نتایج جستجو برای: Modified graphite electrode

تعداد نتایج: 322357  

Journal: :journal of nanostructures 2013
m. mazloum-ardakani a. r. khoshroo

in this work, sol-gel method was used tosynthesize titanium dioxide nanoparticles (tio2). the tio2nanoparticles was characterized by scanning electron microscopy (sem), x-ray diffraction (xrd) and bet technique.the tio2 and coumarin derivative (7-(1,3-dithiolan-2-yl)-9, 10-dihydroxy-6h-benzofuro [3,2-c] chromen-6-on) were incorporated in a graphite composite electrode. the resulting modified el...

Journal: :international journal of nano dimension 0
r. m. a. tehrani department of chemistry, shahre rey branch, islamic azad university, 18155-144, tehran, iran. m.r. allahgholi ghasri department of chemistry, shahre rey branch, islamic azad university, 18155-144, tehran, iran. f. bakhtiarzadeh department of chemistry, shahre rey branch, islamic azad university, 18155-144, tehran, iran. n. tafreshi department of chemistry, shahre rey branch, islamic azad university, 18155-144, tehran, iran. s. ab ghani pusat pengajian sains kimia, universiti sains malaysia, 11800 usm, pulau pinang, malaysia.

for the first time this study reported the success of using nanocrystalline hexagonal close-packed (hcp) nickel (ni) modified composite graphite (cg) electrode (hcp-nano ni/cg) for the electrocatalytic oxidation of glycerol in alkaline medium (0.1 m koh). the hcp-nano ni/cg electrode had an improve response and specificity on the electrocatalytic oxidation of glycerol over the bare cg. the elec...

Journal: :international journal of nanoscience and nanotechnology 2010
s. a. shojaosadati f. ganji b. zahedi h. a. rafiee-pour h. ghourchian

carbon nanotubes are regarded as promising building blocks for the construction of novel biosensors due to their unique properties like fast electron transfer, high electrocatalytic effect and good biocompatibility. in the present study, the effect of different chemical oxidation’s methods of multi-walled carbon nanotubes (mwcnts) on the electrochemical behavior of modified graphite electrodes ...

A. R. Khoshroo M. Mazloum-Ardakani,

In this work, sol-gel method was used tosynthesize titanium dioxide nanoparticles (TiO2). The TiO2nanoparticles was characterized by Scanning Electron Microscopy (SEM), x-ray diffraction (XRD) and BET technique.The TiO2 and coumarin derivative (7-(1,3-dithiolan-2-yl)-9, 10-dihydroxy-6H-benzofuro [3,2-c] chromen-6-on) were incorporated in a graphite composite ele...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2001
jafar hosseinalizadeh khorasani mohammad kazem amini hamideh ghanei shahram tangestaninejad

a flow injection method is reported for the determination of ascorbic acid based on amperometric detection, using a cobalt(ii) phthalocyanine (copc) modified graphite-epoxy electrode. the amperometric respons was evaluated with regard to ph, ionic strength of the electrolyte, flow rate of the carrier solution, injected sample volume and conditioning time of the electrode. the limit of detection...

In this work, for the first time poly (benzoquinone) chromium (III) complex (PBQC) was synthesized with a one pot, one step, simple and fast method. This novel polymer was used for modification of graphite paste electrode for electrochemical determination of Mesalazine. Moreover, this novel modifier was characterized by Fourier transform infrared spectroscopy, Field emission scanning electron m...

F. Bakhtiarzadeh M.R. Allahgholi Ghasri N. Tafreshi R. M. A. Tehrani, S. Ab Ghani

For the first time this study reported the success of using nanocrystalline hexagonal close-packed (hcp) nickel (Ni) modified composite graphite (CG) electrode (hcp-nano Ni/CG) for the electrocatalytic oxidation of glycerol in alkaline medium (0.1 M KOH). The hcp-nano Ni/CG electrode had an improve response and specificity on the electrocatalytic oxidation of glycerol over the bare CG. The elec...

F. Bakhtiarzadeh M.R. Allahgholi Ghasri N. Tafreshi R. M. A. Tehrani, S. Ab Ghani

For the first time this study reported the success of using nanocrystalline hexagonal close-packed (hcp) nickel (Ni) modified composite graphite (CG) electrode (hcp-nano Ni/CG) for the electrocatalytic oxidation of glycerol in alkaline medium (0.1 M KOH). The hcp-nano Ni/CG electrode had an improve response and specificity on the electrocatalytic oxidation of glycerol over the bare CG. The elec...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2011
Meissam Noroozifar Mozhgan Khorasani-Motlagh Hamed Tavakkoli

The present work describes the construction of a new modified graphite-multiwall carbon nanotube paste electrode by casting the appropriate mixture of tetraheptylammonium iodide-iodine as a new modifier. The modified paste electrode was used for the determination of ascorbic acid (AA) in a phosphate buffer solution (pH 2.0). When compared to activated carbon, a graphite and multiwall carbon nan...

2000
Ping Yu Bala S. Haran James A. Ritter Ralph E. White Branko N. Popov

A Pd-encapsulated graphite electrode was used as the negative electrode in Li-ion cells. Through dispersion of ultrafine nanoparticles of palladium on the surface of graphite, the interfacial properties of the carbon surface were modified. The presence of the palladium Ž . dramatically reduces the initial irreversible capacity of the graphite in propylene carbonate PC -based electrolyte. Pallad...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید