Synthesis and Characterization of a Composite Zeolite-Metglas Carbon Dioxide Sensor

2005 ◽  
Vol 15 (7) ◽  
pp. 1165-1170 ◽  
Author(s):  
I. G. Giannakopoulos ◽  
D. Kouzoudis ◽  
C. A. Grimes ◽  
V. Nikolakis
2010 ◽  
Vol 12 (33) ◽  
pp. 9927 ◽  
Author(s):  
Takeshi Makiya ◽  
Takashi Murakami ◽  
Satoshi Takeya ◽  
Amadeu K. Sum ◽  
Saman Alavi ◽  
...  

2013 ◽  
Vol 49 (5) ◽  
pp. 505-507 ◽  
Author(s):  
Kyoichi Tezuka ◽  
Renkai Shen ◽  
Taku Watanabe ◽  
Satoshi Takeya ◽  
Saman Alavi ◽  
...  

2005 ◽  
Vol 83 (6-7) ◽  
pp. 553-558 ◽  
Author(s):  
Bilal Baradie ◽  
Patricia HM Lai ◽  
Molly S Shoichet

Fluorosilicone polymers combine the properties of both fluorocarbons and siloxanes, yielding materials with unique properties. Novel crosslinked fluorosilicone polymers were synthesized by grafting diisocyanate-terminated polydimethylsiloxane (PDMS) to hydroxyl-functionalized fluoropolymers of poly(tetrafluoroethylene-co-vinyl acetate-co-vinyl alcohol) (PTFE-VAc-VA), as confirmed by elemental bulk and surface analysis. The fluorosilicone polymers containing 34 mol% of TFE were thermally stable with a degradation temperature of 267 °C. Fluorosilicone films were found to be more hydrophobic than the parent, non-grafted fluoropolymers; dynamic advancing and receding water contact angles for PTFE-co-VAc-co-VA-g-PDMS were 104° ± 1° and 61° ± 1°, respectively, whereas for PTFE-co-VAc they were 90° ± 2° and 59° ± 2°. The combined properties of thermal stability and hydrophobicity suggest that these fluorosilicones may be useful for coating and paint applications.Key words: fluoropolymers, fluorosilicone, polydimethylsiloxane, supercritical carbon dioxide.


2011 ◽  
Vol 42 (7) ◽  
pp. 757-761 ◽  
Author(s):  
Marcos R. Mauricio ◽  
Fernando C.G. Manso ◽  
Marcos H. Kunita ◽  
Daniel S. Velasco ◽  
Antonio C. Bento ◽  
...  

2018 ◽  
Vol 306 ◽  
pp. 128-137 ◽  
Author(s):  
Ewelina Leino ◽  
Narendra Kumar ◽  
Päivi Mäki-Arvela ◽  
Anne-Riikka Rautio ◽  
Johnny Dahl ◽  
...  

Reactions ◽  
2021 ◽  
Vol 2 (3) ◽  
pp. 323-332
Author(s):  
Luis G. Alves ◽  
Ana M. Martins

In this study, new mono- and di-alkoxido zirconium(IV) complexes supported by tetradentate dianionic cyclam ligands were synthesized and characterized. These compounds were obtained by reaction of the parent Zr(IV) dichlorido species with one or two equivalents of the corresponding lithium alkoxido, whereas (3,5-Me2Bn2Cyclam)Zr(OPh)2 was prepared by protonolysis of the orthometallated species (3,5-Me-C6H4CH2)2Cyclam)Zr with phenol. The solid-state molecular structures of (Bn2Cyclam)ZrCl(OtBu) and (4-tBuBn2Cyclam)Zr(OiPr)2 show a trigonal prismatic geometry around the metal centers. (Bn2Cyclam)Zr(SPh)(OtBu) and (Bn2Cyclam)ZrMe(OiPr) were prepared by reaction of (Bn2Cyclam)ZrCl(OR) (R = iPr, tBu) with one equivalent of LiSPh or MeMgCl, respectively. The reactions of (Bn2Cyclam)Zr(OiPr)2 and (4-tBuBn2Cyclam)Zr(OiPr)2 with carbon dioxide suggested the formation of species that correspond to the addition of four CO2 molecules.


2019 ◽  
Vol 1349 ◽  
pp. 012100
Author(s):  
N F Mohamad ◽  
N H Abdul Rani ◽  
M Onn ◽  
S I Sayed Jamaludin ◽  
A S I Ahmad Shafiq ◽  
...  

2017 ◽  
Vol 8 (1) ◽  
pp. 600-605 ◽  
Author(s):  
Changho Yoo ◽  
Yunho Lee

A heterobimetallic Ni-μ-CO2-κC:κ2O,O′-Fe species reminiscent of the CODH active site was synthesized, helping to elucidate the role of the unique iron.


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