Results 41 to 50 of about 60,233 (206)

A novel spiral infinity reactor for continuous hydrothermal synthesis of nanoparticles

Scientific Reports, 2022
Hydrothermal synthesis is an attractive route to make nanoparticles utilizing inexpensive precursors under moderate process conditions. Though it provides flexibility and robustness in controlling particle characteristics, process scale-up for continuous
Arjun Kumar Pukkella, Naga Ravikumar Varma Nadimpalli, Venkataramana Runkana, Sivakumar Subramanian   +3 more
doaj   +1 more source

Supercritical Water Gasification: Practical Design Strategies and Operational Challenges for Lab-Scale, Continuous Flow Reactors

, 2019
Optimizing an industrial-scale supercritical water gasification process requires detailed knowledge of chemical reaction pathways, rates, and product yields. Laboratory-scale reactors are employed to develop this knowledge base.
Gorman, David J., Kramlich, John C., Novosselov, Igor V., Pinkard, Brian R., Rasmussen, Elizabeth G., Reinhall, Per G., Tiwari, Kartik   +6 more
core   +1 more source

Glycerol as a cheap, safe and sustainable solvent for the catalytic and regioselective β,β-diarylation of acrylates over palladium nanoparticles [PDF]

, 2010
Herein we show that glycerol can be considered as a promising cheap and green solvent for the regioselective β,β-diarylation of alkenes. Whereas this reaction is generally catalyzed under an inert atmosphere by expensive phosphine or carbene-palladium ...
Barrault, Joel, Camy, Séverine, Condoret, Jean-Stéphane, Delample, Mathieu, Douliez, Jean-Paul, Jerôme, François, Pouilloux, Yannick, Villandier, Nicolas   +7 more
core   +2 more sources

Optimised production and extraction of astaxanthin from the yeast Xanthophyllomyces dendrorhous [PDF]

, 2020
Currently, astaxanthin demand is fulfilled by chemical synthesis using petroleum-based feedstocks. As such, alternative pathways of natural astaxanthin production attracts much research interest.
Charalampopoulos, Dimitris, Chatzifragkou, Afroditi, de Andrade Lima, Micael, Harith, Zuharlida Tuan   +3 more
core   +1 more source

Valence-tuned electron bridge enables high-yield multi-electron HMF oxidation over spinel catalysts

Nature Communications
The catalytic oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid is a key step in the production of bio-based plastics but remains limited by sluggish multi-electron transfer kinetics across multiple reaction intermediates. In this study,
Zhong-Ting Hu, Gan He, Xiaohuan Tao, Jinshu Tian, Mingwu Tan, Ni Ouyang, Jun-Long Li, Mian Hu, Jie-Xin Wang, Yihan Zhu, Dapeng Cao, Zhiyan Pan, Yong Wang, Xiaonian Li   +13 more
doaj   +1 more source

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
doaj   +1 more source

Design of a silica-aerogel-based cosmic dust collector for the Tanpopo mission aboard the International Space Station

, 2014
We are developing a silica-aerogel-based cosmic dust collector for use in the Tanpopo experiment to be conducted on the International Space Station. The mass production of simple two-layer hydrophobic aerogels was undertaken in a contamination-controlled
Hashimoto, Hirofumi, Imai, Eiichi, Kawaguchi, Yuko, Kawai, Hideyuki, Kobayashi, Kensei, Mita, Hajime, Okudaira, Kyoko, Sasaki, Satoshi, Tabata, Makoto, Yabuta, Hikaru, Yamagishi, Akihiko, Yano, Hajime, Yokobori, Shin-ichi   +12 more
core   +1 more source

Spin-Exchange Term in the Solvent Equation of State Near the Critical Point for Electron Transfer Reactions [PDF]

, 2000
Phenomenological Equations of State (EOS) for fluids near their critical point have been obtained using literature compression factor data, Zc = Pc Vc/(n R Tc) = 0.40 to 0.10 in Table I (Pc, Vc/n, Tc are the pressure, volume per n mole, and the absolute ...
Acrivos, Juana Vivó
core   +2 more sources

Synthesis of Biodiesel in Microstructured Reactors under Supercritical Reaction Conditions

Chemical Engineering Transactions, 2014
At IMM the advantages of an alternative synthesis route for biodiesel under supercritical conditions in micro-structured reactors applying heterogeneous catalysts are currently under investigation. Target of the development work is to build a pilot plant
J. Schuerer, R. Thiele, O. Wiborg, A. Ziogas, G. Kolb   +4 more
doaj   +1 more source

Highly Effective Schungite-Based Catalyst for Deoxygenation of Biomass Components

Chemical Engineering Transactions, 2021
Nowadays, the processes for the conversion of biomass to fuels are of great interest. One of the widely studied reactions is the deoxygenation of oxygen-containing compounds.
Antonina A. Stepacheva, Mariia E. Markova, Elena O. Schipanskaya, Valentina G. Matveeva, Mikhail G. Sulman   +4 more
doaj   +1 more source