Molecular engineering of intrinsically microporous polybenzimidazole for energy-efficient gas separation

2022 ◽  
Vol 26 ◽  
pp. 101271
Author(s):  
Mahmoud A. Abdulhamid ◽  
Rifan Hardian ◽  
Prashant M. Bhatt ◽  
Shuvo Jit Datta ◽  
Adrian Ramirez ◽  
...  
Keyword(s):  
Gas Separation ◽  
Energy Efficient ◽  
Molecular Engineering

scholarly journals Energy-efficient polymeric gas separation membranes for a sustainable future: A review

Polymer ◽  
2013 ◽  
Vol 54 (18) ◽  
pp. 4729-4761 ◽  
Author(s):  
David F. Sanders ◽  
Zachary P. Smith ◽  
Ruilan Guo ◽  
Lloyd M. Robeson ◽  
James E. McGrath ◽  
...  
Keyword(s):  
Gas Separation ◽  
Energy Efficient ◽  
Separation Membranes ◽  
Gas Separation Membranes ◽  
Sustainable Future

Highly permeable thermally rearranged polymer composite membranes with a graphene oxide scaffold for gas separation

2018 ◽  
Vol 6 (17) ◽  
pp. 7668-7674 ◽  
Author(s):  
Seungju Kim ◽  
Jue Hou ◽  
Yuqi Wang ◽  
Ranwen Ou ◽  
George P. Simon ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Gas Separation ◽  
Polymer Composite ◽  
Energy Efficient ◽  
Composite Membranes ◽  
Selective Layer

A 2D scaffold of graphene oxide is formed inside a polymer to assist the fabrication of a defect-free and ultrathin (<40 nm) selective layer of thermally rearranged polybenzoxazole-co-imide membrane for energy-efficient CO2 separation.

scholarly journals Mem-brain Gas Separation Membranes for Energy-efficient Processes

2012 ◽  
Vol 44 ◽  
pp. 1554-1556
Author(s):  
M. Czyperek ◽  
S. Baumann ◽  
H.J. Bouwmeester ◽  
W.A. Meulenberg ◽  
M. Modigell ◽  
...  
Keyword(s):  
Gas Separation ◽  
Energy Efficient ◽  
Separation Membranes ◽  
Gas Separation Membranes

Molecular engineering of PIM-1/Matrimid blend membranes for gas separation

2012 ◽  
Vol 407-408 ◽  
pp. 47-57 ◽  
Author(s):  
W.F. Yong ◽  
F.Y. Li ◽  
Y.C. Xiao ◽  
P. Li ◽  
K.P. Pramoda ◽  
...  
Keyword(s):  
Gas Separation ◽  
Molecular Engineering ◽  
Blend Membranes

Recovery of N2O: Energy-Efficient and Structure-Driven Clathrate-Based Greenhouse Gas Separation

2021 ◽  
Author(s):  
Jiyeong Jang ◽  
Sol Geo Lim ◽  
Jae Hak Jeong ◽  
Appu Vengattoor Raghu ◽  
Jong-Won Lee ◽  
...  
Keyword(s):  
Greenhouse Gas ◽  
Gas Separation ◽  
Energy Efficient

Fluorescence ratio imaging of dynamic intracellular ionic signals

1988 ◽  
Vol 46 ◽  
pp. 42-43
Author(s):  
R. Y. Tsien ◽  
A. Minta ◽  
M. Poenie ◽  
J.P.Y. Kao ◽  
A. Harootunian
Keyword(s):  
Binding Sites ◽  
Living Cells ◽  
Molecular Engineering ◽  
Ph Indicators ◽  
Highly Sensitive ◽  
Fluorescence Ratio Imaging ◽  
Ratio Imaging ◽  
Technical Advances ◽  
Indicator Dyes ◽  
Fluorescein Dyes

Recent technical advances now enable the continuous imaging of important ionic signals inside individual living cells with micron spatial resolution and subsecond time resolution. This methodology relies on the molecular engineering of indicator dyes whose fluorescence is strong and highly sensitive to ions such as Ca2+, H+, or Na+, or Mg2+. The Ca2+ indicators, exemplified by fura-2 and indo-1, derive their high affinity (Kd near 200 nM) and selectivity for Ca2+ to a versatile tetracarboxylate binding site3 modeled on and isosteric with the well known chelator EGTA. The most commonly used pH indicators are fluorescein dyes (such as BCECF) modified to adjust their pKa's and improve their retention inside cells. Na+ indicators are crown ethers with cavity sizes chosen to select Na+ over K+: Mg2+ indicators use tricarboxylate binding sites truncated from those of the Ca2+ chelators, resulting in a more compact arrangement of carboxylates to suit the smaller ion.

A SEM/TEM examination of a ceramic membrane

1986 ◽  
Vol 44 ◽  
pp. 682-683
Author(s):  
C.E. Voegele-Kliewer ◽  
A.D. McMaster ◽  
G.W. Dirks
Keyword(s):  
Electron Microscopy ◽  
Gas Separation ◽  
Ceramic Membrane ◽  
Hydrogen Iodide ◽  
Separation Processes ◽  
Corning Glass ◽  
Gas Transport Properties ◽  
Porous Microstructure ◽  
Microscopy Techniques ◽  
The Relationship

Materials other than polymers, e.g. ceramic silicates, are currently being investigated for gas separation processes. The permeation characteristics of one such material, Vycor (Corning Glass #1370), have been reported for the separation of hydrogen from hydrogen iodide. This paper will describe the electron microscopy techniques applied to reveal the porous microstructure of a Vycor membrane. The application of these techniques has led to an increased understanding in the relationship between the substructure and the gas transport properties of this material.

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