Search results for " electrodes"

showing 2 items of 72 documents

Electrochemical sensor for phosphate ions based on laser scriber reduced graphene oxide

2022

This preliminary work shows a new and innovative way to produce laser scribed reduced graphene oxide (LSGO) electrodes using different porous substrates (ranging from paper to plastic and fabric). The obtained electrodes were also tested as electrochemical sensors towards the detection of phosphate ions in water. To obtain the electrodes, a water suspension of GO was filtered on top of substrate (such as Whatman® filter paper) and a complete sensor was obtained from its reduction using a CO2 laser. The electrode is composed of working and counter electrodes made of LSGO and a reference electrode of a Ag/AgCl obtained by using a commercial AgCl conductive paste. Phosphate ions were detected …

voltammetrySettore ING-IND/23 - Chimica Fisica ApplicataElectrochemical sensorPhosphate ionSettore ING-IND/17 - Impianti Industriali MeccaniciVoltammetryPhosphate ionspaper based elecxtrodePaper based electrodesReduced graphene oxideEectrochemical sensorreduced graphene oxide2022 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
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Sustainable Supercapacitors Based on Polypyrrole-Doped Activated Biochar from Wood Waste Electrodes

2023

The synthesis of high-performance carbon-based materials from biomass residues for electrodes has been considered a challenge to achieve in supercapacitor-based production. In this work, activated biochar has been prepared as the active electrode material for supercapacitors (SCs), and an effective method has been explored to boost its capacitive performance by employing polypyrrole (PPy) as a biochar dopant. The results for physicochemical characterization data have demonstrated that PPy doping affects the biochar morphology, specific surface area, pore structure, and incorporation of surface functionalities on modified biochar. Biochar-PPy exhibited a surface area of 87 m2 g−1, while pris…

wood-based supercapacitorsbiohiilipuuhiilijätteetwood wastepolypyrrolesuperkondensaattoritelektroditMaterials Chemistrywood electrodespseudocapacitancepuu (luonnonmateriaalit)
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