BLEND OF METAL OXIDES AND POLYANILINE ON PLATINUM ELECTRODES FOR DISSOLVED OXYGEN SENSORS

نویسندگان

چکیده

In this study, we report the detection of dissolve oxygen (DO) by using a blend Ruthenium oxide and polyaniline (PANI) coated on platinum electrodes. Optical properties PANI were characterized Ultraviolet - Visible (UV-Vis) Fourier-transform infrared (FTIR) spectroscopy. order to study sensitivity thin films PANI: blend, cyclic voltammetry (CV) measurements was performed with electrodes oxide. The electrolyte solutions prepared from phosphate buffer had salinity 20‰ pH 7.3. CV carried out when put in which various DO concentrations purging pure nitrogen gases. experiments measured commercial dissolved probe. correlation between current determined. effect blending ratio metal electrochemical signal also specified. results showed that coating exhibited high possibility as sensor for low levels aqueous phase.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

application and construction of carbon paste modified electrodes developed for determination of metal ions in some real samples

ساخت الکترودهاِی اصلاح شده ِیکِی از چالشهاِی همِیشگِی در دانش شیمِی بوِیژه شیمِی تجزیه مِی باشد ،که با در نظر گرفتن سادگِی ساخت، کاربردی بودن و ارزان بودن روش مِی توان به باارزش بودن چنِین سنسورهاِی پِی برد.آنچه که در ادامه آورده شده به ساخت و کاربرد الکترودهاِی اصلاح شده با استفاده از نانو ذرات در اندازه گِیرِی ولتامترِی آهن وکادمِیم اشاره دارد. کار اول اختصاص دارد به ساخت الکترود خمِیر کربن اصلاح شده با لِیگاند داِ...

15 صفحه اول

Fabrication and Characterization of Polymer Blend Doped With Metal Carbide Nanoparticles for Humidity Sensors

Nanocomposites films of (polymer blend-ceramics) were prepared from (PVA-PAA) blend and (PVA-PAA) blend doped with niobium carbide nanoparticles for humidity sensors have low cost, easy fabrication, high sensitivity, lightweight and high corrosion resistance. The structural, electrical and optical properties of (PVA-PAA-NbC) nanocomposites have been studied. The D.C electrical properties of (PV...

متن کامل

Electrocatalytic oxidation of methanol on platinum modified polyaniline electrodes

Electrocatalytic oxidation of methanol on Pt modified polyaniline electrodes was investigated with the aim of developing highly active composite electrodes for direct methanol fuel cells. Cyclic voltammetry and chronoamperometry were used to evaluate the catalytic activity in sulfuric acid solutions containing methanol. Pt / polyaniline modified carbon electrodes showed higher catalytic activit...

متن کامل

Oxygen Sensors Based on Screen Printed Platinum and Palladium Doped Indium Oxides

Platinum and palladium doped indium oxide sensors have been successfully fabricated by a screen printing method and tested as oxygen sensors at low temperature (150–400 °C) in a humid environment (~80–85% RH). The sensors, complying with a power law relationship, showed good differentiation at lower temperatures with highest response observed at 200 °C. Platinum had sensitivity of 2.2% per %O2 ...

متن کامل

The dynamic response of optical oxygen sensors and voltammetric electrodes to temporal changes in dissolved oxygen concentrations

Accurately measuring dissolved oxygen concentrations in fresh and salt water environments has long been an interdisciplinary priority. Many methodologies exist, including two very promising new ones, optical fluorescence quenching optrodes (or optodes) and solid-state voltammetric electrodes. In this study we compare the responsiveness of these two techniques to dynamic changes in dissolved oxy...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Engineering and technology journal

سال: 2021

ISSN: ['2456-3358']

DOI: https://doi.org/10.47191/etj/v6i6.05