Synthesis, characterization of nanosized CoAl2O4 and its electrocatalytic activity for enhanced sensing application

Dumitru, Raluca; Manea, Florica; Lupa, Lavinia; Păcurariu, Cornelia; Ianculescu, Adelina; Baciu, Anamaria; Negrea, Sorina

doi:10.1007/s10973-016-6045-y

Cited by 20 publications

(11 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The morphostructural properties of the LaFeO 3 are different functions of the calcination temperature, and the lowest particles were obatined at a relatively low temperature of 550 • C in comparison with other materials synthesized by the same method [43][44][45][46].…”

Section: Characterization Of Lafeo 3 Powdersmentioning

confidence: 90%

“…The IR spectrum of oxalate precursor (Figure 1a) reveals the presence of water [3410 cm −1 (ν OH , ν H2O ), 794 cm −1 (lattice water)] [41,54], oxalate anions [as bidentate ligand: 1642 cm −1 (ν asym (O=C-O) ) + δ sym (HOH), 1308 cm −1 (ν sym (O=C-O) , 1051 cm −1 (ν (C-O) )] [42]; as tetradentate ligand: 1445 cm −1 (ν sym (OCO) ), 915 cm −1 (δ (OCO) )] [55], and metal-oxygen linkages [600-400 cm −1 : ν (La-O) and ν (Fe-O) vibrations]. The IR spectra of LaFeO 3 obtained after calcination at 550 • C (Figure 1b) and 700 • C (Figure 1c) exhibit only the bands characteristic for vibrations ν(La-O) and ν(Fe-O) in the range of 600-400 cm −1 [43,44].…”

Section: Characterization Of Lafementioning

confidence: 99%

“…No other bands characteristic to the presence of the water and the oxalate anion can be noticed due to thermal decomposition of the precursor, known as the LaFe(C The first step of thermal decomposition of LaFe(C2O4)3•3H2O (25-160 C, mass loss: found 11.10%, calcd. 10.53%) is associated with an endothermic effect, and the mass loss is attributed to the evolving of the lattice water [43].…”

Section: Characterization Of Lafe(c2o4)3•3h2o Oxalate Precursormentioning

confidence: 99%

See 2 more Smart Citations

Lanthanum Ferrite Ceramic Powders: Synthesis, Characterization and Electrochemical Detection Application

et al. 2020

Self Cite

View full text Add to dashboard Cite

The perovskite-type lanthanum ferrite, LaFeO3, has been prepared by thermal decomposition of in situ obtained lanthanum ferrioxalate compound precursor, LaFe(C2O4)3·3H2O. The oxalate precursor was synthesized through the redox reaction between 1,2-ethanediol and nitrate ion and characterized by chemical analysis, infrared spectroscopy, and thermal analysis. LaFeO3 obtained after the calcination of the precursor for at least 550–800 °C/1 h have been investigated by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and high-resolution transmission electron microscopy (HRTEM). A boron-doped diamond electrode (BDD) modified with LaFeO3 ceramic powders at 550 °C (LaFeO3/BDD) by simple immersion was characterized by cyclic voltammetry and tested for the voltammetric and amperometric detection of capecitabine (CCB), which is a cytostatic drug considered as an emerging pollutant in water. The modified electrode exhibited a complex electrochemical behaviour by several redox systems in direct relation to the electrode potential range. The results obtained by cyclic voltammetry (CV), differential-pulsed voltammetry (DPV), and multiple-pulsed amperometry proved the electrocatalytic effect to capecitabine oxidation and reduction and allowed its electrochemical detection in alkaline aqueous solution.

show abstract

Section: Characterization Of Lafeo 3 Powdersmentioning

confidence: 90%

Section: Characterization Of Lafementioning

confidence: 99%

Section: Characterization Of Lafe(c2o4)3•3h2o Oxalate Precursormentioning

confidence: 99%

See 1 more Smart Citation

Lanthanum Ferrite Ceramic Powders: Synthesis, Characterization and Electrochemical Detection Application

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…A slight increase in the anode current in the potential range where oxygen discharge takes place and thus, this process covers the oxidation process of the two cytostatics, which leads to the impossibility of detection on the BDD electrode. In this context, taking into account the results reported in literature for the BDD [16][17][18] electrode surface modification, the copper particles (Cu) were deposited on the surface of the BDD electrode. The electrochemical behavior of oxaliplatin and paclitaxel on the copper modified BDD electrode (Cu / BDD) was also studied by cyclic voltammetry and the results obtained are shown in Figure 3a (for oxaliplatin) and Figure 3b (for paclitaxel).…”

Section: Results and Discussion Structural And Morphological Charactmentioning

confidence: 99%

Copper-Modified Boron-Doped Diamond (Cu/Bdd) Electrode for the Electrochemical Detection of Paclitaxel and Oxaliplatin in Aqueous Solutions

2020

Rev.Chim.

View full text Add to dashboard Cite

The aim of this study was to obtain a simple and fast modified electrode for the detection of paclitaxel (PCX) and oxaliplatin (OXA) in aqueous solution. PCX and OXA are some of the most used cytostatic drugs suitable to treat various types of cancer, e.g., ovarian, breast, lung, cervical, pancreatic, Kaposi’s sarcoma. The development of an easy method for its determination is required for both the dosage in cancer therapy and due its potential presence in environment and especially, in water samples. Boron doped diamond (BDD) electrode was electrochemically modified with copper (Cu) by chronoamperometry (CA) operated under optimized conditions of -0.75 V/SCE potential level for 120 minutes. Copper-modified boron-doped diamond (Cu/BDD) exhibited the electrocatalytic effect towards the paclitaxel and oxaliplatin oxidation, allowing their detection in 0.1 M NaOH supporting electrolyte. The limiting anodic current was noticed at the potential value of +0.75 V/SCE that increased linearly with PCX concentration, and at the potential value of + 0.6V/SCE for the oxaliplatin. Some mechanical aspects related to the PCX oxidation at Cu/BDD electrode in 0.1 M NaOH supporting electrolyte were determined using cyclic voltammetry (CV) recorded at various scan rates. CV was based on compounds detection and achieved the sensitivity of 0.65 μA/µM for oxaliplatin and respective, 5.47 μA/µM for paclitaxel. Keywords: copper, electrochemical detection, modified boron-doped diamond electrode paclitaxel, oxaliplatin

show abstract

“…By modifying the electrode surface with nanostructured material, for example graphene, the electrocatalytic effect and the electroactive surface are enhanced. Also, by silver particles deposited on the BDD electrode, the electrocatalytic activity is reflected by the higher rate of transfer electrons and by the improvement of sensitivity regarding the electrochemical detection of the target analytes [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Graphene Oxide Electroreduced onto Boron-Doped Diamond and Electrodecorated with Silver (Ag/GO/BDD) Electrode for Tetracycline Detection in Aqueous Solution

et al. 2021

Self Cite

View full text Add to dashboard Cite

A new electrochemical sensor designed by modifying the commercial boron-doped diamond (BDD) electrode with graphene oxide (GO) reduced electrochemically and further electrodecorated with silver (Ag), named the Ag/GO/BDD electrode, was selected among a series of the BDD, GOelectroreduced onto BDD (GO/BDD) and silver electrodeposited onto BDD (Ag/BDD) electrodes for the detection of tetracycline (TC) in aqueous solution. The best results regarding the sensitivity of 46.6 µA·µM−1·cm−2 and the lowest limit of detection of 5 nM was achieved using square-wave voltammetry (SWV) operated at the step potential of 5 mV, modulation amplitude of 200 mV and the frequency of 10 Hz in alkaline medium. The application of the alkaline supporting electrolyte-based procedure is limited for water monitoring due to the presence of chloride that interferes with TC detection; however, it can be applied for quantitative determination of pharmaceutical formulations. 0.1 M Na2SO4 supporting electrolyte eliminated chloride interference and can be used for the application of Ag/GO/BDD in practical detection of TC in water.

show abstract

Synthesis, characterization of nanosized CoAl2O4 and its electrocatalytic activity for enhanced sensing application

Cited by 20 publications

References 28 publications

Lanthanum Ferrite Ceramic Powders: Synthesis, Characterization and Electrochemical Detection Application

Lanthanum Ferrite Ceramic Powders: Synthesis, Characterization and Electrochemical Detection Application

Copper-Modified Boron-Doped Diamond (Cu/Bdd) Electrode for the Electrochemical Detection of Paclitaxel and Oxaliplatin in Aqueous Solutions

Graphene Oxide Electroreduced onto Boron-Doped Diamond and Electrodecorated with Silver (Ag/GO/BDD) Electrode for Tetracycline Detection in Aqueous Solution

Contact Info

Product

Resources

About