scholarly journals Electrochemical Impedance Analysis for Growth Process of Electrochemical Migration on Screen-Printed Silver Wiring Electrode

2012 ◽  
Vol 63 (11) ◽  
pp. 694-699
Author(s):  
Isao SHITANDA ◽  
Kazuya INOUE ◽  
Katsuhiro YAMAMOTO ◽  
Yoshinao HOSHI ◽  
Masayuki ITAGAKI
Keyword(s):  
Growth Process ◽  
Electrochemical Impedance ◽  
Impedance Analysis ◽  
Electrochemical Migration ◽  
Screen Printed

scholarly journals Electrochemical Impedance Analysis for Electrochemical Migration of Screen-printed Silver Wiring Electrodes

2009 ◽  
Vol 60 (5) ◽  
pp. 342-348 ◽  
Author(s):  
Isao SHITANDA ◽  
Katsuhiro YAMAMOTO ◽  
Kunihiro WATANABE ◽  
Masayuki ITAGAKI ◽  
Yasufumi ASANO
Keyword(s):  
Electrochemical Impedance ◽  
Impedance Analysis ◽  
Electrochemical Migration ◽  
Screen Printed

Characterizations of Synthetic 8mol% YSZ with Comparison to 3mol %YSZ for HT-SOFC

2020 ◽  
Vol 38 (4A) ◽  
pp. 491-500
Author(s):  
Abeer F. Al-Attar ◽  
Saad B. H. Farid ◽  
Fadhil A. Hashim
Keyword(s):  
Ionic Conductivity ◽  
Electrochemical Impedance ◽  
Structural Information ◽  
Impedance Analysis ◽  
High Energy ◽  
Yttria Stabilized Zirconia ◽  
X Ray Diffraction ◽  
Stabilized Zirconia ◽  
Powder Morphology ◽  
X Ray

In this work, Yttria (Y2O3) was successfully doped into tetragonal 3mol% yttria stabilized Zirconia (3YSZ) by high energy-mechanical milling to synthesize 8mol% yttria stabilized Zirconia (8YSZ) used as an electrolyte for high temperature solid oxide fuel cells (HT-SOFC). This work aims to evaluate the densification and ionic conductivity of the sintered electrolytes at 1650°C. The bulk density was measured according to ASTM C373-17. The powder morphology and the microstructure of the sintered electrolytes were analyzed via Field Emission Scanning Electron Microscopy (FESEM). The chemical analysis was obtained with Energy-dispersive X-ray spectroscopy (EDS). Also, X-ray diffraction (XRD) was used to obtain structural information of the starting materials and the sintered electrolytes. The ionic conductivity was obtained through electrochemical impedance spectroscopy (EIS) in the air as a function of temperatures at a frequency range of 100(mHz)-100(kHz). It is found that the 3YSZ has a higher density than the 8YSZ. The impedance analysis showed that the ionic conductivity of the prepared 8YSZ at 800°C is0.906 (S.cm) and it was 0.214(S.cm) of the 3YSZ. Besides, 8YSZ has a lower activation energy 0.774(eV) than that of the 3YSZ 0.901(eV). Thus, the prepared 8YSZ can be nominated as an electrolyte for the HT-SOFC.

Electrochemical Impedance Analysis of the Wear of Planographic Plates

CORROSION ◽  
1991 ◽  
Vol 47 (1) ◽  
pp. 67-73 ◽  
Author(s):  
M. W. Kendig ◽  
S. Breitweiser ◽  
E. Hudyma
Keyword(s):  
Electrochemical Impedance ◽  
Impedance Analysis

scholarly journals Potentiometric C2H4-Selective Detection on Solid-State Sensors Activated with Bifunctional Catalytic Nanoparticles

Chemosensors ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 274
Author(s):  
Fidel Toldra-Reig ◽  
Jose Manuel Serra
Keyword(s):  
Solid State ◽  
Electrochemical Impedance ◽  
Impedance Analysis ◽  
Selective Detection ◽  
Catalyst Nanoparticles ◽  
Cross Sensitivity ◽  
Car Exhaust ◽  
Catalytic Nanoparticles ◽  
Oxidation Properties ◽  
Insight Into

This work presents a solid-state ionic-based device to selectively detect C2H4 in car exhaust gases. The sensor consists of 8YSZ as the electrolyte and two electrodes: Fe0.7Cr1.3O3/8YSZ and LSM/8YSZ. The main aim of this work is to optimize the catalytic behavior of the working electrode to C2H4 and reduce cross-sensitivity toward CO and H2O. Several catalyst nanoparticles were infiltrated to tailor C2H4 adsorption and electrochemical oxidation properties while diminishing adsorption and conversion of other gas components such as CO. The infiltrated metal catalysts were selected, taking into account both adsorption and redox properties. Infiltration of Ti or Al, followed by a second infiltration of Ni, enabled the selective detection of C2H4 with low cross-sensitivity toward CO and H2O in a moist gas environment. Further insight into potentiometric C2H4 sensing is achieved by electrochemical impedance analysis of the electrodes activated with bifunctional catalysts.

Electrochemical impedance analysis of spray deposited CZTS thin film: Effect of Se introduction

2016 ◽  
Vol 58 ◽  
pp. 418-425 ◽  
Author(s):  
Swati J. Patil ◽  
Vaibhav C. Lokhande ◽  
Dong-Weon Lee ◽  
Chandrakant D. Lokhande
Keyword(s):  
Thin Film ◽  
Electrochemical Impedance ◽  
Impedance Analysis ◽  
Czts Thin Film

Electrochemical Impedance Analysis of Polyaniline Films on Electrodes

1987 ◽  
Vol 134 (12) ◽  
pp. 3078-3083 ◽  
Author(s):  
Israel Rubinstein ◽  
Eyal Sabatani ◽  
Judith Rishpon
Keyword(s):  
Electrochemical Impedance ◽  
Impedance Analysis ◽  
Polyaniline Films

Electrochemical Immunosensor Based on Highly Sensitive Amino Functionalized Graphene Nanoplatelets-Modified Screen Printed Carbon Electrode

2020 ◽  
Vol 833 ◽  
pp. 171-175
Author(s):  
Nurul Azurin Badruzaman ◽  
Mohd Azraie Mohd Azmi ◽  
Nur Azura Mohd Said
Keyword(s):  
Incubation Time ◽  
Electrochemical Impedance ◽  
Electrochemical Immunosensor ◽  
Graphene Nanoplatelets ◽  
Carbon Electrode ◽  
Functionalized Graphene ◽  
Working Electrode ◽  
Screen Printed Carbon Electrode ◽  
Rabbit Igg ◽  
Screen Printed

We presented here the development of an immunosensor based on graphene nanoplatelets-modified screen printed carbon electrode (SPCE) with incorporated rabbit IgG on the amino functionalized surface area. In order to improve sensitivity of working electrode, graphene-nanoplatelets solution was fabricated onto surface carbon working electrode. The effect of different (3-aminopropyl) triethoxysilane (APTES) concentrations (0.125, 0.5, 2 and 8% (v/v)) and incubation time of silanization (30, 60 and 90 min) were studied and compared. An electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) were used to characterize our immunosensor based. It is showed that the optimum APTES concentration which provides higher surface coverage and electron transfer rate was 2% concentration (v/v) at 60 min of incubation time. The modified surface was then evaluated by measuring immobilized rabbit IgG via indirect assay using horseradish peroxidase labelled secondary antibody. The optimum detection immobilized IgG was 0.05 mg/mL. These results indicate the potential for amino functionalized graphene nanoplatelets-modified SPCE in detecting protein biomarkers.

scholarly journals Diazonium-Modified Screen-Printed Electrodes for Immunosensing Growth Hormone in Blood Samples

Biosensors ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 88 ◽  
Author(s):  
Nan Li ◽  
Ari M. Chow ◽  
Hashwin V. S. Ganesh ◽  
Melanie Ratnam ◽  
Ian R. Brown ◽  
...  
Keyword(s):  
Growth Hormone ◽  
Photoelectron Spectroscopy ◽  
Electrochemical Impedance ◽  
Low Cost ◽  
High Sensitivity ◽  
Sample Volume ◽  
Screening Methods ◽  
Serum Samples ◽  
Potential Applicability ◽  
Screen Printed

Altered growth hormone (GH) levels represent a major global health challenge that would benefit from advances in screening methods that are rapid and low cost. Here, we present a miniaturized immunosensor using disposable screen-printed carbon electrodes (SPCEs) for the detection of GH with high sensitivity. The diazonium-based linker layer was electrochemically deposited onto SPCE surfaces, and subsequently activated using covalent agents to immobilize monoclonal anti-GH antibodies as the sensing layer. The surface modifications were monitored using contact angle measurements and X-ray photoelectron spectroscopy (XPS). The dissociation constant, Kd, of the anti-GH antibodies was also determined as 1.44 (±0.15) using surface plasmon resonance (SPR). The immunosensor was able to detect GH in the picomolar range using a 20 µL sample volume in connection with electrochemical impedance spectroscopy (EIS). The selectivity of the SPCE-based immunosensors was also challenged with whole blood and serum samples collected at various development stages of rats, demonstrating the potential applicability for detection in biological samples. Our results demonstrated that SPCEs provided the development of low-cost and single-use electrochemical immunosensors in comparison with glassy carbon electrode (GCE)-based ones.

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