scholarly journals Mechanistic Insight into the Superoxide Induced Ring Opening in Propylene Carbonate Based Electrolytes using in Situ Surface-Enhanced Infrared Spectroscopy

2016 ◽  
Vol 138 (11) ◽  
pp. 3745-3751 ◽  
Author(s):  
J. Padmanabhan Vivek ◽  
Neil Berry ◽  
Georgios Papageorgiou ◽  
Richard J. Nichols ◽  
Laurence J. Hardwick
Keyword(s):  
Infrared Spectroscopy ◽  
Propylene Carbonate ◽  
Ring Opening ◽  
Mechanistic Insight ◽  
Surface Enhanced ◽  
Insight Into

In situ loading of well-dispersed silver nanoparticles on nanocrystalline magnesium oxide for real-time monitoring of catalytic reactions by surface enhanced Raman spectroscopy

Nanoscale ◽  
2015 ◽  
Vol 7 (40) ◽  
pp. 16952-16959 ◽  
Author(s):  
Kaige Zhang ◽  
Gongke Li ◽  
Yuling Hu
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Catalytic Reactions ◽  
Reaction Intermediates ◽  
Reaction Conditions ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Nanocrystalline Magnesium Oxide ◽  
Insight Into

The surface-enhanced Raman spectroscopy (SERS) technique is of great importance for insight into the transient reaction intermediates and mechanistic pathways involved in heterogeneously catalyzed chemical reactions under actual reaction conditions, especially in water.

Poly(propylene carbonate): Insight into the Microstructure and Enantioselective Ring-Opening Mechanism

2012 ◽  
Vol 45 (21) ◽  
pp. 8604-8613 ◽  
Author(s):  
Khalifah A. Salmeia ◽  
Sergei Vagin ◽  
Carly E. Anderson ◽  
Bernhard Rieger
Keyword(s):  
Propylene Carbonate ◽  
Ring Opening ◽  
Poly Propylene ◽  
Insight Into

scholarly journals Polypropylene grafted with maleic anhydride and styrene as a compatibilizer for biodegradable poly(propylene carbonate)/polypropylene

2019 ◽  
Vol 14 ◽  
pp. 155892501984971
Author(s):  
Zheng Tian ◽  
Lisha Pan ◽  
Qing Pan
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Maleic Anhydride ◽  
Fourier Transform Infrared Spectroscopy ◽  
Propylene Carbonate ◽  
Ring Opening ◽  
Fourier Transform Infrared ◽  
Resonance Spectroscopy ◽  
Ring Opening Reactions ◽  
Poly Propylene

Polypropylene grafted with maleic anhydride and styrene [PP- g-(MAH- co-St)] was prepared by melt grafting. Fourier transform-infrared spectroscopy showed that maleic anhydride in the form of cyclic anhydride was successfully grafted onto the main chains of polypropylene. PP- g-(MAH- co-St) acts as a compatibilizer for the poly(propylene carbonate)/polypropylene meltblown nonwoven fabric slices. The effect of different contents and grafting proportions of PP- g-(MAH- co-St) on the structure and performance of the poly(propylene carbonate)/polypropylene slices was investigated. The poly(propylene carbonate)/polypropylene slices had favorable compatibility, tensile properties, thermal stability, and degradability, and their melt flow rates were reduced by the addition of PP- g-(MAH- co-St). Fourier transform-infrared spectroscopy and 1H nuclear magnetic resonance spectroscopy spectra showed that ring-opening reactions occur between the anhydride functional groups of PP- g-(MAH- co-St) and poly(propylene carbonate). Ring-opening reactions, chemical bonds, cocrystallization, increased interface adhesion forces, and reduced interfacial tension may be the mechanisms by which PP- g-(MAH- co-St) acts a compatibilizer for poly(propylene carbonate)/polypropylene slices.

Mechanistic insight into initiation and regioselectivity in the copolymerization of epoxides and anhydrides by Al complexes

2020 ◽  
Vol 56 (90) ◽  
pp. 14027-14030
Author(s):  
Yanay Popowski ◽  
Juan J. Moreno ◽  
Asa W. Nichols ◽  
Shelby L. Hooe ◽  
Caitlin J. Bouchey ◽  
...  
Keyword(s):  
Ring Opening ◽  
Mechanistic Insight ◽  
Insight Into

Pentacoordinate Al catalysts comprising bipyridine (bpy) and phenanthroline (phen) backbones were synthesized, their activity in epoxide/anhydride copolymerization studied, and the products of stoichiometric ring-opening of anhydrides characterized.

Mechanistic Insight into the Catalytic Oxidation of Cyclohexane over Carbon Nanotubes: Kinetic and In Situ Spectroscopic Evidence

2013 ◽  
Vol 19 (30) ◽  
pp. 9818-9824 ◽  
Author(s):  
Xixian Yang ◽  
Hongjuan Wang ◽  
Jing Li ◽  
Wenxu Zheng ◽  
Rong Xiang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Catalytic Oxidation ◽  
Spectroscopic Evidence ◽  
Mechanistic Insight ◽  
Insight Into

scholarly journals In Situ Surface-Enhanced Infrared Spectroscopy to Identify Oxygen Reduction Products in Nonaqueous Metal–Oxygen Batteries

2017 ◽  
Vol 121 (36) ◽  
pp. 19657-19667 ◽  
Author(s):  
J. Padmanabhan Vivek ◽  
Neil G. Berry ◽  
Jianli Zou ◽  
Richard J. Nichols ◽  
Laurence J. Hardwick
Keyword(s):  
Infrared Spectroscopy ◽  
Oxygen Reduction ◽  
Surface Enhanced

scholarly journals Structural resolution and mechanistic insight into hydrogen adsorption in flexible ZIF-7

2021 ◽  
Author(s):  
Ryan A. Klein ◽  
Sarah Shulda ◽  
Philip A. Parilla ◽  
Pierre Le Magueres ◽  
Rachelle K. Richardson ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Hydrogen Adsorption ◽  
Gas Storage ◽  
Powder Neutron Diffraction ◽  
Mechanistic Insight ◽  
Insight Into

Hydrogen induced flexibility in MOFs can be leveraged to increase useable gas storage capacities. Here hydrogen adsorption isothermal and in situ powder neutron diffraction measurements combine to reveal the mechanism driving flexibility in ZIF-7.

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