Electrochemical investigation of copper-DTPI interactions

Date

2006-05-01

Author

Hicyilmaz, C
Altun, Naci Emre

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

218
views

0
downloads

The electrochemical behavior of copper in the absence and presence of a dithiophosphinate type collector, sodium diisobuthyldithiophosphinate (NaDTPI), was determined to investigate the interactions between a copper surface and NaDTPI as a function of pulp potential (Eh) and pH. The electrochemical studies were performed by Cyclic Voltammetry (CV) in the -355 to +1550 mV (SHE) potential range and at different pHs from slightly acidic to strongly alkaline conditions. The electrochemical studies were carried out for copper and DTPI alone as well as with DTPI added copper system. DTPI addition had considerable effects on the electrochemical behavior of copper. CuDTPI formation was the main reaction at all pHs through a mixed mechanism and oxidation of the copper surface was followed by a chemical reaction between copper and DTPI ions. Formation of a cupric metal-collector complex, Cu(DTPI)(2), was observed only in acidic conditions in the form of an unstable surface compound.

Subject Keywords

Electrochemistry, Materials Chemistry, General Chemical Engineering

URI

https://hdl.handle.net/11511/47633

Journal

JOURNAL OF APPLIED ELECTROCHEMISTRY

DOI

https://doi.org/10.1007/s10800-006-9114-2

Collections

Department of Mining Engineering, Article

Suggestions

OpenMETU
Core

Electrochemical copolymerization and characterization of dianilines linked by polyether bridge with aniline TİRKEŞ, SEHA; Önal, Ahmet Muhtar (Springer Science and Business Media LLC, 2010-04-01) Copolymer of aniline and triethylene glycol bis(o-aminophenyl) ether was synthesized by constant potential electrolysis. Cyclic voltammogram of the copolymer films recorded in the monomer-free electrolytic solution revealed that the redox behavior of the films approaches to that of poly(triethylene glycol bis(o-aminophenyl) ether) with increasing amount of triethylene glycol bis(o-aminophenyl) in the feed ratio. Copolymerization was investigated by in situ recording the changes in the electronic absorption ...
ELECTROLYSIS OF MGCL2 WITH A TOP INSERTED ANODE AND AN MG PB CATHODE GUDEN, M; Karakaya, İshak (Springer Science and Business Media LLC, 1994-08-01) High energy consumption in the production of magnesium by molten salt electrolysis is mainly due to the recombination of magnesium and chlorine. The large interelectrode distance used, in conventional techniques, to reduce the extent of 'back reaction', results in a significant potential drop. A laboratory cell that enables the operation with smaller interelectrode distance and easy separation of electrode products has been used to study electrolytic magnesium production. The cell features a top inserted gr...
Electrochemical and optical properties of novel terthienyl based azobenzene, coumarine and fluorescein containing polymers: Multicolored electrochromic polymers Yigit, Deniz; Udum, Yasemin Arslan; GÜLLÜ, Mustafa; Toppare, Levent Kamil (Elsevier BV, 2014-01-01) Three electroactive terthienyl based monomers, namely 1-phenyl-2-[4-(2,2':5',2 ''-terthien-3'-ylmethoxy)phenyl]diazene (TTAz), 4-(2,2':5',2 ''-terthien-3'-ylmethoxy)-2H-chromen-2-one (TTCo) and methyl 2-[3-oxo-6-(2,2':5',2 ''-terthien-3'-ylmethoxy)-3H-xanthen-9-yl] benzoate (TTFlo), were synthesized with good yields and their conducting polymers were electrochemically prepared on ITO electrode surfaces. The effect of chromophore type on electrochemical and optical properties of the polymers was investigated...
Spectroelectrochemical investigation of the anodic oxidation of dibenzo-18-crown-6 Cihaner, A; Önal, Ahmet Muhtar (Elsevier BV, 2004-10-01) Poly(dibenzo-18-crown-6) (poly-DB18C6) was synthesized by electrochemical oxidation of dibenzo-18-crown-6 (DB18C6) using a mixture of acetonitrile and dichloromethane as the solvent and tetrabutylammonium tetrafluoroborate (TBABF(4)) or tetrabutylammonium hexafluorophosphate (TBAPF(6)) as supporting electrolyte. The anodic polymerization of DB18C6 was investigated using in situ ESR and in situ UV-Vis spectroscopic techniques. Spectroelectrochemical (SPEL), properties and thermal analysis of the resulting po...
Electrochemical polymerization of a new low-voltage oxidized thienylenepyrrole-derivative and its electrochromic device application Carbas, Buket Bezgin; KIVRAK, Arif; TEKE, Ecem; Zora, Metin; Önal, Ahmet Muhtar (Elsevier BV, 2014-09-01) Synthesis of a new monomer, 2,5-bis-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-1-phenyl-1H-pyrrole (ENE), from pyrrole, iodobenzene and 3,4-ethylenedioxythiophene (EDOT), and its electropolymerization are reported. ENE was oxidized at a low oxidation potential (0.45 V vs. Ag/AgCl) and successfully electropolymerized in acetonitrile containing 0.1 M NaClO4 and LiClO4 electrolyte mixture. The resulting polymer, P(ENE), revealed five distinctive colors upon doping, which indicated that the polymer is multichro...

Citation Formats

C. Hicyilmaz and N. E. Altun, “Electrochemical investigation of copper-DTPI interactions,” JOURNAL OF APPLIED ELECTROCHEMISTRY, pp. 609–616, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47633.