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oe1(光电查) - 科学论文

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?? 中文（中国） ▾

  • Iridium oxide (IV) nanoparticle-based electrocatalytic detection of PBDE

    摘要： Polybrominated diphenyl ethers (PBDEs) are a type of flame retardants which are currently banned in EU and USA due their hazardousness for humans and mammals. However, these compounds were highly used during more than 30 years and still persist in the environment since they are resistant to degradation. Herein we present a biosensor for the detection of PBDEs using screen printed carbon electrodes (SPCEs) based on the electrochemical monitoring of water oxidation reaction (WOR) catalyzed by iridium oxide (IV) nanoparticles (IrO2 NPs). Our assay shows a limit of detection of 21.5 ppb of PBDE in distilled water. We believe that such an IrO2 NPs-based electrocatalytic sensing system can lead to a rapid, sensitive, low cost and miniaturizable device for the detection of PBDEs.

    关键词： PBDEs,Electrocatalysis,Iridium Oxide Nanoparticles,Flame retardants,Screen Printed Carbon Electrodes

    更新于2025-09-09 09:28:46

  • Electrochemical Effects of Depositing Iridium Oxide Nanoparticles onto Conductive Woven and Nonwoven Flexible Substrates

    摘要： This Article reports methods to deposit iridium oxide nanoparticles (IrOx NPs) onto ?exible materials for charge storage and the stable charge?discharge mechanism. In this work, IrOx NPs were electrodeposited onto commercially available ?exible surfaces of both knit and nonwoven cotton and nonwoven carbon-based (carbon nanotubes and graphene) textile substrates. Carbon-coated cotton materials were fabricated by reducing graphene oxide on fabric. Flexible electrode materials were fabricated by either reducing graphene oxide on cotton fabric or binding carbon nanotubes/graphene into a free-standing platform. The IrOx NPs were then electrodeposited onto ?exible platform samples by applying a positive potential to the fabric. After deposition, the resultant speci?c capacitance of the materials increased within the range from 192% to 2747% and was stable for over 1000 charge and discharge cycles.

    关键词： ?exible materials,iridium oxide nanoparticles,?exible substrates,electrodeposition

    更新于2025-09-04 15:30:14