scholarly journals Tuning the switching pressure in square lattice coordination networks by metal cation substitution

2022 ◽  
Author(s):  
Michael Zaworotko ◽  
Shi-Qiang Wang ◽  
Shaza Darwish ◽  
Debobroto Sensharma
Keyword(s):  
Metal Cation ◽  
Sorption Isotherms ◽  
Square Lattice ◽  
Cation Substitution ◽  
Coordination Networks

Coordination networks that undergo guest-induced switching between “closed” nonporous and “open” porous phases are of increasing interest as the resulting stepped sorption isotherms can offer exceptional working capacities for gas...

scholarly journals Tuning the switching pressure in square lattice coordination networks by metal cation substitution

2021 ◽  
Author(s):  
Shi-Qiang Wang ◽  
Shaza Darwish ◽  
Debobroto Sensharma ◽  
Michael J. Zaworotko
Keyword(s):  
Metal Cation ◽  
Sorption Isotherms ◽  
Gas Storage ◽  
Square Lattice ◽  
Cation Substitution ◽  
Coordination Networks ◽  
Fast Switching ◽  
Switching Event ◽  
Co2 Sorption

Coordination networks that undergo guest-induced switching between “closed” nonporous and “open” porous phases are of increasing interest as the resulting stepped sorption isotherms can offer exceptional working capacities for gas storage applications. For practical utility, the gate ad/desorption pressures (Pga/Pgd) must lie between the storage (Pst) and delivery (Pde) pressures and there must be fast switching kinetics. Herein we study the effect of metal cation substitution on the switching pressure of a family of square lattice coordination networks [M(4,4’-bipyridine)2(NCS)]n (sql-1-M-NCS, M = Fe, Co and Ni) with respect to CO2 sorption. The Clausius-Clapeyron equation was used to correlate Pga/Pgd and temperature. At 298 K, Pga/Pgd values were found to vary from 31.6/26.7 bar (M = Fe) to 26.7/20.9 bar (M = Co) and 18.5/14.6 bar (M = Ni). The switching event occurs within 10 minutes as verified by dynamic CO2 sorption tests. In addition, in situ synchrotron PXRD and molecular simulations provided structural insight into the observed switching event, which we attribute to layer expansion of sql-1-M-NCS via intercalation and inclusion of CO2 molecules. This study could pave the way for rational control over Pga/Pgd in switching adsorbent layered materials and enhance their potential utility in gas storage applications.

scholarly journals Tuning Pore Size in Square-Lattice Coordination Networks for Size-Selective Sieving of CO2

2016 ◽  
Vol 55 (35) ◽  
pp. 10268-10272 ◽  
Author(s):  
Kai-Jie Chen ◽  
David G. Madden ◽  
Tony Pham ◽  
Katherine A. Forrest ◽  
Amrit Kumar ◽  
...  
Keyword(s):  
Pore Size ◽  
Square Lattice ◽  
Coordination Networks

Metal cation substitution in lepidocrocite (γ-FeOOH)

2006 ◽  
Vol 70 (18) ◽  
pp. A210 ◽  
Author(s):  
M. Gräfe ◽  
B. Singh
Keyword(s):  
Metal Cation ◽  
Cation Substitution

scholarly journals Tuning Pore Size in Square-Lattice Coordination Networks for Size-Selective Sieving of CO2

2016 ◽  
Vol 128 (35) ◽  
pp. 10424-10428 ◽  
Author(s):  
Kai-Jie Chen ◽  
David G. Madden ◽  
Tony Pham ◽  
Katherine A. Forrest ◽  
Amrit Kumar ◽  
...  
Keyword(s):  
Pore Size ◽  
Square Lattice ◽  
Coordination Networks

scholarly journals Acetylene storage performance of [Ni(4,4’-bipyridine)2(NCS)2]n, a switching square lattice coordination network

2022 ◽  
Author(s):  
Michael Zaworotko ◽  
Shi-Qiang Wang ◽  
Shaza Darwish ◽  
Xian-He Bu ◽  
Ze Chang ◽  
...  
Keyword(s):  
Sorption Isotherms ◽  
Square Lattice ◽  
Storage Performance ◽  
Coordination Network

We report that the previously reported square lattice coordination network [Ni(4,4‘-bipyridine)2(NCS)2]n, sql-1-Ni-NCS, undergoes acetylene (C2H2) induced switching between closed (non-porous) and open (porous) phases. The resulting stepped sorption isotherms exhibit...

Solvent-directed control over the topology of entanglement in square lattice (sql) coordination networks

2019 ◽  
Vol 55 (10) ◽  
pp. 1454-1457 ◽  
Author(s):  
Rana Sanii ◽  
Carol Hua ◽  
Ewa Patyk-Kaźmierczak ◽  
Michael J. Zaworotko
Keyword(s):  
Solvothermal Synthesis ◽  
Square Lattice ◽  
Coordination Networks ◽  
Imidazole Ligand

We report herein that the mode of entanglement in square lattice, sql, coordination networks formed by an extended bis-imidazole ligand, L, can be controlled by the solvent used during solvothermal synthesis.

Difference between transition metal cation substitution and Nonstoichiometric addition on nanostructure and thermoelectric performance of complex oxide ceramics

2019 ◽  
Vol 277 ◽  
pp. 427-433
Author(s):  
Liang Liang ◽  
Cesar-Octavio Romo-De-La-Cruz ◽  
Paulo Carvilo ◽  
Bryan Jackson ◽  
Ellena Gemmen ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Cation ◽  
Complex Oxide ◽  
Thermoelectric Performance ◽  
Cation Substitution ◽  
Oxide Ceramics ◽  
Transition Metal Cation

scholarly journals Effects of metal cation substitution on hexavalent chromium reduction by green rust

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Andrew N. Thomas ◽  
Elisabeth Eiche ◽  
Jörg Göttlicher ◽  
Ralph Steininger ◽  
Liane G. Benning ◽  
...  
Keyword(s):  
Hexavalent Chromium ◽  
Metal Cation ◽  
Green Rust ◽  
Cation Substitution ◽  
Chromium Reduction
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