scholarly journals Chemical Upgrade of Carbon Monoxide to Acetate on an Atomically Dispersed Copper Catalyst via CO-insertion

2021 ◽  
pp. 100418
Author(s):  
Xianbiao Fu ◽  
Yuxuan Wang ◽  
Hao Shen ◽  
Yanan Yu ◽  
Fei Xu ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Copper Catalyst ◽  
Co Insertion

THE KINETICS OF CUPRENE GROWTH

1950 ◽  
Vol 28b (7) ◽  
pp. 358-372
Author(s):  
Cyrias Ouellet ◽  
Adrien E. Léger
Keyword(s):  
Nitric Oxide ◽  
Activation Energy ◽  
Carbon Monoxide ◽  
Apparent Activation Energy ◽  
Copper Catalyst ◽  
Maximum Velocity ◽  
Static System ◽  
Reaction Velocity ◽  
First Order ◽  
Kinetics Of

The kinetics of the polymerization of acetylene to cuprene on a copper catalyst between 200° and 300 °C. have been studied manometrically in a static system. The maximum velocity of the autocatalytic reaction shows a first-order dependence upon acetylene pressure. The reaction is retarded in the presence of small amounts of oxygen but accelerated by preoxidation of the catalyst. The apparent activation energy, of about 10 kcal. per mole for cuprene growth between 210° and 280 °C., changes to about 40 kcal. per mole above 280 °C. at which temperature a second reaction seems to set in. Hydrogen, carbon monoxide, or nitric oxide has no effect on the reaction velocity. Series of five successive seedings have been obtained with cuprene originally grown on cuprite, and show an effect of aging of the cuprene.

scholarly journals PENGGUNAAN TEMBAGA SEBAGAI BAHAN CATALYTIC CONVERTER TERHADAP PERFORMA MESIN SEPEDA MOTOR SATRIA FU 150

2018 ◽  
Vol 3 (2) ◽  
pp. 97-106
Author(s):  
Muhammad Zaki ◽  
Abdul Ghofur ◽  
Sigit Mujiarto
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Chemical Reaction ◽  
Catalytic Converter ◽  
Copper Catalyst ◽  
Engine Performance ◽  
Copper Plate

Many motorcycles  increased  within past few years, the gas emmited from the motorclyce will be polluted  the population. One of technology that can reduce the emmited gas is using catalytic converter on the muffler. Catalytic converter is a catalyst that can alter or accelerate a matter (chemical reaction) of a carbon monoxide into carbon dioxide. In this research will use two types of catalytic converter that is honey comb and a copper plate. From the test can be seen that the catalytic converter with a honey comb shape better in terms of engine performance than the catalytic converter shaped plate. Compared wihtout any catalytic converter, the highest percentage honey comb catalyst reduce  the power within 0.12 HP, and torque increased to 0.04 Nm. While the highest copper catalyst  that reduce the power within 0.71 HP, and torque decreased to 0.2 Nm.

scholarly journals Nickel-catalyzed carbonylation of thioacetates with aryl iodides via CO insertion and C–S bond cleavage

2021 ◽  
pp. 174751982110281
Author(s):  
Wen-Peng Mai ◽  
Hong-Da Sui ◽  
Ming-Xiu Lv ◽  
Kui Lu
Keyword(s):  
Carbon Monoxide ◽  
Bond Cleavage ◽  
Cost Effective ◽  
Direct Approach ◽  
Coupling Process ◽  
Aryl Iodides ◽  
Co Insertion

Aryl thioesters are synthesized via nickel-catalyzed carbonylation of thioacetates with aryl iodides. Alkyl thioacetates undergo coupling with carbon monoxide and aryl iodides to produce the desired aryl thioesters in moderate yields. This catalytic carbonylative coupling process provides a cost-effective and direct approach for the preparation of useful thioesters.

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