Pronounced Size Dependence in Structure and Morphology of Gas-Phase Produced, Partially Oxidized Cobalt Nanoparticles under Catalytic Reaction Conditions

ACS Nano ◽  
2015 ◽  
Vol 9 (6) ◽  
pp. 5984-5998 ◽  
Author(s):  
Stephan Bartling ◽  
Chunrong Yin ◽  
Ingo Barke ◽  
Kevin Oldenburg ◽  
Hannes Hartmann ◽  
...  
Keyword(s):  
Gas Phase ◽  
Catalytic Reaction ◽  
Size Dependence ◽  
Cobalt Nanoparticles ◽  
Reaction Conditions ◽  
Structure And Morphology

Gas phase oxidation of furfural to maleic anhydride on V 2 O 5 /γ-Al 2 O 3 catalysts: Reaction conditions to slow down the deactivation

2017 ◽  
Vol 348 ◽  
pp. 265-275 ◽  
Author(s):  
N. Alonso-Fagúndez ◽  
M. Ojeda ◽  
R. Mariscal ◽  
J.L.G. Fierro ◽  
M. López Granados
Keyword(s):  
Maleic Anhydride ◽  
Gas Phase ◽  
Reaction Conditions ◽  
Phase Oxidation ◽  
Gas Phase Oxidation

scholarly journals In Situ FTIR Reactor for Monitoring Gas-Phase Products during a (Photo)catalytic Reaction in the Liquid Phase

2018 ◽  
Vol 90 (24) ◽  
pp. 14586-14592 ◽  
Author(s):  
Igor Telegeiev ◽  
Oumaima Thili ◽  
Adrien Lanel ◽  
Philippe Bazin ◽  
Yoann Levaque ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Gas Phase ◽  
Catalytic Reaction ◽  
In Situ Ftir

Durability study of platinum nanoparticles supported on gas-phase synthesized graphene in oxygen reduction reaction conditions

2019 ◽  
Vol 467-468 ◽  
pp. 1181-1186 ◽  
Author(s):  
Erwan Bertin ◽  
Adrian Münzer ◽  
Sven Reichenberger ◽  
Rene Streubel ◽  
Thomas Vinnay ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Gas Phase ◽  
Platinum Nanoparticles ◽  
Reduction Reaction ◽  
Reaction Conditions

scholarly journals Cobalt nanoparticles confined in carbon matrix for probing the size dependence in Fischer-Tropsch synthesis

2019 ◽  
Vol 369 ◽  
pp. 143-156 ◽  
Author(s):  
Qun-Xing Luo ◽  
Li-Peng Guo ◽  
Si-Yu Yao ◽  
Jun Bao ◽  
Zhao-Tie Liu ◽  
...  
Keyword(s):  
Size Dependence ◽  
Carbon Matrix ◽  
Cobalt Nanoparticles ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis

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 Dioxygen dissociation over man-made system at room temperature to form the active α-oxygen for methane oxidation

2020 ◽  
Vol 6 (20) ◽  
pp. eaaz9776 ◽  
Author(s):  
Edyta Tabor ◽  
Jiri Dedecek ◽  
Kinga Mlekodaj ◽  
Zdenek Sobalik ◽  
Prokopis C. Andrikopoulos ◽  
...  
Keyword(s):  
Gas Phase ◽  
Room Temperature ◽  
Practical Importance ◽  
Oxidation Reactions ◽  
Reaction Conditions ◽  
Oxidation Of Methane ◽  
Oxidation Properties ◽  
Enzyme Functionality ◽  
Methane Utilization ◽  
Selective Oxidation Reactions

Activation of dioxygen attracts enormous attention due to its potential for utilization of methane and applications in other selective oxidation reactions. We report a cleavage of dioxygen at room temperature over distant binuclear Fe(II) species stabilized in an aluminosilicate matrix. A pair of formed distant α-oxygen species [i.e., (Fe(IV)═O)2+] exhibits unique oxidation properties reflected in an outstanding activity in the oxidation of methane to methanol at room temperature. Designing a man-made system that mimicks the enzyme functionality in the dioxygen activation using both a different mechanism and structure of the active site represents a breakthrough in catalysis. Our system has an enormous practical importance as a potential industrial catalyst for methane utilization because (i) the Fe(II)/Fe(IV) cycle is reversible, (ii) the active Fe centers are stable under the reaction conditions, and (iii) methanol can be released to gas phase without the necessity of water or water-organic medium extraction.

Three consecutive steps over the chirally modified Pt surface: asymmetric catalytic cascade reaction of 2-nitrophenylpyruvates

2015 ◽  
Vol 5 (2) ◽  
pp. 697-704 ◽  
Author(s):  
György Szőllősi ◽  
Lenke Kovács ◽  
Zsolt Makra
Keyword(s):  
Metal Surface ◽  
Catalytic Reaction ◽  
Cascade Reaction ◽  
Heterogeneous Catalytic Reaction ◽  
Reaction Conditions ◽  
Asymmetric Catalytic ◽  
Heterogeneous Catalytic

The influence of the reaction conditions on the asymmetric heterogeneous catalytic reaction of 2-nitrophenylpyruvates over Pt modified with cinchonidine showed that all three steps of the cascade occur on the metal surface.

Oxidation of Benzaldehyde to Benzoic Acid with Aqueous Hydrogen Peroxide over Dodecatungstophosphoric Acid

2013 ◽  
Vol 781-784 ◽  
pp. 219-222
Author(s):  
Qiu Ying Huang ◽  
Bei Bei Dong ◽  
Xiu Cheng Zheng
Keyword(s):  
Hydrogen Peroxide ◽  
Benzoic Acid ◽  
Catalytic Reaction ◽  
Type Structure ◽  
Optimal Parameters ◽  
Reaction Parameters ◽  
Aqueous Hydrogen Peroxide ◽  
Reaction Conditions ◽  
Prepared Sample ◽  
Keggin Type

Dodecatungstophosphoric acid was synthesized and used as catalyst for oxidation of benzaldehyde to benzoic acid with aqueous hydrogen peroxide. The effect of various catalytic reaction parameters including time, temperatures, and the amount of catalyst on the yield of benzoic acid was investigated in details. The results indicated that the as-prepared sample was in the keggin-type structure and the optimal parameters under the reaction conditions were as follows: 0.5 g of catalyst, reacted at 80 C for 5 h.

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