Organometallic sol/gel chemistry of metal sulfides

Guiton, Theresa A.; Czekaj, Corinna L.; Pantano, Carlo G.

doi:10.1016/0022-3093(90)90095-4

Cited by 23 publications

(5 citation statements)

References 8 publications

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“…Results from Bocarsly et al 49 based on cyanogels derived from K 3 Fe(CN) 6 or K 2 PdCl 4 in aqueous solutions show that the non-oxidic sol-gel chemistry is not limited to main group element systems. Guiton et al 50 reviews the organo metal chemistry with the sol-gel processing of metal sulfides using an Et 2 Zn precursor. Gacoin et al 51 recently found a sol-gel transition for CdS colloids.…”

Section: [(Chmentioning

confidence: 99%

Inorganic Solid-State Chemistry with Main Group Element Carbodiimides

et al. 1998

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Organosilicon carbodiimides have been successfully applied as single-source precursor compounds for the synthesis of novel ternary Si-, C-, and N-containing solid phases. Their thermally induced decomposition gives either amorphous silicon carbonitrides or polycrystalline silicon nitride and silicon carbide mixtures, materials that are presently of technological interest for their exceptional hardness, strength, toughness, and high temperature resistance even in corrosive environments. This review is concerned with the synthesis, characterization, and thermal stability of element carbodiimides. The main part of this paper is focused on polymeric silicon-based carbodiimides obtained by the reaction of chloro(organo)silanes with bis(trimethylsilyl)carbodiimide. In the case of RSiCl 3 , novel poly(silylcarbodiimide) gels are formed. Starting from silicon tetrachloride, new crystalline SiCN phases (namely, SiC 2 N 4 and Si 2 CN 4 ), have been isolated. Their crystal structures as well as their thermal behavior in the range between room temperature and 1600 °C are discussed. Moreover, preliminary results on the synthesis of germanium-and boron-containing carbodiimides are reported. It is also shown that carbon-based carbodiimides can be obtained by the reaction of cyanuric halides with bis(trimethylsilyl)carbodiimide. These materials are investigated as precursors for the synthesis of new carbon nitrides with high hardness.

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Section: [(Chmentioning

confidence: 99%

Inorganic Solid-State Chemistry with Main Group Element Carbodiimides

et al. 1998

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“…nanoparticles exhibit wider energy gap and quantum size confinement. Recently, ZnS nanoparticles have been synthesized by various methods, including solid-state reaction, sol-gel process and hydrothermal method, but some of them require longer processing time or higher temperature [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Microwave-assisted synthesis and luminescent properties of pure and doped ZnS nanoparticles

Yang

Huang

et al. 2005

Journal of Alloys and Compounds

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“…Since Bhargava et.al reported the novel properties in nanosized ZnS doped with Mn +2 ions [9], many studies have been published on Ti, V, Cr, Mn, Fe, Co, Ni, Cu and rare earth metal ions activated II-VI, III-V and I-III-VI nanometer scale semiconductor materials [10,17]. Commonly used techniques for the synthesis of II-VI semiconductor Q-dots includes solid-state reaction, sol-gel, microwave electromagnetic radiation, hydrothermal [18][19][20][21]. During the wet chemical synthesis of nanoparticles, organic stabilizers are usually used to prevent them from aggregating by capping their surfaces.…”

Section: Introductionmentioning

confidence: 99%

Tuning luminescence of 3d transition- metal doped quantum particles: Ni+2: CdS and Fe+3: CdS

Taheri¹,

Yousefi²,

Khosravi³

2010

Braz. J. Phys.

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The room-temperature photoluminescence of Cd 1−x M x S (M=Ni, Fe) nanoparticles were investigated. Compared with the photoluminescence of CdS which peaks at 475 nm, the photoemission of CdS:Fe nanoparticles was peaking at 537 nm because of Fe acting as luminescent centers. On the other hand, the green emission (503 nm) of CdS:Ni attributed to the 1 T 2g (D)→ 3 A 2g (F) raditive transition. With the increase of the Ni +2 concentration, photoluminescence intensity is increased while by Fe replacement with Cd ions, PL intensity is decreased. Relative to bulk crystals, due to the quantum confinement effect the band gap of CdS clusters is significantly blue-shifted with decreasing cluster size. CdS nanoclusters present a mixed hexagonal/cubic structure and with increasing doping concentration the peaks position of doped CdS shifts to higher angle.

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Organometallic sol/gel chemistry of metal sulfides

Cited by 23 publications

References 8 publications

Inorganic Solid-State Chemistry with Main Group Element Carbodiimides

Inorganic Solid-State Chemistry with Main Group Element Carbodiimides

Microwave-assisted synthesis and luminescent properties of pure and doped ZnS nanoparticles

Tuning luminescence of 3d transition- metal doped quantum particles: Ni+2: CdS and Fe+3: CdS

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