Results 1 to 10 of about 3,644,479 (283)

Supercritical Synthesis of Biodiesel [PDF]

Molecules, 2012
The synthesis of biodiesel fuel from lipids (vegetable oils and animal fats) has gained in importance as a possible source of renewable non-fossil energy in an attempt to reduce our dependence on petroleum-based fuels.
Michel Vaultier, Mathieu Pucheault, Gregorio López-López, M. Isabel Burguete, Gregorio Sánchez-Gómez, Eduardo García-Verdugo, Pedro Lozano, Juana M. Bernal, Santiago V. Luis   +8 more
doaj   +7 more sources

A Bibliometric Analysis and Review of Supercritical Fluids for the Synthesis of Nanomaterials

Nanomaterials, 2021
Since the 1990s, supercritical fluids for the synthesis of nanomaterials have been paid more and more attention by researchers and have gradually become one of the most important ways to prepare nanomaterials.
Wei Su, Hongshuo Zhang, Yi Xing, Xinyan Li, Jiaqing Wang, Changqing Cai   +5 more
doaj   +2 more sources

Oxidation of metallic Cu by supercritical CO2 and control synthesis of amorphous nano-metal catalysts for CO2 electroreduction

Nature Communications, 2023
Amorphous metal catalysts often exhibit appealing catalytic properties, however, accurate control synthesis of amorphous nano-metal catalysts is a challenge.
Chunjun Chen, Xupeng Yan, Yahui Wu, Xiudong Zhang, Shoujie Liu, Fanyu Zhang, Xiaofu Sun, Qinggong Zhu, Lirong Zheng, Jing Zhang, Xueqing Xing, Zhonghua Wu, Buxing Han   +12 more
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Supercritical CO2-assisted rapid synthesis of covalent organic framework-based electrocatalyst for efficient two-electron oxygen reduction reaction [PDF]

Nature Communications
Covalent organic frameworks (COFs) hold significant promise as electrocatalysts, but their synthesis is typically constrained by prolonged reaction times (>72 h), high temperatures ( >120 °C), and the use of organic solvents.
Junqi Song, Zhiqiang Zhang, Weiping Li, Chunli Liu, Guodong Feng, Yaqiong Su, Kai Xi, Hong Yi, Changhai Yi, Lan Peng   +9 more
doaj   +2 more sources

Synthesis of Micro- and Nanoparticles in Sub- and Supercritical Water: From the Laboratory to Larger Scales

Applied Sciences, 2020
The use of micro- and nanoparticles is gaining more and more importance because of their wide range of uses and benefits based on their unique mechanical, physical, electrical, optical, electronic, and magnetic properties.
F. Ruiz-Jorge, J. R. Portela, J. Sánchez-Oneto, E. J. Martínez de la Ossa   +3 more
doaj   +2 more sources

Catalytic biodiesel synthesis under supercritical conditions [PDF]

Mendeleev Communications, 2021
The constant increase in greenhouse gases in the environment is forcing people to look for different ways to reduce such pollution. One of these ways is the use of biodiesel for road transport. Conventional biodiesel production involves the catalytic triglyceride transesterification process.
Violeta Makareviciene, Egle Sendzikiene
openaire   +1 more source

Supercritical Hydrothermal Synthesis of Nano-Zirconia: Reaction Path and Crystallization Mechanisms of Different Precursors [PDF]

E3S Web of Conferences, 2023
Nano-zirconia exhibits excellent mechanical properties (fracture toughness, hardness and flexural strength), thermal performance (thermal conductivity), optical properties and biological properties for various ceramic-based applications.
Liu Lu, Zhao Jun-an, Wang Shuzhong, Zhang Baoquan, Yang Jianqiao, Liu Hui   +5 more
doaj   +1 more source

Kinetic Regularities of Methane Dry Reforming Reaction on Nickel-Containing Modified Ceria–Zirconia

Energies, 2021
The Ni-containing catalysts based on ceria–zirconia doped with Ti and Ti+Nb were prepared by the solvothermal method in supercritical fluids. Ni deposition was carried out by incipient wetness impregnation and the one-pot technique.
Valeria Fedorova, Mikhail Simonov, Konstantin Valeev, Yuliya Bespalko, Ekaterina Smal, Nikita Eremeev, Ekaterina Sadovskaya, Tamara Krieger, Arcady Ishchenko, Vladislav Sadykov   +9 more
doaj   +1 more source

Methane Dry Reforming Catalysts Based on Pr-Doped Ceria–Zirconia Synthesized in Supercritical Propanol

Energies, 2023
This paper is devoted to the study of active and stable nickel catalysts for methane dry reforming based on Pr-doped ceria–zirconia obtained via the solvothermal continuous method.
Marina Arapova, Ekaterina Smal, Yuliya Bespalko, Konstantin Valeev, Valeria Fedorova, Amir Hassan, Olga Bulavchenko, Vladislav Sadykov, Mikhail Simonov   +8 more
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Carbon Formation during Methane Dry Reforming over Ni-Containing Ceria-Zirconia Catalysts

Nanomaterials, 2022
Two series of Ni/Ce(Ti/Nb)ZrO2 catalysts were prepared using citrate route and original solvothermal continuous flow synthesis in supercritical isopropanol and studied in dry reforming of methane (DRM). TEM, XPS and FTIRS of adsorbed CO confirm influence
Ekaterina Smal, Yulia Bespalko, Marina Arapova, Valeria Fedorova, Konstantin Valeev, Nikita Eremeev, Ekaterina Sadovskaya, Tamara Krieger, Tatiana Glazneva, Vladislav Sadykov, Mikhail Simonov   +10 more
doaj   +1 more source