EFFECT OF THE CONTACT BETWEEN CARBON BLACK AND CATALYST PARTICLES ON CARBON OXIDATION RATE: EXPERIMENTS AND MODELLING

2007 ◽  
Author(s):  
M. Issa ◽  
C. Petit ◽  
H. Mahzoul ◽  
A. Brillard ◽  
J.-F. Brilhac
2017 ◽  
Vol 53 (84) ◽  
pp. 11556-11559 ◽  
Author(s):  
Wang Wang ◽  
Jin Luo ◽  
Shengli Chen

Carbon may suffer severe oxidation during OER, leading to overestimation of the activity of carbon-black based electrocatalysts towards OER.


2012 ◽  
Vol 260-261 ◽  
pp. 627-630
Author(s):  
Lian Chen

Based on the composition and characteristics of steelmaking dry-dedusting dust and oxide scale in hot-rolling mill, cold briquetting ores were processed by dust and oxide scale, and applied to converter vanadium recover. The research results show that, hot metal carbon oxidation rate and vanadium oxidation rate increased with the increased use of cold briquetting ores, and the TFe content of vanadium slag reduced, the consumption of iron and steel materials decreased. Not only can effectively use the steelmaking mill and hot-rolling mill waste, but also can improve the product quality of the converter vanadium recover.


RSC Advances ◽  
2016 ◽  
Vol 6 (30) ◽  
pp. 25601-25604
Author(s):  
Jianke Ye ◽  
Ke Bao ◽  
Yan Wen ◽  
Jiangtao Li

The annealing of TiC-coated carbon black in N2 at 1000–1300 °C resulted in formation of a TiCxNy solid solution and grain growth, which significantly increased the commencement and completion temperatures of carbon oxidation.


2012 ◽  
Vol 581-582 ◽  
pp. 924-927
Author(s):  
Lian Chen

Based on the composition and characteristics of steelmaking precipitator dust, cold briquetting ores were processed with scale and applied to converter vanadium recover. The research results show that the use of cold briquetting ores, molten iron carbon oxidation rate increased from 15.01% to 17.68%, vanadium oxidation rate increased from 79.47% to 82.07%, the TFe content of vanadium slag reduced, the consumption of iron and steel materials decreased. In the process of converter vanadium recover, the amount of coolant could cut down.


Author(s):  
Akira Tanaka ◽  
David F. Harling

In the previous paper, the author reported on a technique for preparing vapor-deposited single crystal films as high resolution standards for electron microscopy. The present paper is intended to describe the preparation of several high resolution standards for dark field microscopy and also to mention some results obtained from these studies. Three preparations were used initially: 1.) Graphitized carbon black, 2.) Epitaxially grown particles of different metals prepared by vapor deposition, and 3.) Particles grown epitaxially on the edge of micro-holes formed in a gold single crystal film.The authors successfully obtained dark field micrographs demonstrating the 3.4Å lattice spacing of graphitized carbon black and the Au single crystal (111) lattice of 2.35Å. The latter spacing is especially suitable for dark field imaging because of its preparation, as in 3.), above. After the deposited film of Au (001) orientation is prepared at 400°C the substrate temperature is raised, resulting in the formation of many square micro-holes caused by partial evaporation of the Au film.


Author(s):  
P. Sadhukhan ◽  
J. B. Zimmerman

Rubber stocks, specially tires, are composed of natural rubber and synthetic polymers and also of several compounding ingredients, such as carbon black, silica, zinc oxide etc. These are generally mixed and vulcanized with additional curing agents, mainly organic in nature, to achieve certain “designing properties” including wear, traction, rolling resistance and handling of tires. Considerable importance is, therefore, attached both by the manufacturers and their competitors to be able to extract, identify and characterize various types of fillers and pigments. Several analytical procedures have been in use to extract, preferentially, these fillers and pigments and subsequently identify and characterize them under a transmission electron microscope.Rubber stocks and tire sections are subjected to heat under nitrogen atmosphere to 550°C for one hour and then cooled under nitrogen to remove polymers, leaving behind carbon black, silica and zinc oxide and 650°C to eliminate carbon blacks, leaving only silica and zinc oxide.


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