In-situ Raman Studies of Ethylene Oxidation at Ag(111) and Ag(110) under Catalytic Reaction Conditions

1993 ◽  
Vol 97 (3) ◽  
pp. 322-325 ◽  
Author(s):  
X. Bao ◽  
B. Pettinger ◽  
G. Ertl ◽  
R. Schlögl
Keyword(s):  
Catalytic Reaction ◽  
Ethylene Oxidation ◽  
Reaction Conditions ◽  
In Situ Raman

Ligand free copper(i)-catalyzed synthesis of diaryl ether with Cs2CO3via a free radical path

2015 ◽  
Vol 44 (27) ◽  
pp. 12086-12090 ◽  
Author(s):  
Hong-Jie Chen ◽  
Mei-Chun Tseng ◽  
I-Jui Hsu ◽  
Wei-Ting Chen ◽  
Chien-Chung Han ◽  
...  
Keyword(s):  
Free Radical ◽  
Catalytic Reaction ◽  
Coupling Reaction ◽  
Reaction Conditions ◽  
Esi Ms ◽  
Ms Analysis ◽  
Diaryl Ether ◽  
Ligand Free

Complexes [Cu(i)(2,4-dimethylphenoxy)2]− (A) and [Cu(ii)(2,4-dimethylphenoxy)2(p-tolyl)]− (B) were observed by in situ ESI-MS analysis of the ligand free copper(i)-catalyzed C–O coupling reaction using Cs2CO3 under the catalytic reaction conditions.

In situ AP-XPS study on reduction of oxidized Rh catalysts under CO exposure and catalytic reaction conditions

2021 ◽  
Vol 54 (20) ◽  
pp. 204005
Author(s):  
Ryo Toyoshima ◽  
Kohei Ueda ◽  
Yuki Koda ◽  
Hiroshi Kodama ◽  
Hirosuke Sumida ◽  
...  
Keyword(s):  
Catalytic Reaction ◽  
Reaction Conditions ◽  
Xps Study

scholarly journals Mechanochemical Friedel–Crafts acylations

2019 ◽  
Vol 15 ◽  
pp. 1313-1320 ◽  
Author(s):  
Mateja Đud ◽  
Anamarija Briš ◽  
Iva Jušinski ◽  
Davor Gracin ◽  
Davor Margetić
Keyword(s):  
Reaction Mechanism ◽  
Aromatic Hydrocarbons ◽  
Ex Situ ◽  
Mechanochemical Reaction ◽  
Reaction Parameters ◽  
Reaction Conditions ◽  
In Situ Raman ◽  
Optimal Reaction ◽  
Acylation Reactions

Friedel–Crafts (FC) acylation reactions were exploited in the preparation of ketone-functionalized aromatics. Environmentally more friendly, solvent-free mechanochemical reaction conditions of this industrially important reaction were developed. Reaction parameters such as FC catalyst, time, ratio of reagents and milling support were studied to establish the optimal reaction conditions. The scope of the reaction was explored by employment of different aromatic hydrocarbons in conjunction with anhydrides and acylation reagents. It was shown that certain FC-reactive aromatics could be effectively functionalized by FC acylations carried out under ball-milling conditions without the presence of a solvent. The reaction mechanism was studied by in situ Raman and ex situ IR spectroscopy.

Possible intermediates of Cu(phen)-catalyzed C–O cross-coupling of phenol with an aryl bromide by in situ ESI-MS and EPR studies

2014 ◽  
Vol 43 (29) ◽  
pp. 11410-11417 ◽  
Author(s):  
Hong-Jie Chen ◽  
I-Jui Hsu ◽  
Mei-Chun Tseng ◽  
Shin-Guang Shyu
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
Catalytic Reaction ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Ionization Mass ◽  
Aryl Bromide ◽  
Reaction Conditions ◽  
Esi Ms

Cu(phen) complexes were observed in the copper(i)-catalyzed C–O coupling reaction using K2CO3 as the base and phen as the ligand under the catalytic reaction conditions by in situ electrospray ionization mass spectrometry (ESI-MS) and EPR analysis.

“In-Situ Raman Spectroscopy of Electronic Processes in Fullerene Thin Films

2002 ◽  
Vol 725 ◽  
Author(s):  
S.B. Phelan ◽  
B.S. O'Connell ◽  
G. Farrell ◽  
G. Chambers ◽  
H.J. Byrne
Keyword(s):  
Thin Film ◽  
Indium Tin Oxide ◽  
Low Temperatures ◽  
In Situ Raman Spectroscopy ◽  
State Reduction ◽  
In Situ Raman ◽  
Linear Behavior ◽  
Current Voltage ◽  
Solid State Reduction

AbstractThe current voltage characteristics of C60 thin film sandwich structures fabricated by vacuum deposition on indium tin oxide (ITO) with an aluminium top electrode are presented and discussed. A strongly non-linear behavior and a sharp increase in the device conductivity was observed at relatively low voltages (∼2V), at both room and low temperatures (20K). At room temperature the system is seen to collapse, and in situ Raman measurements indicate a solid state reduction of the fullerene thin film to form a polymeric state. The high conductivity state was seen to be stable at elevated voltages and low temperatures. This state is seen to be reversible with the application of high voltages. At these high voltages the C60 film was seen to sporadically emit white light at randomly localized points analogous to the much documented Electroluminescence in single crystals.

In Situ Raman Spectroscopy Studies on La2CaB10O19 Crystal Growth

2020 ◽  
Vol 20 (10) ◽  
pp. 6604-6609
Author(s):  
Shanshan Liu ◽  
Guochun Zhang ◽  
Kai Feng ◽  
Yanyang Han ◽  
Tao He ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Crystal Growth ◽  
In Situ Raman Spectroscopy ◽  
In Situ Raman ◽  
Spectroscopy Studies
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