12164-38-4

Usage

InChI:InChI=1/2Nb.3S/q2*+3;3*-2

Upstream product

• 75-15-0 carbon disulfide 

Related news

EXAFS identification of the active species in supported NIOBIUM SULFIDE (cas 12164-38-4) hydrotreatment catalysts08/06/2019

We present a Nb K-edge EXAFS study of carbon- and alumina-supported niobium sulfide hydrotreatment catalysts. NbS2 and NbS3 entities have been evidenced on the carbon support, and NbS2 and Nb1−yS ones on the alumina support. EXAFS spectra of carbon-supported species, which are highly disordered,...detailed

A new approach for the synthesis of layered NIOBIUM SULFIDE (cas 12164-38-4) and restacking route of NbS2 nanosheet08/05/2019

We have developed a new process for the synthesis of a layered niobium sulfide that involves heating K4Nb6O17·3H2O with a H2S/N2 gas mixture. It was confirmed that heating the starting layered oxide at 750 °C for 10 h under the gas flow yielded a highly crystalline, single-phase K0.34(H2O)0.7N...detailed

Catalytic properties of pure and Ni doped NIOBIUM SULFIDE (cas 12164-38-4) catalysts for hydrodesulfurization08/04/2019

New unsupported and carbon-supported niobium sulfide (pure or Ni doped) catalysts, characterized by EXAFS, demonstrate interesting properties for hydrodesulfurization.detailed

NIOBIUM SULFIDE (cas 12164-38-4) as a dopant for hydrotreating NiMo catalysts08/01/2019

Niobium sulfide has been recently found to be an interesting new active phase for hydrodesulfurization. In this work, niobium was used as a dopant for a conventional hydrotreating catalyst. A NiMo hydrotreating catalyst in the oxide form was doped with various contents of Nb precursor salt (0detailed

Relevant academic research and scientific papers

First laboratory observation of niobium monosulphide in the gas phase

The diatomic molecule NbS has been observed for the first time by laser-induced fluorescence at low resolution in a supersonic molecular beam following expansion of a CS2/He (1:100) mixture through a laser-produced plasma of niobium atoms.Two band systems have been observed in the visible (400-700 nm); a strong one and a weaker one.The strong one has its origin near 15 670 cm-1 and is shown to belong to the C4Σ--X4Σ- system.The weaker one has its origin likely at 15 215 cm-1 and is attributed to the 2Σ+-X4Σ1/2- system.The latter system is ob served owing to the 2Σ+ (?1δ2) ca.C4Σ1/2- (δ2?*1) perturbation induced by the spin-orbit operators.This perturbation has been characterized through vibrational energy shifts, vibronic lifetimes, and analysis of the perturbation matrix elements.This enables direct determination of the large second-order spin-orbit splittings in the C4Σ- and X4Σ- states.In the ground state, the splitting which is due to the isoconfigurational 2Σ+HSOX4Σ-> interaction element has been established to be 63 cm-1 and is independent of the vibrational energy content.In the C state, the spin-orbit splitting arises from two interactions; one due to the isoconfigurational 2Σ+HSOC4Σ-> interaction and the other to the 2Σ- (?1δ2), (v + 1)HSOC4Σ- (δ2?*1),v> interaction.The former interaction splits the C4Σ3/2- and C4Σ1/2- components by about 63 cm-1, as in the ground X4Σ- state again independent of the vibrational energy content.The second interaction which becomes negligible at v(C4Σ-)4 shifts the C4Σ- (v = 0,1,2,3) levels to lower wa ve numbers by 18, 15, 11, and 5 cm-1, respectively.From a Franck-Condon analysis, the electronic part of the molecular matrix elements 2Σ+ (?1δ2),v'HSOC4Σ- (δ2?1*),v''> is estimated to be 57 cm-1.Other molecular parameters such as vibrational frequencies and anharmonicities, radiative lifetimes, Franck-Condon factors, mixing coefficients, and approximate bond lengths are reported and discussed.