Results 231 to 240 of about 3,644,479 (283)

Review: Phase transition mechanism and supercritical hydrothermal synthesis of nano lithium iron phosphate

, 2020
Lithium iron phosphate (LiFePO4) is one of the most important cathode materials for high-performance lithium-ion batteries in the future, due to its incomparable cheapness, stability and cycle life.
Baoquan Zhang, Shuzhong Wang, Yanhui Li, Panpan Sun, Chuang Yang, Dong Wang, Liu Lu   +6 more
semanticscholar   +1 more source

Synthesis of biodiesel in supercritical alcohols and supercritical carbon dioxide

Fuel, 2010
Abstract Biodiesel was synthesized in supercritical fluids by two routes: non-catalytically in supercritical alcohols and by enzyme catalysis in supercritical carbon dioxide. Two oils, sesame oil and mustard oil, and two alcohols, methanol and ethanol, were used for the synthesis.
Varma, MN, Deshpande, PA, Madras, G
openaire   +2 more sources

Supercritical Phase Fischer-Tropsch Synthesis Reaction

Fuel, 1991
Summary Characteristic features of Fischer-Tropsch synthesis reaction which was operated in the supercritical n-hexane media were summarized in three points, (1) quick diffusion of reactants (2) effective removal of reaction heat and (3) effective wax extraction, α-olefins and water, which was the primary product and by-product of F-T synthesis ...
Kohshiroh Yokota, Yoshio Hanakata, Kaoru Fujimoto   +2 more
openaire   +2 more sources

Synthesis of Metal Nanostructures Using Supercritical Carbon Dioxide: A Green and Upscalable Process.

Small, 2020
Metallic nanostructures have numerous applications as industrial catalysts and sensing platforms. Supercritical carbon dioxide (scCO2 ) is a green medium for the scalable preparation of nanomaterials.
P. Siril, M. Türk
semanticscholar   +1 more source

Metal nanoparticle synthesis using supercritical alcohol

Materials Letters, 2009
Metal nanoparticles with uniform size distribution were synthesized in a low carbon number of supercritical alcohol without using reducing agents or surfactants. Nanoparticles of copper (Cu), nickel (Ni), and silver (Ag) were synthesized in supercritical methanol or supercritical ethanol at 300 bar, 400 °C and reaction time of 5 min.
Jaehoon Kim, Daewoo Kim, Bambang Veriansyah, Jeong Won Kang, Jae-Duck Kim   +4 more
openaire   +1 more source

Beyond Solution-Based Protocols: MOF Membrane Synthesis in Supercritical Environments for an Elegant Sustainability Performance Balance

ACS Materials Letters, 2020
Supercritical fluids (SCFs) represent materials at temperatures and pressures above their critical points where distinct liquid and gas phases do not exist.
Liangliang Liu, Yifan Song, Taotao Ji, Yanwei Sun, D. He, Haoquan Hu, Yi Liu   +6 more
semanticscholar   +1 more source

Synthesis of biodiesel in supercritical fluids

Fuel, 2004
Biodiesel, an alternative biodegradable diesel fuel, is derived from triglycerides by transesterification with alcohols. In this work, the transesterification of sunflower oil was investigated in supercritical methanol and supercritical ethanol at various temperatures $(200-400^o C)$ at 200 bar.
Madras, Giridhar, Kolluru, Chandana, Kumar, Rajnish   +2 more
openaire   +1 more source

Controlling metal oxide nanoparticle size and shape with supercritical fluid synthesis

Green Chemistry, 2019
Supercritical fluid nanoparticle synthesis (SCF nano synthesis) can robustly and readily control size and shape of metal oxide nanoparticles, while offering a potentially greener synthetic route through the employment of green solvents.
M. K. M. Lane, J. Zimmerman
semanticscholar   +1 more source

Supercritical combustion synthesis of titanium nitride

Symposium (International) on Combustion, 1996
To increase the interstitial mass loading of nitrogen for enhanced product yield in the self-propagating, high-temperature synthesis (SHS) of metallic nitrides, the synthesis was conducted in cryogenic nitrogen at supercritical states just above the critical point. This state regime has the unique characteristic that the density increases significantly
K. Brezinsky, J.A. Brehm, C.K. Law, I. Glassman   +3 more
openaire   +1 more source

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
openaire   +1 more source