highly improved methanol oxidation onto carbon paste electrode modified by nickel particles dispersed into poly (2,5-dimethylaniline) film
نویسندگان
چکیده
in this work, modification of carbon paste electrode surface with poly (2, 5-dimethyl aniline) (p-2,5-dma) by using electrochemical polymerization was described. then, transition metal ions of ni(ii) were incorporated into the polymer film by two ways. at first way, the polymeric modified electrode was immersed in 0.2 m niso4 solutions and the second way was carried out by electrodeposition of ni from acidic niso4 solution by using potentiostatically technique. the electrochemical characterization of both modified electrodes exhibit stable redox behavior of the ni(iii)/ni(ii) couple in naoh solution. the results show that the ni/p-2,5-dma films prepared by electrodeposition route behaves as better electrocatalysts methanol oxidation in 1.0 m naoh solution with respect to ni/p-2,5-dma prepared by accumulation of ni(ii) ions from the solution.
منابع مشابه
Highly improved methanol oxidation onto carbon paste electrode modified by nickel particles dispersed into poly (2,5-dimethylaniline) film
In this work, modification of carbon paste electrode surface with poly (2, 5-Dimethyl aniline) (P-2,5-DMA) by using electrochemical polymerization was described. Then, transition metal ions of Ni(II) were incorporated into the polymer film by two ways. At first way, the polymeric modified electrode was immersed in 0.2 M NiSO4 solutions and the second way was carried out by electrodeposition of ...
متن کاملA cheap and an efficient electrode for electrocatalytic oxidation of methanol with nickel particles dispersed into sodium dodecyl sulfate modified carbon paste electrode
A sodium dodecyl sulfate modified carbon paste electrode (SDS/CPE) was developed in this work based on the surface modification method. The modified electrode was prepared by immersing SDS/CPE in a nickel nitrate solution. This electrode showed a strong accumulation ability toward nickel ions. Then modified electrode was conditioned by potential recycling in a potential range of 0.2–0.8 V (vs. ...
متن کاملa cheap and an efficient electrode for electrocatalytic oxidation of methanol with nickel particles dispersed into sodium dodecyl sulfate modified carbon paste electrode
a sodium dodecyl sulfate modified carbon paste electrode (sds/cpe) was developed in this work based on the surface modification method. the modified electrode was prepared by immersing sds/cpe in a nickel nitrate solution. this electrode showed a strong accumulation ability toward nickel ions. then modified electrode was conditioned by potential recycling in a potential range of 0.2–0.8 v (vs. ...
متن کاملElectro-Catalytic Oxidation of Methanol at Ni(OH)2 Nanoparticles-Poly (o-Anisidine)/Triton X-100 Film onto Phosphotungstic Acid-Modified Carbon Paste Electrode
In this work, Phosphotungstic Acid modified Carbon Paste Electrode (PWA-CPE) is used as a substrate for electro-polymerization of o-Anisidine (OA). Also, Triton X-100 (TX-100) surfactant is used as an additive for electrochemical polymerization of OA onto the PWA-CPE, which is investigated as a novel matrix for dispersion of nickel species. The prepared electrodes are characterized by...
متن کاملElectrocatalytic Oxidation of Ethanol and Ethylene Glycol onto Poly (o-Anisidine)-Nickel Composite Electrode
In this work, poly (o-Anisidine) (POA) was prepared by consecutive potential cycling in an acidic monomer solution at the surface of Carbon Paste Electrode (CPE). Nickel ions were dispersed into the polymer by immersing the electrode in NiSO4 solution. The prepared Ni/POA/CPE was characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy, Atomic Force Mic...
متن کاملELECTROCHEMICAL OXIDATION OF ASCORBIC ACID MEDIATED BY CARBON NANOTUBES /Li/ CARBON PASTE MODIFIED SOLID ELECTRODE
Multi-walled carbon nanotube (MWCNT) was used to modify BPPG electrode because of its unique structure and extraordinary properties. MWCNT modified electrode exhibited obvious enhancing and electrocatalyzing effects to the oxidation of ascorbic acid using cyclic voltammetry technique. MWCNT was bonded on BPPG electrode surface using carbon paste with ratio of 30% (w/w) carbon paste (binder): 70...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
caspian journal of chemistryناشر: university of mazandaran
ISSN 1735-0611
دوره 2
شماره 1 2013
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023