A web of poly(bisbenzimidazolatocopper(ii)) around multiwalled carbon nanotubes for the electrochemical detection of hydrogen peroxide

Abstract

The present work focuses on the electrochemical determination of hydrogen peroxide (H2O2), using a poly(bisbenzimidazolatocopper(II)) coordinated multiwalled carbon nanotube modified glassy carbon electrode (MWCNT/(BIM-Cu2+)n@GCE). The physical characterization techniques point to...

SnO2QDs Deposited on GO/PPy-Modified Glassy Carbon Electrode for Efficient Electrochemical Hydrogen Peroxide Sensor

“…The SGP2 GCE exhibits a high sensitivity of 11.69 µA mM cm −2 and a low limit of detection (LOD) of 0.758 µM; these results suggest that the archived value is higher than the previously reported results as mentioned in literature [ 35 , 36 , 37 ]. In Table 1 , a comparative study of the analytical performance of the proposed SGP2 modified GCE sensor with the previously published sensors for H 2 O 2 detection is presented [ 4 , 38 , 39 , 40 , 41 ]. To the best of our knowledge, the proposed SGP2 modified GCE has a suitable sensor electrode for various environmental and clinical diagnostic applications.…”

“…In light of all of these, the thorough examination and detection of H 2 O 2 are simply essential for both academic and industrial purposes. The electrochemical method is particularly competitive and appealing among the different techniques created for the quantitative detection of H 2 O 2 due to its benefits, such as simple operation, easy downsizing, low cost, high sensitivity, strong stability, and the potential for real-time detection [ 4 ]. The two basic types of electrochemical H 2 O 2 sensors are enzymatic and non-enzymatic sensors.…”

“…In recent years, various types of nanostructured PPy combined with graphene, GO, or reduced GO (rGO) nanosheets have been prepared and used to fabricate electrodes due to polypyrrole’s distinctive properties, including its higher conductivity, low cost, excellent thermal stability, rapid charge–discharge mechanism, and high energy density [ 25 ]. According to Gurusamy et al [ 4 ], the electrochemical measurement of hydrogen peroxide (H 2 O 2 ), using a modified glassy carbon electrode (MWCNT/(BIM-Cu 2+ ) n @GCE) coordinated with poly(bisbenzimidazol at copper(II)), was proposed by Gurusamy et al This form of coordination polymer web for peroxide sensing is documented. The electrode demonstrated an H 2 O 2 detection limit of 7.8 × 10 −7 M and a sensitivity of 5 nA μM −1 in amperometric sensing.…”

Recent Advances in the Use of CoPc-MWCNTs Nanocomposites as Electrochemical Sensing Materials

“…Thus, MWCNTs have better redox activity than single-walled carbon nanotubes (SWCNTs) [ 7 ]. Importantly, CNTs (SWCNTs and MWCNTs) have been extensively used as a sensing material to fabricate various nanocomposites which have been successfully employed to determine a wide range of analytes, such as uric acid, ascorbic acid, dopamine [ 8 , 9 ], styrene, epinephrine [ 7 , 10 ], glutathione, cysteine, acetaminophen [ 11 , 12 ], carbaryl, thiols, bisphenols [ 13 , 14 , 15 ], bromate, nitrite [ 16 ], hydrogen peroxide, paracetamol [ 17 , 18 ], lactic acid, hydrazine, glucose [ 19 , 20 , 21 ], and others.…”

The controllable synthesis of orange-red emissive Au nanoclusters and their use as a portable colorimetric fluorometric probe for dopamine

“…3,4 In this regard, the detection of DA in human fluids is a critical requirement for the diagnosis of these diseases. Conventionally, many strategies, such as fluorescence spectrometry, 5 chromatography, 6 electrochemistry, 7,8 surface-enhanced Raman spectroscopy 9 and chemiluminescence, 10 have been adopted to determine the DA in human fluids. Among them, some conventional methods are restricted by the complicated pretreatment and time-consuming operation of the instruments, though the accuracy of detection is high.…”