One‐Step Electrodeposition of NiCo₂S₄ Nanosheets on Patterned Platinum Electrodes for Non‐Enzymatic Glucose Sensing

Abstract

Abstract:We describe the preparation of NiCo2S4 (NCS) nanosheets on photolithographically patterned platinum electrodes by electrodeposition.The as-prepared nanosheets were systematically characterized by field emission scanning electron microscope (FESEM), energy dispersive X-ray (EDX) and X-ray photoelectron spectroscopy (XPS) techniques. The NCS modified Pt electrode was used as a non-enzymatic glucose sensor. The sensor response exhibited two linear regions in glucose concentration, with a limit of detection of 1.2 μM. The sensors showed that the asprepared NCS nanosheets have excellent electrocatalytic activity towards glucose with long stability, good reproducibility and excellent anti-interference property, thus demonstrating that this material holds promise for the development of a practical glucose sensor.

Synthesis of NiCo2O4 Nanostructures and Their Electrochemial Properties for Glucose Detection

“…The sensitivity of the NiCo2O4/rGO shows the highest value when compared to the other materials including NCOs, induced by the excellent electrochemical performance of the NCOs combined with fast electron transfer from supportive rGO [52][53][54][55]. However, NCOs show higher sensitivity with a lower detection limit in response to glucose compared to the rest of the materials in Table 1 [56][57][58]. Therefore, the NCOs as pure oxides can be expected to be practical for the application of glucose sensors.…”

Electrodeposited Nickel Cobalt Sulfide Flowerlike Architectures on Disposable Cellulose Filter Paper for Enzyme-Free Glucose Sensor Applications

“…The replacement of oxygen (O) with sulfur (S) in Co 3 O 4 can elongate the chemical bonds with flexible structure, which could facilitate the rapid and easier electron transportation . Although the discrepancies of CoO nanostructures could be alleviated with CoS nanostructures, the effective glucose-sensing performances would be still inferior, necessitating the development of ternary nickel cobalt sulfide (NiCo 2 S 4 ) nanostructures .…”

High performance asymmetric supercapacitors based on Ti3C2Tx MXene and electrodeposited spinel NiCo2S4 nanostructures

“…52-0875]. 49 In Fig. S2(f) † a sharp peak at 26.11° belongs to the (002) plane represents the high-quality VG nanosheets.…”