Effect of activated carbon surface functional groups on nano-lead electrodeposition and hydrogen evolution and its applications in lead-carbon batteries

2015 ◽  
Vol 186 ◽  
pp. 654-663 ◽  
Author(s):  
Leying Wang ◽  
Hao Zhang ◽  
Gaoping Cao ◽  
Wenfeng Zhang ◽  
Hailei Zhao ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Hydrogen Evolution ◽  
Functional Groups ◽  
Carbon Surface ◽  
Surface Functional Groups

scholarly journals Research application of K2CO3 activated coal coal and processing by HNO3 from cake shoulder to process Methylene Blue color

2020 ◽  
Vol 4 (1) ◽  
pp. First
Author(s):  
Dao Minh Trung
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Functional Groups ◽  
Carbon Surface ◽  
Cellulose Content ◽  
Blue Color ◽  
Surface Functional Groups ◽  
Research Application ◽  
Grain Processing ◽  
Activated Coal

Macadamia is a tree that produces dried fruits, with each ton of macadamia seeds producing 70 - 77% of the shell. Annually, the grain processing companies in Vietnam produce thousands of tons of seeds and release tens of thousands of tons of shells. As the demand for macadamia nuts is constantly increasing in the market, more in-depth studies are needed to handle this agricultural residue. Macadamia shell has a higher surface area than other seed pods and their ash content is very low at only 0.22%, the cellulose content in the shell is about 41.2%, this shows that Macadamia shell has the potential to prepare activated carbon when burning at high temperatures. The activated carbon surface can be modified appropriately to change adsorption characteristics, forming different types of surface functional groups (oxygen functional groups, carbon surface functional groups, carbon functional groups, carbon - nitrogen, carbon - halogen) and make coal more suitable for special applications. Results of researching to prepare bio-denatured material from activated carbon K2CO3 by chemical method using HNO3 agent with optimal denaturing conditions such as concentration of 21%, denaturation time of 12 hours, degree MB adsorption reached 193.13 mg/g. The results of methylene blue adsorption adsorption tests at the optimal conditions show that at pH = 9.5 with the appropriate dose of coal is 1g/L in 120 minutes, it can be processed to reach 79.36% efficiency for water. Methylene Blue waste is 70 mg/L.

Catalytic Wet Air Oxidation of Phenol over Oxidized Activated Carbon

2013 ◽  
Vol 345 ◽  
pp. 176-179
Author(s):  
Guo Yang ◽  
Xing Yong Liu ◽  
Fu Tao Wang
Keyword(s):  
Catalytic Activity ◽  
Activated Carbon ◽  
Functional Groups ◽  
Removal Rate ◽  
Carbon Surface ◽  
Air Oxidation ◽  
Wet Air Oxidation ◽  
Surface Functional Groups ◽  
Modified Activated Carbon ◽  
Oxidized Activated Carbon

A commercial activated carbon was oxidized with nitric acid to tailor the structure of pore and adjust the distribution of surface functional groups. The textual properties of catalysts was characterized using N2adsorption, and Boehm titration was applied to quantitative analysis of the functional groups on activated carbon surface. The catalytic activity of modified activated carbon was performed by trickle bed at specific temperature and pressure. The oxidized activated carbon displayed lower removal rate for phenol. This phenomenon was reasonably interpreted by small specific surface area and increase in oxygen-containing surface functional groups. The catalytic activity test showed that higher reaction temperature and higher oxygen partial pressure were favorable for phenol conversion.

scholarly journals Effect of carbon surface functional groups on the synthesis of Ru/C catalysts for supercritical water gasification

2015 ◽  
Vol 5 (7) ◽  
pp. 3658-3666 ◽  
Author(s):  
Gaël Peng ◽  
Fabian Gramm ◽  
Christian Ludwig ◽  
Frédéric Vogel
Keyword(s):  
Functional Groups ◽  
Supercritical Water ◽  
Elemental Analysis ◽  
Carbon Support ◽  
Carbon Surface ◽  
Surface Functional Groups ◽  
Boehm Titration ◽  
Supercritical Water Gasification

A carbon support was treated with HNO3 to create surface functional groups (e.g. –COOH, –OH), which were then characterized by TGA, TPD, CNS elemental analysis, and Boehm titration.

Oxidation of activated carbon by hydrogen peroxide. Study of surface functional groups by FT-i.r.

Fuel ◽  
1994 ◽  
Vol 73 (3) ◽  
pp. 387-395 ◽  
Author(s):  
V GOMEZSERRANO ◽  
M ACEDORAMOS ◽  
A LOPEZPEINADO ◽  
C VALENZUELACALAHORRO
Keyword(s):  
Hydrogen Peroxide ◽  
Activated Carbon ◽  
Functional Groups ◽  
Surface Functional Groups
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