Very high solubilities of hydrogenated n-alkyl CO2-philes in supercritical carbon dioxide at moderately low temperature and pressuresElectronic supplementary information (ESI) available: colour version of Fig. 1. See http://www.rsc.org/suppdata/nj/b3/b317037c/

2004 ◽  
Vol 28 (6) ◽  
pp. 666 ◽  
Author(s):  
Zameer Shervani ◽  
Juncheng Liu ◽  
Yutaka Ikushima
Keyword(s):  
Carbon Dioxide ◽  
Low Temperature ◽  
Supercritical Carbon Dioxide ◽  
Supplementary Information ◽  
Very High ◽  
Colour Version ◽  
Supercritical Carbon

scholarly journals Low-temperature and purification-free stereocontrolled ring-opening polymerisation of lactide in supercritical carbon dioxide

2020 ◽  
Vol 22 (7) ◽  
pp. 2197-2202 ◽  
Author(s):  
Simon P. Bassett ◽  
Andrew D. Russell ◽  
Paul McKeown ◽  
Isabel Robinson ◽  
Thomas R. Forder ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Low Temperature ◽  
Supercritical Carbon Dioxide ◽  
Ring Opening ◽  
Solvent Free ◽  
Free Ring ◽  
First Time ◽  
Supercritical Carbon

A stereoselective, solvent-free ring-opening polymerisation (ROP) of lactide (LA) in supercritical carbon dioxide (scCO2) is reported for the first time.

Investigation of poly(l-lactic acid)/graphene oxide composites crystallization and nanopore foaming behaviors via supercritical carbon dioxide low temperature foaming

2016 ◽  
Vol 31 (3) ◽  
pp. 348-359 ◽  
Author(s):  
Li-Hong Geng ◽  
Xiang-Fang Peng ◽  
Xin Jing ◽  
Leng-Wan Li ◽  
An Huang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Graphene Oxide ◽  
Lactic Acid ◽  
Low Temperature ◽  
Supercritical Carbon Dioxide ◽  
Image Position ◽  
Oxide Composites ◽  
Supercritical Carbon

Abstract

Low temperature formation of CH3NH3PbI3 perovskite films in supercritical carbon dioxide

2019 ◽  
Vol 154 ◽  
pp. 104604 ◽  
Author(s):  
Gilbert Annohene ◽  
Gary C. Tepper
Keyword(s):  
Carbon Dioxide ◽  
Low Temperature ◽  
Supercritical Carbon Dioxide ◽  
Supercritical Carbon

Mechanical Design and Validation Testing for a High-Performance Supercritical Carbon Dioxide Heat Exchanger

2017 ◽  
Author(s):  
Shaun D. Sullivan ◽  
Jason Farias ◽  
James Kesseli ◽  
James Nash
Keyword(s):  
Carbon Dioxide ◽  
Heat Exchanger ◽  
Supercritical Carbon Dioxide ◽  
Heat Exchangers ◽  
High Performance ◽  
Mechanical Design ◽  
Great Promise ◽  
Heat Rejection ◽  
Very High ◽  
Supercritical Carbon

Supercritical carbon dioxide (sCO2) Brayton cycles hold great promise as they can achieve high efficiencies — in excess of 50% — even at relatively moderate temperatures of 700–800 K. However, this high performance is contingent upon high-effectiveness recuperating and heat rejection heat exchangers within the cycle. A great deal of work has gone into development of these heat exchangers as they must operate not only at elevated temperatures and very high pressures (20–30 MPa), but they must also be compact, low-cost, and long-life components in order to fully leverage the benefits of the sCO2 power cycle. This paper discusses the mechanical design and qualification for a novel plate-fin compact heat exchanger designed for sCO2 cycle recuperators and waste heat rejection heat exchangers, as well as direct sCO2 solar absorber applications. The architecture may furthermore be extended to other very high pressure heat exchanger applications such as pipeline natural gas and transcritical cooling cycles. The basic heat exchanger construction is described, with attention given to those details which have a direct impact on the durability of the unit. Modeling and analysis of various mechanical failure modes — including burst strength, creep, and fatigue — are discussed. The design and construction of test sections, test rigs, and testing procedures are described, along with the test results that demonstrate that the tested design has an operating life well in excess of the 100,000 cycles/90,000 hour targets. Finally, the application of these findings to a set of design tools for future units is demonstrated.

IMPROVEMENT ON CHARACTERISTICS OF FERROELECTRIC THIN FILMS USING SUPERCRITICAL CARBON DIOXIDE FLUID TREATMENT

2012 ◽  
Vol 06 ◽  
pp. 104-108
Author(s):  
CHIEN-MIN CHENG ◽  
MING-CHANG KUAN ◽  
KAI-HUNAG CHEN ◽  
JEN-HWAN TSAI
Keyword(s):  
Thin Films ◽  
Carbon Dioxide ◽  
Electrical Properties ◽  
Low Temperature ◽  
Supercritical Carbon Dioxide ◽  
Oxygen Vacancy ◽  
Current Density ◽  
Pure Water ◽  
Ferroelectric Thin Films ◽  
Supercritical Carbon

Electrical and physical properties of as-deposited Bi 3.9 La 0.1 Ti 2.9 V 0.1 O 12 (BLTV) ferroelectric thin films on SiO 2/ Si (100) substrates were improved by low temperature supercritical carbon dioxide fluid (SCF) process treatment. The as-deposited BLTV ferroelectric thin films were treated by SCF process which mixed with propyl alcohol and pure water. The memory windows increased in C-V curves, and the oxygen vacancy and defect in leakage current density curves were obtained after SCF process treatment. Finally, the improvement properties of as-deposited BLTV thin films after SCF process treatment were investigated by XPS, C-V, and J-E measurement. The mechanism concerning the dependence of electrical properties of the ferroelectric thin films on the SCF process was investigated and discussed.

scholarly journals Water in supercritical carbon dioxide dyeing

2015 ◽  
Vol 19 (4) ◽  
pp. 1301-1304 ◽  
Author(s):  
Lai-Jiu Zheng ◽  
Jing-Lu Guo ◽  
Yong-Fang Qian ◽  
Bing Du ◽  
Wei Ju ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Low Temperature ◽  
Supercritical Carbon Dioxide ◽  
Color Difference ◽  
Low Pressure ◽  
Water Interaction ◽  
Effect Of Water ◽  
Dyeing Process ◽  
Wool Fabrics ◽  
Supercritical Carbon

This paper investigates the effect of water serving as entrainer on the dyeing of wool fabrics in supercritical carbon dioxide. Compared with previous supercritical dyeing methods, addition of water makes the dyeing process more effective under low temperature and low pressure. During dyeing process, dyestuff can be uniformly distributed on fabrics?s surface due to water interaction, as a result coloration is enhanced while color difference is decreased.

Low temperature hydrogenation of 1- and 2-phenylethanols with noble metal catalysts in supercritical carbon dioxide

2006 ◽  
Vol 37 (1) ◽  
pp. 87-93 ◽  
Author(s):  
Takafumi Sato ◽  
Osamu Sato ◽  
Kunio Arai ◽  
Eiichi Mine ◽  
Norihito Hiyoshi ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Low Temperature ◽  
Supercritical Carbon Dioxide ◽  
Noble Metal ◽  
Metal Catalysts ◽  
Noble Metal Catalysts ◽  
Supercritical Carbon
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