نتایج جستجو برای: mwcnt gce

تعداد نتایج: 2541  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده شیمی 1393

ترکیب نانومتخلخل sba-15 دوپه شده با pd (pd-sba-15) به روش مستقیم سنتز شد. pd-sba-15 سنتزی توسط روش های طیف بینی پراش اشعه x (xrd)، میکروسکوپی الکترون روبشی (sem)، طیف بینی پراکنش انرژی (eds) و تکنیک bet مورد مطالعه قرار گرفت. ایزوترم واجذب گاز نیتروژن، اندازه تخلخل pd-sba-15 را کمتر از nm10 نشان داد. همچنین وجود pd توسط طیف بینی پراکنش انرژی تأیید گردید. به منظور مطالعه خواص الکتروکاتالیتیکیpd-...

Journal: :analytical and bioanalytical chemistry research 2015
molla tefera shimelis admassie merid tessema solomon mehretie

a sensor, based on multi-wall carbon nanotubes modified glassy carbon electrode (mwcnt/gce), was developed for determination of fenitrothion. determining the surface area of mwcnt/gce showed that this surface is three times more active than that of a glassy carbon electrode. the experimental parameters, such as the amount of mwcnts, ph of the fenitrothion solution, preconcentration potential an...

2013
Dan Zheng Sandeep Kumar Vashist Michal Marcin Dykas Surajit Saha Khalid Al-Rubeaan Edmond Lam John H.T. Luong Fwu-Shan Sheu

: A simple procedure was developed for the fabrication of electrochemical glucose biosensors using glucose oxidase (GOx), with graphene or multi-walled carbon nanotubes (MWCNTs). Graphene and MWCNTs were dispersed in 0.25% 3-aminopropyltriethoxysilane (APTES) and drop cast on 1% KOH-pre-treated glassy carbon electrodes (GCEs). The EDC (1-ethyl-(3-dimethylaminopropyl) carbodiimide)-activated GOx...

Journal: :journal of nanostructures 2014
l. fotouhi m. zabeti

the electrochemical oxidation of sulfamethazine (smz) has been studied at a multi-walled carbon nanotubes modified glassy carbon electrode (mwcnt-gce) by cyclic voltammetry. this modified electrode (mwcnt-gce) exhibited excellent electrocatalytic behavior toward the oxidation of smz as evidenced by the enhancement of the oxidation peak current and the shift in the anodic potential to less posit...

A sensor, based on multi-wall carbon nanotubes modified glassy carbon electrode (MWCNT/GCE), was developed for determination of fenitrothion. Determining the surface area of MWCNT/GCE showed that this surface is three times more active than that of a glassy carbon electrode. The experimental parameters, such as the amount of MWCNTs, pH of the fenitrothion solution, preconcentration potential an...

L. Fotouhi, M. Zabeti

The electrochemical oxidation of sulfamethazine (SMZ) has been studied at a multi-walled carbon nanotubes modified glassy carbon electrode (MWCNT-GCE) by cyclic voltammetry. This modified electrode (MWCNT-GCE) exhibited excellent electrocatalytic behavior toward the oxidation of SMZ as evidenced by the enhancement of the oxidation peak current and the shift in the anodic potential to less posit...

Journal: :journal of physical & theoretical chemistry 2010
navid nasirizadeh mohammad saber tehrani m. reza. shishehbore ah karimi mohammad. a. shirgholami

a new hydroxylamine sensor has been fabricated by immobilizing oxadiazol denvative at the surface ol aglassy carbon electrode (gce) modified by multi-wall carbon nanotube (mivcnt). the adsorbed thin illms oroxadiazol derivative on the mwcnt modified gce show a pair of peaks with surface confined characierisnus.the oxadiazol derivative mwcni (omwcnt) modified gce shows highly catalytic activity ...

Journal: :Electrochem 2021

In this work, an electrochemical sensor (GCE/MWCNT/Fe3O4@SiO2) based on a composite of multiwalled carbon nanotubes (MWCNT) and Fe3O4@SiO2 (MMN) nanocomposite glassy electrode (GCE) was developed for the detection tetracycline (TC). The formed promoted increased signal stability sensor, combining its individual characteristics such as high electrical conductivity large surface area. material ch...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده شیمی 1392

پلی (اورتو- متوکسی آنیلین) (poma) از طریق الکتروپلیمریزاسیون بر سطح الکترود کربن شیشه ای (gce) اصلاح شده با نانولوله های کربنی چند دیواره (mwcnt) تهیه شد. پاسخ الکتروشیمیایی فیلم پلیمر تهیّه شده حداقل 6 برابر بزرگتر از پاسخ پلیمر تهیه شده در سطح gce تنها است. نانوذرّات پلاتین از محلول m 0/5 سولفوریک اسید حاوی mm0/5 h2ptci6 با اعمال پتانسیل ثابت 0/2- ولت نسبت به m)3 ag|agcl|kcl) در سطح این الکترود...

2017
Rajasekhar Chokkareddy Natesh Kumar Bhajanthri Gan G. Redhi

In this present work, a glassy carbon electrode (GCE) was modified primarily with multiwalled carbon nanotubes (MWCNTs) and a composite of MWCNTs and titanium oxide nanoparticles (TiO₂NPs). The enzyme horseradish peroxidase (HRP) was immobilized to enhance the sensing ability of GCE. The proposed biosensor was used for the sensitive determination of isoniazid (INZ) in various pharmaceutical sam...

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