Results 61 to 70 of about 30,745 (308)

Ion selective electrodes based on methyl 6-(hydroxymethyl) picolinate ionophore for electrochemical determination of Fe(III) in petroleum water samples

Egyptian Journal of Petroleum, 2019
A potentiometric method was described for the determination of iron(III) in petroleum water samples using modified carbon paste and screen-printed sensors.
Tamer Awad Ali, Gehad G. Mohamed, Hassan Eldessouky, A-El. Adeeb   +3 more
doaj   +1 more source

Calixarene bulk modified screen-printed electrodes (SPCCEs) as a one-shot disposable sensor for the simultaneous detection of lead(II), copper(II) and mercury(II) ions: Application to environmental samples [PDF]

, 2017
Calixarene bulk modified screen-printed electrodes (SPCCEs) have been designed, fabricated and utilized as one-shot disposable electrochemical sensors towards the simultaneous measurement of toxic metal ions lead(II), copper(II) and mercury(II) within ...
Banks, C.E., Foster, C.W., Malingappa, P., N. S., A.K., Shivappa Adarakatti, P.   +4 more
core   +1 more source

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

A Gold Nanoparticle-Modified Carbon Paste Electrode as a Sensor for Simultaneous Determination of Acetaminophen and Atenolol

International Journal of Electrochemical Science, 2010
A simple, rapid and sensitive electrochemical method for simultaneous determination of acetaminophen and atenolol was developed in Britton-Robinson buffer solution on a gold nanoparticles carbon paste electrode (GN-CPE).
Mohsen Behpour, Sayed Mehdi Ghoreishi, Ebrahim Honarmand   +2 more
doaj   +1 more source

Carbon-paste nanocomposites as unconventional gate electrodes for electrolyte-gated organic field-effect transistors: electrical modulation and bio-sensing [PDF]

, 2019
Nanocomposite carbon-paste electrodes (NC-CPEs) have been investigated for the first time in electrolytegated organic field-e¿ect transistors (EGOFETs) as a replacement of conventional metal gate electrodes, using carbon nanotubes (CNTs) as a model ...
Baeza, Mireia, González Campo, Arántzazu, Leonardi, Francesca, Mas-Torrent, Marta, Muñoz, José, Riba Moliner, Marta, Özmen, Tayfun   +6 more
core   +3 more sources

Toward Scalable Solutions for Silver‐Based Gas Diffusion Electrode Fabrication for the Electrochemical Conversion of CO2 – A Perspective

Advanced Functional Materials, EarlyView.
In this study, the preparation techniques for silver‐based gas diffusion electrodes used for the electrochemical reduction of carbon dioxide (eCO2R) are systematically reviewed and compared with respect to their scalability. In addition, physics‐based and data‐driven modeling approaches are discussed, and a perspective is given on how modeling can aid ...
Simon Emken, K. Ashoke Raman, Alexander Bauer, Violeta Karyofylli, Eva Jodat, André Karl, Rüdiger‐A. Eichel   +6 more
wiley   +1 more source

Preparation and characterization of selective electrode for determination of copper ion(II)

Journal of Electrochemical Science and Engineering, 2016
Achemically modified carbon paste electrode with diphenyl carbazide the potentiometric determination of Cu(II) is demonstrated. The electrode exhibits linear response to Cu(II) over a wide concentration range (9.2×10−7-5.0×10−1) with Nernstian slope of ...
Salwa Fares Rassi
doaj   +1 more source

Electrochemical methods in pesticides control [PDF]

, 2004
The state of the art of voltammetric and amperometric methods used in the study and determination of pesticides in crops, food, phytopharmaceutical products, and environmental samples is reviewed.
Delerue-Matos, Cristina, Garrido, E. Manuela, Lima, J. L. F. C., Oliveira-Brett, A. M.   +3 more
core   +1 more source

Modulating Interfacial Potential Gradients in Metal−Carbon Catalysts via Phase‐Engineering for Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
It is elucidated that phase engineering of cobalt modulates the interfacial potential gradients of cobalt–carbon electrocatalysts, enhancing the intrinsic electrocatalytic performance. Modulating the dominant crystalline phase of cobalt from a hexagonal close‐packed to a face‐centered cubic enriches the electron density of carbon shells, thereby ...
Ji‐Oh Kim, Hengquan Guo, Seonghee Kim, Jae Bin Park, Seongwook Chae, Taekyun Kwon, Seungjo Hong, Byeong Jin Kim, Guadalupe Arturo De la Garza Gonzalez, Minjoon Park, Jae Ho Kim, Oi Lun Li, Seung Geol Lee, Jin Hong Lee   +13 more
wiley   +1 more source

Electrochemical Behavior and Determination of Fluconazole [PDF]

, 2011
The electrochemical behavior of fluconazole showed an irreversible oxidation process, with the electrochemical - chemical mechanism being highly dependent on the electrode material.
CORDEIRO, Diogo D., GIL, Éric de S., MATIAS, Ana E. B., SERRANO, Sílvia H. P.   +3 more
core   +1 more source