Hybrid Ni Al layered double hydroxide: Characterization and in situ synchrotron XRD and vibrational spectroscopic studies under high-pressure

2019 ◽  
Vol 174 ◽  
pp. 152-158 ◽  
Author(s):  
Caroline S. de Matos ◽  
Marcelo M. Nóbrega ◽  
Marcia L.A. Temperini ◽  
Vera R.L. Constantino
Keyword(s):  
High Pressure ◽  
Layered Double Hydroxide ◽  
Spectroscopic Studies ◽  
Double Hydroxide ◽  
Synchrotron Xrd

In-situ infrared spectroscopic studies of hydroxyl in amphiboles at high pressure

2016 ◽  
Vol 101 (3) ◽  
pp. 706-712 ◽  
Author(s):  
Elizabeth C. Thompson ◽  
Andrew J. Campbell ◽  
Zhenxian Liu
Keyword(s):  
High Pressure ◽  
Spectroscopic Studies ◽  
Infrared Spectroscopic

Innovative in situ remediation of mine waters using a layered double hydroxide-biochar composite

2021 ◽  
pp. 127136
Author(s):  
Veronika Veselská ◽  
Hana Šillerová ◽  
Barbora Hudcová ◽  
Gildas Ratié ◽  
Petr Lacina ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
In Situ Remediation ◽  
Mine Waters ◽  
Double Hydroxide

Oxidative Carbonylation of Methanol to Dimethyl Carbonate by Chlorine-Free Homogeneous and Immobilized 2,2'-Bipyrimidine Modified Copper Catalyst

2007 ◽  
Vol 72 (8) ◽  
pp. 1094-1106 ◽  
Author(s):  
Szilárd Csihony ◽  
László T. Mika ◽  
Gábor Vlád ◽  
Katalin Barta ◽  
Christian P. Mehnert ◽  
...  
Keyword(s):  
High Pressure ◽  
Dimethyl Carbonate ◽  
Copper Catalyst ◽  
Catalytic Performance ◽  
Spectroscopic Studies ◽  
Oxidative Carbonylation ◽  
Cu Catalyst

A chlorine-free catalyst, prepared in situ from Cu(II) acetate and 2,2'-bipyrimidine, can be used for the oxidative carbonylation of methanol to dimethyl carbonate. In situ high pressure IR and NMR spectroscopic studies suggest the formation of [Cu(2,2'-bipyrimidine)(CO)- (OMe)] as one of the key intermediates. The catalytic performance of the 2,2'-bipyrimidine-modified Cu-catalyst is similar to the CuCl-based system. The chlorine free catalyst can be immobilized by using the copolymer of 5-vinyl-2,2'-bipyrimidine and styrene.

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