5349-32-6Relevant academic research and scientific papers
Electrically conducting palladium selenide (Pd4Se, Pd17Se15, Pd7Se4) phases: Synthesis and activity towards hydrogen evolution reaction
Kukunuri, Suresh,Austeria, P. Muthu,Sampath
, p. 206 - 209 (2016)
Electrically conducting, continuous films of different phases of palladium selenides are synthesized by the thermolysis of single source molecular precursors. The films are found to be adherent on flat substrates such as glass, indium tin oxide and glassy carbon and are stable under electrochemical conditions. They are electrocatalytically active and in particular, for hydrogen evolution reaction. Catalytic activities with low Tafel slopes of 50-60 mV per decade are observed.
Solvent free nucleophilic selenocyanation with [bmim][SeCN]. Direct access to perfluoroalkylselenide compounds
De-Zordo Banliat, Arnaud,Grollier, Kévin,Damond, Aurélie,Billard, Thierry,Dagousset, Guillaume,Magnier, Emmanuel,Pégot, Bruce
, (2021/11/08)
Available online-1-n-butyl-3-methylimidazolium selenocyanate ([bmim][SeCN]) proved to be a very efficient reagent for selenocyanation of alkyl halides. As part of an eco-friendly process, no organic solvents were used during the transformation and reaction times are reduced by using microwave as a heating source. The ionic liquid was carefully recycled in two different ways. Selenocyanate compounds were successfully transformed into trifluoromethylselenides in a one-pot two step procedure.
Robust, metallic Pd17Se15 and Pd7Se4 phases from a single source precursor and their use as counter electrodes in dye sensitized solar cells
Kukunuri, Suresh,Karthick,Sampath
supporting information, p. 17144 - 17153 (2015/08/24)
Thin films of conducting palladium selenide phases (Pd17Se15 and Pd7Se4) are prepared using a single source molecular precursor by thermolysis. Varying the mole ratios of palladium and selenium precursors results in palladium organo-selenolate complexes which on thermolysis at different temperatures yield Pd17Se15 and Pd7Se4 phases that are very stable and adherent to the substrate. The organo-selenolate complexes are characterized using small angle XRD, 77Se NMR and thermogravimetric analysis (TGA). The palladium selenide films are characterized by various techniques such as XRD, XPS, TEM and SEM. Electrical conductivities of the films are determined using the four probe method. The strong adherence of the films to glass substrates coupled with high corrosion resistant behavior towards strong acid and alkaline environments render them to be very effective as electrocatalysts. The catalytic activity towards the I3-/I- redox couple, which is an important reaction in the regeneration of the dye in a dye-sensitized solar cell, is studied. Between the two phases, the Pd17Se15 film shows superior activity as the counter electrode for dye sensitized solar cells with a photocurrent conversion efficiency of 7.45%.
Chemoselective reduction of organoselenocyanates to diselenides and selenolates
Krief, Alain,Delmotte, Cathy,Dumont, Willy
, p. 12147 - 12158 (2007/10/03)
Selenocyanates produce selenolates or diselenides on reaction with metal hydrides (NaH, LiHBEt3, LiBH4, NaBH4). The former transformation is performed with 2 molar equivalents of sodium hydride or lithium triethyl borohydride or 1.25 molar equivalent of metal borohydrides. The second one is performed with lower amount of reducing agent (1 molar equivalent of sodium hydride or lithium triethyl borohydride or 0.25 equivalent of metal borohydrides). Intermediate formation of a selenol or a selenolate which reacts on the unreacted selenocyanate is suspected in the later transformation.
Selenocyanation using a combined reagent of triphenylphosphine and selenocyanogen. A new and simple synthesis of alkyl selenocyanates and symmetrical alkyl diselenides from alcohols
Tamura,Adachi,Kawasaki,Kita
, p. 2251 - 2252 (2007/10/12)
A novel reagent Ph3SeCN)2, easily prepared by adding an equimolar amount of tri-phenylphosphine to selenocyanogen solution in methylene chloride and tetrahydrofuran reacts below -60° with primary alcohols to produce directly the corr
