Silica dissolution as a route to octaanionic silsesquioxanes

Kang, Kefei; Laine, Richard M.

doi:10.1002/aoc.1071

Cited by 3 publications

(2 citation statements)

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“…This reaction has the potential to provide a cheap and readily accessible route to T 8 POSS derivatives, because huge quantities of rice hull ash are produced by the burning of rice hulls for power generation, and this material currently has limited utility. In a similar manner, the use of industrially produced silica as a silicon source for the synthesis of POSS species has also been investigated as a cost-effective route to certain POSS species …”

Section: Synthesis Of Poss Compoundsmentioning

confidence: 99%

Recent Developments in the Chemistry of Cubic Polyhedral Oligosilsesquioxanes

2010

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Section: Synthesis Of Poss Compoundsmentioning

confidence: 99%

Recent Developments in the Chemistry of Cubic Polyhedral Oligosilsesquioxanes

2010

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“…Typically, the preparation of TROS using aliphatic alcohol C n H 2n+1 OH (n = 1-4) produced a high yield. Even though, other types of alcohol can be designed to synthesize cyclic TROS for certain purposes [36][37][38][39][40][41][42][43][44]. Surprisingly, the use of RHA as natural SiO 2 source produced a higher yield of TMOS (68%) than CARiACT Q-10 (48%).…”

Section: ■ Direct Synthesis Route (Transformation Of Sio 2 To Tros)mentioning

confidence: 99%

The Potential Perspective of Processing Rice Husk as SiO<sub>2</sub> Source to Tetraalkoxysilane in Indonesia

Wahyudianto,

Putro,

Nguyen

et al. 2024

Indones. J. Chem.

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Tetra-alkoxysilane (TROS) is one of the useful chemicals and it can be processed to produce semiconductor and photovoltaic devices. Now, the transformation of silica (SiO2) to TROS is garnering interest due to the potential of extracting it from biomass. As the 14th largest country, Indonesia possesses an abundant source of SiO2 from mining activities and agricultural waste, notably rice husk (RH). However, only a little concrete action is planned for leveraging RH into a more valuable industrial substance. This review will explain two routes for TROS—conventional and direct—comparing their respective benefits and drawbacks. Additionally, it presents a simulation of various scenarios for scaling TROS production to an industrial level, considering technoeconomic and environmental assessment aspects. The focus then shifts to Indonesia’s strategic trajectory for 2045, offering recommendations to enhance resource utilization for economic and national development.

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From SiO₂ to Alkoxysilanes for the Synthesis of Useful Chemicals

et al. 2021

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The transformation of silica (SiO 2 ) to useful chemicals is difficult to explore because of the strength of the Si–O bond and thermodynamic stability of the SiO 2 structure. The direct formation of alkoxysilanes from SiO 2 has been explored as an alternative to the carbothermal reduction (1900 °C) of SiO 2 to metallic silicon (Si met ) followed by treatment with alcohols. The base-catalyzed depolymerization of SiO 2 with diols and monoalcohols afforded cyclic silicon alkoxides and tetraalkoxysilanes, respectively. SiO 2 can also be converted to alkoxysilanes in the presence of organic carbonates, such as dimethyl carbonate. Alkoxysilanes can be further converted to useful chemicals, such as carbamates, organic carbonates, and chlorosilanes. An interesting and highly efficient pathway to the direct conversion of SiO 2 to alkoxysilanes has been discussed in detail along with the corresponding economic and environmental implications. The thermodynamic and kinetic aspects of SiO 2 transformations in the presence of alcohols are also discussed.

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Silica dissolution as a route to octaanionic silsesquioxanes

Cited by 3 publications

References 23 publications

Recent Developments in the Chemistry of Cubic Polyhedral Oligosilsesquioxanes

Recent Developments in the Chemistry of Cubic Polyhedral Oligosilsesquioxanes

The Potential Perspective of Processing Rice Husk as SiO<sub>2</sub> Source to Tetraalkoxysilane in Indonesia

From SiO₂ to Alkoxysilanes for the Synthesis of Useful Chemicals

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Silica dissolution as a route to octaanionic silsesquioxanes

Cited by 3 publications

References 23 publications

Recent Developments in the Chemistry of Cubic Polyhedral Oligosilsesquioxanes

Recent Developments in the Chemistry of Cubic Polyhedral Oligosilsesquioxanes

The Potential Perspective of Processing Rice Husk as SiO<sub>2</sub> Source to Tetraalkoxysilane in Indonesia

From SiO2 to Alkoxysilanes for the Synthesis of Useful Chemicals

Contact Info

Product

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From SiO₂ to Alkoxysilanes for the Synthesis of Useful Chemicals