μM). The NiCu-CAT/GCE exhibits excellent reproducibility, stability, and interference for paracetamol.

A facile sonochemical synthesis of the Zn-based metal–organic framework for electrochemical sensing of paracetamol

“…Since the variation in the slope is equivalent to 2.303 mRT / nF (where m is the number of protons and n is the number of electrons), the calculation of the protons and electrons involved in the reaction is possible. 77 Our results, along with findings in the literature, 78–81 propose a process involving the transfer of two electrons and one proton for the oxidation of PA on the surface of the modified electrode. The oxidation mechanism of PA can be explained by various pathways, as shown in Fig.…”

External and internal dual-controls: Tunable cavity and Ru–O–Co bond bridge synergistically accelerate the RuCoCu-MOF/CF nanorods for urea-assisted energy-saving hydrogen production

“…The broad peak at 3420 cm − 1 belongs to O-H bonds due to the presence of water, the peak at 1641 cm − 1 is the characteristic absorption peak of the aromatic ring, and the peaks of 1641 and 1450 cm − 1 both belong to the asymmetric vibration of O = C-O. More importantly, the characteristic peak of Cu-O also appears at 573 cm − 1 , certifying the existence of the Cu-MOF host in the RuCoCu-MOF sample [44,45]. As revealed by Figs.…”

Recent progress in the development of porous carbon-based electrodes for sensing applications

“…The characteristics of these porous networks entail large specific surface areas and well-defined pore size distributions, as well as controllable chemical functionalization at the surface. 120 Although various reports describe the use of MOFs to fabricate electrochemical sensors, 121–124 it is difficult to use them for an efficient electrochemical performance due to the instability of most of them in water and their poor electrical conductivity. 125 In this sense, through thermal treatment in an inert atmosphere, the polymeric organic structure becomes a carbonaceous material.…”