Characterization by FTIR of Oxidized Pyrargyrite with Sodium Sulfide

2020 ◽  
pp. 445-450
Author(s):  
Yessica Paulina Gómez Espinoza ◽  
M. Reyes Pérez ◽  
Elia Guadalupe Palacios Beas ◽  
J. C. Juárez Tapia ◽  
M. Pérez-Labra ◽  
...  
Keyword(s):  
Sodium Sulfide

Silicon Assisted Sulfuration: Tetrachlorosilane-Sodium Sulfide-A New Potent Thionating Reagent for Carbonyl Compounds

2007 ◽  
Author(s):  
T. A. Salama ◽  
S. S. Elmorsy ◽  
A. M. Khalil ◽  
M. A. Ismail ◽  
A. S. El-Ahl
Keyword(s):  
Carbonyl Compounds ◽  
Sodium Sulfide

Synthesis of hierarchical MoSe2 nanolayers on sodium sulfide crystals for electrocatalytic hydrogen evolution

CrystEngComm ◽  
2021 ◽  
Author(s):  
Xiaoshuang Chen ◽  
Meina Ju ◽  
Kun Song ◽  
Guoli Chen ◽  
Rui Yang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
High Performance ◽  
Sodium Sulfide ◽  
Hydrogen Generation ◽  
Clean Energy

Hydrogen generation via water electroreduction is a pivotal portion of exploiting clean-energy skills. Nevertheless, developing a low price and high-performance catalytic activity substance to take the place of expensively precious...

ChemInform Abstract: DIVINYL SULFIDE. II. STUDY OF THE REACTION OF ACETYLENE WITH HYDRATED SODIUM SULFIDE UNDER PRESSURE

1978 ◽  
Vol 9 (19) ◽  
Author(s):  
S. V. AMOSOVA ◽  
B. A. TROFIMOV ◽  
V. V. KRYUCHKOV ◽  
V. I. PARYGINA
Keyword(s):  
Sodium Sulfide ◽  
Divinyl Sulfide

scholarly journals Chromium adsorption on sodium sulfide treated sheep wool

2021 ◽  
Vol 1763 (1) ◽  
pp. 012009
Author(s):  
S Enkhzaya ◽  
H Matsune ◽  
K Shiomori ◽  
B Oyuntsetseg
Keyword(s):  
Sodium Sulfide ◽  
Chromium Adsorption ◽  
Sheep Wool

Anhydride und Thioanhydride von tert-Butylstibinig-und -stibonigsäuren / Anhydrides and Thioanhydrides of tert-Butylstibinous-and Stibonous Acids

1981 ◽  
Vol 36 (9) ◽  
pp. 1105-1109 ◽  
Author(s):  
Hans Joachim Breunig ◽  
Helmut Kischkel
Keyword(s):  
Sodium Hydroxide ◽  
Sodium Sulfide ◽  
H Nmr

Abstract The reactions of di-tert-butylantimony chloride with sodium hydroxide or sodium sulfide yield new anhydrides or thioanhydrides of tert-butylstibinous acids, which have structures with bridging oxygen or sulfur atoms. Analogous reactions of tert-butylantimonydichloride produce the first examples of anhydrides or thioanhydrides of tertbutylstibonous acids, which have cyclic structures (t-BuSbE)n E = O, n = 3, 4; E = S, n = 2, 3, 4, 5. Structural evidence is based on IR, 1H NMR and MS data.

Fermi‐level movement at GaAs(001) surfaces passivated with sodium sulfide solutions

1991 ◽  
Vol 70 (7) ◽  
pp. 3707-3711 ◽  
Author(s):  
V. L. Berkovits ◽  
V. N. Bessolov ◽  
T. N. L’vova ◽  
E. B. Novikov ◽  
V. I. Safarov ◽  
...  
Keyword(s):  
Fermi Level ◽  
Sodium Sulfide

Composition, particle size, and near-infrared irradiation effects on optical properties of Au–Au2S nanoparticles

2008 ◽  
Vol 23 (1) ◽  
pp. 281-293 ◽  
Author(s):  
Mei Chee Tan ◽  
Jackie Y. Ying ◽  
Gan Moog Chow
Keyword(s):  
Particle Size ◽  
Optical Properties ◽  
Thermal Effects ◽  
Near Infrared ◽  
Sodium Sulfide ◽  
Irradiation Effects ◽  
Absorption Bands ◽  
Molar Ratios ◽  
Nir Absorption ◽  
Structure And Microstructure

Near-infrared (NIR)-absorbing nanoparticles synthesized by the reduction of tetrachloroauric acid (HAuCl4) using sodium sulfide (Na2S) exhibited absorption bands at ∼530 nm and at the NIR region of 650−1100 nm. A detailed study on the structure and microstructure of as-synthesized nanoparticles was reported previously. The as-synthesized nanoparticles were found to consist of amorphous AuxS (x = ∼2), mostly well mixed within crystalline Au. In this work, the optical properties were tailored by varying the precursor molar ratios of HAuCl4 and Na2S. In addition, a detailed study of composition and particle-size effects on the optical properties was discussed. The change of polarizability by the introduction of S in the form of AuxS (x = ∼2) had a significant effect on NIR absorption. Also, it was found in this work that exposure of these particles to NIR irradiation using a Nd:YAG laser resulted in loss of the NIR absorption band. Thermal effects generated during NIR irradiation had led to microstructural changes that modified the optical properties of particles.

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