Results 301 to 310 of about 17,344 (346)

Supercritical Fluids for Organic Synthesis

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Ryoji Noyori, Takao Ikariya
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Green organic synthesis in supercritical water [PDF]

, 2020
Water under supercritical conditions displays unique characteristics because of which it has emerged as an interesting solvent in recent years. It is abundantly available in nature and does not affect the environment, making it a green solvent.
Gaffer Ahmed, Sneha Acharya, Kushagra Agrawal, Nanda Kishore   +3 more
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Supercritical Hydrothermal Reactions for Material Synthesis

Bulletin of the Chemical Society of Japan, 2023
Abstract Since the early 1990s, Adschiri and his colleagues have performed research on the use of supercritical water in diverse applications, including heavy oil reforming, waste polymer decomposition and chemical raw materials recovery, cellulose hydrolysis and sugar recovery, lignin decomposition and chemical raw materials recovery ...
Tadafumi Adschiri, Seiichi Takami, Mitsuo Umetsu, Satoshi Ohara, Takashi Naka, Kimitaka Minami, Daisuke Hojo, Takanari Togashi, Toshihiko Arita, Minori Taguchi, Masahiro Itoh, Nobuaki Aoki, Gimyeong Seong, Takaaki Tomai, Akira Yoko   +14 more
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Supercritical Hydrothermal Synthesis of Nanoparticles

The Proceedings of the Thermal Engineering Conference, 2004
Abstract In this chapter, nanoparticle synthesis using supercritical water is introduced. The characteristic phase behavior of supercritical water enables organic ligand modification, and fine tuning of particle size and morphology can be realized by the method. Synthesis of metal nanoparticles is possible in homogeneous reductive atmosphere provided
Tadafumi Adschiri, Seiichi Takami, Mitsuo Umetsu, Satoshi Ohara, Takao Tsukada   +4 more
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Supercritical Fluid Synthesis of Metal and Semiconductor Nanomaterials

Chemistry – A European Journal, 2003
AbstractIn the near future physical and economic constraints are expected to limit the continued miniaturisation of electronic and optical devices using current “top‐down” lithography‐based methods. Consequently, nonlithographic methods for synthesising and organising materials on the nanometre scale are required.
Holmes, Justin D., Lyons, Daniel Mark, Ziegler, Kirk J.   +2 more
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Ceria–zirconia mixed oxide prepared by continuous hydrothermal synthesis in supercritical water as catalyst support [PDF]

Catalysis Today, 2012
A number of different synthetic methods have been applied to prepare ceria-zirconia and related mixed oxides. Continuous hydrothermal synthesis in supercritical water (supercritical synthesis) is a method to prepare metal oxide nanoparticles rapidly and ...
Son-Ki Ihm, Jeong-Rang Kim
exaly   +2 more sources

Synthesis of Phenylferrocene in Supercritical Carbon Dioxide

Advanced Materials Research, 2012
The environmentally benign Suzuki cross-coupling reaction was developed by using ScCO2(Supercritical CO2) instead of traditionally organic solvent. In the paper the compound phenylferrocene was synthesized by the Suzuki cross-coupling reaction of iodoferrocene and phenylboronic acids in ScCO2/PEG (polyethylene glycol) with excellent yield ratio in the ...
Fawang Li, Quan Ling Suo, Hai Long Hong, Li Min Han   +3 more
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Fluoropolymer synthesis in supercritical carbon dioxide

The Journal of Supercritical Fluids, 2009
Abstract Herein we review the environmentally friendly synthesis of fluorinated polymers in supercritical carbon dioxide (scCO2). Historically, many high-performance fluorinated materials are commercially synthesized in aqueous media using fluorinated surfactants or in non-aqueous conditions using fluorinated solvents.
Libin Du, Jennifer Y. Kelly, George W. Roberts, Joseph M. DeSimone   +3 more
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Supercritical Hydrothermal Synthesis of Inorganic Nanomaterials

2019
Nanomaterials are always at the leading emerging area of material and nanotechnology. Especially in this age, the ever-increasing population in the world makes energy, chemicals and other resource efficiency particularly important in sustaining concept [1].
Shuzhong Wang, Donghai Xu, Yang Guo, Xingying Tang, Yuzhen Wang, Jie Zhang, Honghe Ma, Lili Qian, Yanhui Li   +8 more
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Synthesis of cobalt nanoparticles in supercritical methanol

Materials Chemistry and Physics, 2010
Abstract Cobalt nanoparticles with a face-centered cubic (fcc) structure were synthesized by the reduction of Co(NO 3 ) 2 in supercritical methanol. The reduction of Co(NO 3 ) 2 to fcc Co was completed within 15 min at 400 °C and 300 bar. The reduction mechanism was investigated by varying the reaction temperature (200–400 °C) and the reaction time
Nae Chul Shin, Young-Ho Lee, Young Ho Shin, Jaehoon Kim, Youn-Woo Lee   +4 more
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