نتایج جستجو برای: pedot modified electrode

تعداد نتایج: 310386  

2011
Sukeri Anandhakumar Jayaraman Mathiyarasu Kanala Lakshmi Narasimha Phani Venkataraman Yegnaraman

In this work, we report the simultaneous determination of cadmium and lead using glassy carbon electrodes (GCE) modified by poly(3,4-ethylenedioxythiophene) (PEDOT) for linear sweep anodic stripping voltammetry (LSASV). The modification allows metal detection without involving oxygen removal, mechanical stirring and introduction of alloying additions such as Hg, Bi, Sb, etc. during the pre-conc...

Journal: :Journal of materials chemistry. A 2017
E Mitraka M J Jafari M Vagin X Liu M Fahlman T Ederth M Berggren M P Jonsson X Crispin

The conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) has shown promise as air electrode in renewable energy technologies like metal-air batteries and fuel cells. PEDOT is based on atomic elements of high abundance and is synthesized at low temperature from solution. The mechanism of oxygen reduction reaction (ORR) over chemically polymerized PEDOT:Cl still remains controversial with ...

Journal: :Materials advances 2021

Electro-polymerized PEDOT film on a graphene-modified electrode is demonstrated as selective electrochemical nicotine sensor. Nicotine was detected with high selectivity and real sample analysis carried out.

2013
Jan Kafka Steen Skaarup Oliver Geschke Niels B. Larsen

We present a reproducible fast prototyping procedure based on micro-drilling to produce homogeneous tubular ultramicroelectrode arrays made from poly(3,4-ethylenedioxythiophene) (PEDOT), a conductive polymer. Arrays of Ø 100 µm tubular electrodes each having a height of 0.37 ± 0.06 µm were reproducibly fabricated. The electrode dimensions were analyzed by SEM after deposition of silver dendrite...

Journal: :The Analyst 2014
Sthitaprajna Dash N Munichandraiah

Nanodendritic Pd electrodeposited on poly(3,4-ethylenedioxythiophene) (PEDOT) modified Pd nanodendrite electrodes has been studied for electroanalysis of As(III) in 1 M HCl solution. The Pd nanodendrites are grown on a porous thin film of PEDOT by electrodeposition process. Pd-PEDOT/C electrodes are characterized by physicochemical and electrochemical studies. Cyclic voltammetry studies show th...

Journal: :ACS nano 2011
Ran Liu Jonathon Duay Sang Bok Lee

The formation mechanism of a coaxial manganese oxide/poly(3,4-ethylenedioxythiophene) (MnO(2)/PEDOT) nanowire is elucidated herein by performing electrodeposition of MnO(2) and PEDOT on Au-sputtered nanoelectrodes with different shapes (ring and flat-top, respectively) within the 200 nm diameter pores of an anodized aluminum oxide (AAO) template. It is found that PEDOT prefers to grow on the sh...

2016
Celia García-Hernández Cristina García-Cabezón Fernando Martín-Pedrosa José Antonio De Saja María Luz Rodríguez-Méndez

The sensing properties of electrodes chemically modified with PEDOT/PSS towards catechol and hydroquinone sensing have been successfully improved by combining layers of PEDOT/PSS with layers of a secondary electrocatalytic material such as gold nanoparticles (PEDOT/PSS/AuNPs), copper phthalocyanine (PEDOT/PSS/CuPc) or lutetium bisphthalocyanine (PEDOT/PSS/LuPc2). Layered composites exhibit syne...

Journal: :Journal of Electrochemical Science and Engineering 2022

In the present work, a nanocomposite of two-dimensional WSe2 nanosheets with poly(3,4‑ethylenedioxythiophene (WSe2@PEDOT) was prepared by facile hydrothermal method and characterized in terms structural morphological analyses. This nano­composite used to modify glassy carbon electrode for construction an electrochemical sensing platform simultaneous determination dopamine (DA) uric acid (UA) pr...

2016
Qing Xu Sasanka Dalapati Donglin Jiang

Crystalline porous covalent organic frameworks (COFs) with suitable redox-active sites were found to be useful as electrodes for capacitive energy storage. However, the bottleneck issues of COFs, i.e., their poor electrical conductivity and instability, greatly limit their practical implementation. Now, a strategy has been developed to overcome these obstacles and enable the use of COFs for hig...

Journal: :Journal of neural engineering 2011
Kip A Ludwig Nicholas B Langhals Mike D Joseph Sarah M Richardson-Burns Jeffrey L Hendricks Daryl R Kipke

We investigated using poly(3,4-ethylenedioxythiophene) (PEDOT) to lower the impedance of small, gold recording electrodes with initial impedances outside of the effective recording range. Smaller electrode sites enable more densely packed arrays, increasing the number of input and output channels to and from the brain. Moreover, smaller electrode sizes promote smaller probe designs; decreasing ...

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