Redox Processes in the Organic Phase during Cobalt Extraction with the bis(2,4,4-trimethylpentyl)dithiophosphinic Acid and Trioctyl Phosphine Oxide Mixtures

2015 ◽  
Vol 33 (3) ◽  
pp. 278-294 ◽  
Author(s):  
N. A. Grigorieva ◽  
I. Yu. Fleitlikh
Keyword(s):  
Organic Phase ◽  
Phosphine Oxide ◽  
Redox Processes ◽  
Dithiophosphinic Acid ◽  
Trioctyl Phosphine Oxide

The Effect of Ligands on CdSe Nanoparticle Films Deposited by EPD

2015 ◽  
Vol 1087 ◽  
pp. 304-308
Author(s):  
Mohamad Nizam Ishak ◽  
K.A. Yaacob ◽  
Ahmad Fauzi Mohd Noor
Keyword(s):  
Solar Cells ◽  
Cadmium Selenide ◽  
Phosphine Oxide ◽  
Electrophoretic Deposition ◽  
Tin Oxide ◽  
Ligand Exchange ◽  
Cdse Nanoparticles ◽  
Wavelength Shift ◽  
Cell Efficiency ◽  
Trioctyl Phosphine Oxide

Nanoparticle from group II-IV semiconductor nanoparticles is widely studied for solar cells. The ability to modify the surface of nanoparticle is significant to successful use in various applications. In this research, mercaptoundecionic acid (MUA) and trioctyl phosphine oxide (TOPO) were used as ligand for cadmium selenide (CdSe) nanoparticles. The wavelength shift to a shorter value observed due to decreasing size of CdSe nanoparticle after ligand exchange from TOPO to MUA. The electrophoretic deposition methods (EPD) have being employed to deposite CdSe nanoparticles films on fluorine doped tin oxide (FTO). The deposition voltages used are between 100 - 400 V for 15 minutes. From SEM results show the formation layer of CdSe nanoparticles capped with MUA is strong and porous as compared to CdSe nanoparticle capped with TOPO. MUA capped CdSe shows better cell efficiency compared to TOPO capped CdSe which is 0.1735 %.

Extraction of water by trioctyl phosphine oxide dissolved in o-oxylene

1971 ◽  
Vol 33 (6) ◽  
pp. 1889-1896 ◽  
Author(s):  
M.A. Lodhi ◽  
P.R. Danesi ◽  
G. Scibona
Keyword(s):  
Phosphine Oxide ◽  
Trioctyl Phosphine Oxide

Synergistic extraction of uranium(VI) by 2-hydroxy-1-naphthaldehyde thiosemicarbazone and several neutral donors

2003 ◽  
Vol 91 (10) ◽  
Author(s):  
S. Banerjee ◽  
M. Bhar ◽  
S. Basu
Keyword(s):  
Nitric Acid ◽  
Ethyl Acetate ◽  
Acid Medium ◽  
Phosphine Oxide ◽  
Extraction Constant ◽  
Dimethyl Sulphoxide ◽  
Nitric Acid Medium ◽  
Extraction Behaviour ◽  
Trioctyl Phosphine Oxide ◽  
Aqueous Nitric Acid

SummaryThe extraction behaviour of U (VI) from an aqueous nitric acid medium employing a 2-hydroxy-1-naphthaldehyde thiosemicarbazone in ethyl acetate has been studied in presence of different neutral donors like trioctyl phosphine oxide (TOPO), dimethyl sulphoxide (DMSO) and trioctyl amine (TOA). The extraction constant (log

scholarly journals The Formation and Extraction Equilibria of Several Manganese(II) β-Diketonates and Their Trioctyl-Phosphine Oxide Adducts

1977 ◽  
Vol 50 (12) ◽  
pp. 3415-3416 ◽  
Author(s):  
Tatsuya Sekine ◽  
Ryokichi Murai ◽  
Kazuhiko Takahashi ◽  
Shigehisa Iwahori
Keyword(s):  
Phosphine Oxide ◽  
Trioctyl Phosphine Oxide ◽  
Extraction Equilibria

Synergistic extraction of rare earths with bis(2,4,4-trimethyl pentyl) dithiophosphinic acid and trialkyl phosphine oxide

Talanta ◽  
1999 ◽  
Vol 50 (1) ◽  
pp. 79-85 ◽  
Author(s):  
M.L.P Reddy ◽  
J.R Bosco Bharathi ◽  
Smitha Peter ◽  
T.R Ramamohan
Keyword(s):  
Phosphine Oxide ◽  
Rare Earths ◽  
Synergistic Extraction ◽  
Dithiophosphinic Acid
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