Organic–inorganic hybrids assembled from plenary Keggin-type germanotungstate units and 3d–4f heterometal clusters

Abstract

Two kinds of 3d–4f heterometal plenary Keggin germanotungstates were prepared. Their electrochemical sensing properties towards Acetaminophen detection were investigated.

The fabrication of a chemical sensor with PANI-TiO2 nanocomposites

“…Similar results have been reported in previous articles to detect numerous toxic chemicals and biochemicals applying the I-V approach. [34][35][36][37][38][39][40][41] To establish the calibration of 1,2-DAB sensor, the current data shown in Fig. 5(b) were isolated at the potential of +1.5 V, and a new calibration curve is plotted from the linear relation of the current versus concentration of 1,2-DAB, as shown in Fig.…”

La-doped NiWO4 coupled with reduced graphene oxide for effective electrochemical determination of diphenylamine

“…3C, the peak current is linearly related to the square root of the scan rate, confirming a diffusion-controlled procedure. 59 The slope of the line can be used to calculate the electrochemically active surface areas (EASA) of electrodes through the Randles-Sevcik equation, and detailed information is provided in the ESI. † Based on the results of SEM, La doping can effectively reduce the diameters of the nanoparticles and retard their agglomeration, leading to a porous nanostructure that provides abundant active sites, as evidenced by the improved EASA of La/NiWO 4 /GCE (0.075 cm 2 ) compared with bare GCE (0.055 cm 2 ), NiWO 4 /GCE (0.066 cm 2 ) and rGO/NiWO 4 /GCE (0.074 cm 2 ).…”

A series of polyoxometalate compounds by tuning N sites and numbers of ligands: syntheses, characterization and electrochemical sensing, and photocatalytic and supercapacitor properties

“…11 Next, some ligands with two symmetrical coordination groups were introduced to the POM field, such as bis(pyridine), bis(triazole) and bis(imidazole) derivatives. 12 For example, Peng et al used two bis(triazole) derivatives 1,2-bis(1,2,4-triazol-1-yl)ethane (bte) and 1,4-bis(1,2,4-triazol-1-yl)butane (btb) to synthesize four inorganic–organic hybrid POM compounds. 13 More coordination groups induce a stronger coordination ability in ligands to link metal atoms.…”