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Cyclic voltammetry (CV)

Tìm thấy 15+ kết quả cho từ khóa "Cyclic voltammetry (CV)"

Cyclic voltammetry behavior of tamoxifen in different electrolytes, electrochemical characterization, and its measurement by differential pulse anodic voltammetry

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Cyclic voltammetry behavior of tamoxifen in different electrolytes,. electrochemical characterization, and its measurement by differential pulse anodic voltammetry. Abstract: Cyclic voltammetry (CV) was performed on tamoxifen (tam) using different electrodes and in various acidic electrolytes containing 10% v v − 1 methanol (MeOH). Tam oxidation was found to be most favorable using 0.1 mol L − 1 H 2 SO 4 .

Cellulose phủ nickel ứng dụng cho quá trình oxi hóa điện hóa ethanol

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Tính chất điện hóa đối với ethanol của mẫu được khảo sát bằng phương pháp quét thế tuần hoàn cyclic voltammetry (CV), quét điện thế tuyến tính linear sweep voltammetry (LSV) và chronoamperometry (CA) (CV) (VSP, bio- logic) với hệ 3 điện cực. Hệ 3 điện cực sử dụng trong nghiên cứu hoạt tính xúc tác điện hóa của điện cực gồm: điện cực làm việc gồm mẫu được phủ lên điện cực lõi Pt đường kính 3mm. Dung dịch sử dụng cho quá trình khảo sát điện hóa là dung dịch kiềm KOH 0,1M..

Durability of carbon/conducting polymer composite supported Pt catalysts prepared by supercritical carbon dioxide deposition

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The pre- pared catalyst was characterized by using BET, XRD, TGA, and TEM and the electrochemical characterization was achieved by using cyclic voltammetry (CV).. The nitrogen adsorption/desorption isotherm of the synthesized PPy/C composite is given in Figure 1. The multipoint BET surface area of the composite material was 77 m 2 /g. The plain carbon surface area (250 m 2 /g) decreased with the addition of PPy because of blockage of the pores of the carbon with PPy.

Cellulose Phủ Nickel Ứng Dụng Cho Quá Trình Oxi Hóa Điện Hóa Ethanol

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Tính chất điện hóa đối với ethanol của mẫu được khảo sát bằng phương pháp quét thế tuần hoàn cyclic voltammetry (CV), quét điện thế tuyến tính linear sweep voltammetry (LSV) và chronoamperometry (CA) (CV) (VSP, bio- logic) với hệ 3 điện cực. Hệ 3 điện cực sử dụng trong nghiên cứu hoạt tính xúc tác điện hóa của điện cực gồm: điện cực làm việc gồm mẫu được phủ lên điện cực lõi Pt đường kính 3mm. Dung dịch sử dụng cho quá trình khảo sát điện hóa là dung dịch kiềm KOH 0,1M.

TiO2 Fabricated from Vietnamese Ilmenit Applying for Battery Anode

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To investigate the electrochemical properties of prepared TiO 2 and effect of AB additive on the electrochemical properties of the TiO 2 /AB and TiO 2 /Fe 2 O 3 /AB electrodes, cyclic voltammetry (CV) were carried out in three-electrode glass cells with TiO 2 or TiO 2 /Fe 2 O 3 or TiO 2 /AB or TiO 2 /Fe 2 O 3 /AB electrode as the working electrode, Pt mesh as the counter electrode, and Hg/HgO as the reference electrode.

Multiwall carbon nanotube paste electrode as a sensor for sensitive determination of deferasirox in the presence of uric acid: Application for the analysis of pharmaceutical and biological samples

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In this paper, we have focused on the electrochemical oxidation of deferasirox at a multiwall carbon nanotube paste electrode (MWCNTPE) using cyclic voltammetry (CV) and chronoamperometry techniques.. We have also discussed the capability of this electrode for sensitive determination of deferasirox using differ- ential pulse voltammetry. Surface morphology of the MWCNTPE and CPE.

Electrochromic properties of PANI/TiO2 nanocomposite films prepared by electropolymerization

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Figure 3 shows the cyclic voltammetry (CV) curve in 0.1MLiClO 4 + PC of a PANI/nc-TiO 2 /ITO film served as the working electrode (WE) where the CV spectra was recorded at the fifth cycle. From this figure one can see a nearly symmetrical shape of the CV spectra toward the coordinates (x = 0.60.

Voltammetric determination of glycopyrrolate in a pharmaceutical formulation

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The aim of this work is the determination of glycopyrrolate in pharmaceutical preparations using different voltammetric techniques, namely linear sweep voltammetry (LSV), cyclic voltammetry (CV), and differential pulse voltammetry (DPV).. The CV method was used to study the electroactivity of glycopyrrolate.

Disposable carbon electrodes as an alternative for the direct voltammetric determination of alkyl phenols from water samples

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For electrochemical measurements, cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were used.. The stock solutions of the corresponding alkyl phenols were of 0.216 mg × mL −1 NP, 0.147 mg × mL −1 TOP, and 0.164 mg × mL −1 OP, respectively, in 50:50 (w/w) water–methanol mixture..

Evaluation of the fuel cell performances of TiO2/PAN electrospun carbon-based electrodes

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In addition, the electrochemical characterization of the PGE and TiO 2 +PAN/PGE electrodes was investigated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) measurements. Finally, the long-term FC measurement results of the developed electrodes showed reasonable recovery values and found to be promising and practically feasible.. Schematic diagram of the electrospinning setup and FC design..

Electrochemical evaluation of the desloratadine at bismuth film electrode in the presence of cationic surfactant: Highly sensitive determination in pharmaceuticals and human urine by Linear sweep-cathodic stripping voltammetry

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It was stated that DESL gave a reduction peak on the hanging mercury drop electrode (HDME) at approximately –1.48 V in BR buffer (pH . 9.0) medium on the glassy carbon electrode (GCE) by cyclic voltammetry (CV) and SWV techniques [22].

Electrochemical monitoring of the interaction between mitomycin C and DNA at chitosan–carbon nanotube composite modified electrodes

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Different electrochemical techniques (cyclic voltammetry (CV), differential pulse voltammetry (DPV), square wave voltammetry, electrochemical impedance spectroscopy etc.) have been used for monitoring the interaction of anticancer drugs with DNA. 14 − 17 The interaction be- tween the anticancer drug epirubicin and DNA using differential pulse voltammetry and cyclic voltammetry at a carbon paste electrode was studied by Erdem et al. 18 Electrochemical investigation of the interaction between titanocene

Differential pulse voltammetric determination of dopamine using Pd nanoparticles deposited on (3-aminopropyl)triethoxysilane functionalized CeO2 nanoparticles

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Moreover, the electrochemical behavior of the Nf/Pd@CeO 2 -APTES nanocomposites was investigated using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and differential pulse voltammetry (DPV). The fabricated sensor based on Nf/Pd@CeO 2 -APTES displayed very good electrocatalytic ability for the determination of DA and a notable linear range, low limit of detection, and satisfactory sensitivity and selectivity when compared with the studies reported previously..

An ionic liquid/bismuth film-modified sensor for the electrochemical detection of cefixime

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The IL/Bi modification process was analyzed by scanning electron microscopy (SEM) and electrochemical methods such as cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). Next, the analytical performance of the novel sensor was evaluated by square wave voltammetry (SWV) in pharmaceutical samples with high accuracy. Electrochemical characterization of IL/Bi/PGE. This situation indicates facilitated conductivity and an electron transfer process at the IL/Bi-modified PGE..

Synthesis and electrochemistry of phthalocyanines bearing [(3,4-dimethoxybenzyl)oxy] groups

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The cyclic voltammetry (CV) and square wave voltammetry (SWV) of phthalocyanines 4–7 were recorded in a dichloromethane DCM/TBAP electrolyte system on a Pt working electrode. The results of voltammetric analyses are given in the Table. Metallophthalocyanines such as MnPc, CoPc, FePc, and TiOPc, having a metal that possesses energy levels lying between the HOMO and the LUMO of the Pc ligand, in general exhibit redox processes centered on the metal.

Investigation of electrochemical behavior of potassium ferricyanide/ferrocyanide redox probes on screen printed carbon electrode through cyclic voltammetry and electrochemical impedance spectroscopy

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The cyclic voltammograms of the redox probes in the potential range of − 0.3 V and 0.5 V (vs. Different concentrations of each redox probe (0.01 mM, 0.1 mM, 1 mM, 10 mM, and 100 mM) were used in the cyclic voltammetry analyses to evaluate the concentration influence on the cyclic behavior of the SPCE-redox probe system. (a) The resulting cyclic voltammogram showing the measurement of the peak potentials.

Development of a spiramycin sensor based on adsorptive stripping linear sweep voltammetry and its application for the determination of spiramycin in chicken egg samples

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Cyclic voltammetry and determination of spiramycin at water/oil ınterfaces. Research on electrochemical behavior of spiramycin. Electrochemical study of spiramycin and its determination in pharmaceutical preparation. doi: 10.3390/s150922490. doi: 10.1016/j.talanta . doi: 10.1016/j.electacta . doi: 10.1016/j.microc . doi: 10.1016/j.msec . 10.1016/j.carbon .

Electrochemical responses of flexible graphite in H2SO4

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Impact of sample thickness and potential limits on cyclic voltammetry response at 25 mV/s scan rate, 1.12 g/cm 3 density.. Cyclic voltammetry of 0.25 mm thick electrodes after 10 cycles at 25 mV/s scan rate with and without edge sealing.. Figure 7 provides another example of the effect of edge sealing on current response for resin impregnated expanded graphite.

Luận văn Thạc sĩ Sinh học: Nghiên cứu tạo Biosensor xác định kháng nguyên HER2

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Thế vòng (CV-cyclic voltammetry) của điện cực Au trong dung dịch. Thế vòng (CV) và sóng vuông (SWV) cuả điện cực Au và Au-MPA. Thế vòng (CV) và sóng vuông (SWV) cuả điện cực Au và Au-. voltammetry - SWV) của điện cực Au và Au-MPA-Apt-BSA 65. Thế vòng (CV) của điện cực Au tại các bước sửa đổi 66 Hình 3.15. Đồ thị liên quan giữa thế và dòng đôi với các điện cực có bề mặt. biến đổi khác nhau khi xác định theo kỹ thuật quét sóng vuông (SWV) của điện cực vàng tại các bước biến đổi.

Rapid and on-site electrochemical detection of bisphenol A and arsenic in drinking water using a novel electrode array

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Bare gold sensor produced an expected cyclic voltammetry curve with oxidation-reduction peaks using the potassium ferricyanide solution in KCl, whereas normal and 125 ng mL − 1 arsenic-contaminated water samples resulted in completely different cyclic voltammetry profiles, as shown in Figure 5..