scholarly journals Palladium Nanosheet-Carbon Black Powder Composites for Selective Hydrogenation of Alkynes to Alkenes

2021 ◽  
Vol 4 (2) ◽  
pp. 2265-2277
Author(s):  
Ahmed Aït Khouya ◽  
Housseinou Ba ◽  
Walid Baaziz ◽  
Jean-Mario Nhut ◽  
Andrea Rossin ◽  
...  
Keyword(s):  
Carbon Black ◽  
Selective Hydrogenation ◽  
Black Powder ◽  
Carbon Black Powder ◽  
Powder Composites

Electrolytic synthesis of ZrSi/ZrC nanocomposites from ZrSiO4 and carbon black powder in molten salt

2020 ◽  
Vol 111 (7) ◽  
pp. 581-586
Author(s):  
Li Ming ◽  
Wu Xiufeng
Keyword(s):  
Electron Microscopy ◽  
High Temperature ◽  
Carbon Black ◽  
Molten Salt ◽  
Cell Voltage ◽  
Black Powder ◽  
X Ray ◽  
Carbon Black Powder ◽  
Transmission Electron ◽  
A Cell

Abstract ZrSi/ZrC nanocomposites have stable high-temperature properties, where conventional materials cannot meet increasingly demanding high-temperature environments. In this paper, the microstructure and electrochemical reduction mechanism of ZrSi/ZrC nanocomposites have been studied. A mixture of ZrSiO4 and carbon black powder was processed using ball grinding, sheet pressing, and sintering, and cylindrically-sintered sheet was prepared as the cathode for the electrolytic work. A high purity graphite rod was utilized as the anode.The microstructure of the electrolytic product was characterized and analyzed using X-ray diffraction, scanning electron microscopy equipped with energy-dispersive X-ray spectroscopy, and transmission electron microscopy. The experimental results showed that the diameter of the as-synthesized ZrSi/ ZrC fibers typically range between 100-400 nm when produced by the electrolysis of sintered pellets in equimolar CaCl2-NaCl molten salt at 850°C with a cell voltage of 2.8 V for 20 h under an argon atmosphere. The nanofibers were formed in core-shell microstructures that overlap and grow.

scholarly journals Measurement of Photon Buildup Factor for Samples of Iraqi Carbon Black Material

2016 ◽  
Vol 8 (2) ◽  
pp. 444-450
Author(s):  
Baghdad Science Journal
Keyword(s):  
Carbon Black ◽  
Experimental Results ◽  
Buildup Factor ◽  
Mixing Ratio ◽  
Black Powder ◽  
Mixing Ratios ◽  
Carbon Black Powder ◽  
Expected Values

The buildup factor was measured after irradiating Iraq carbon black powder using each of and sources respectively, using mixing ratios 40% & 50% for thickness range . The results showed that the buildup factor depends on energy and has limited dependence on the mixing ratio. The QIFT program succeeded accenting for the experimental results even for expected values more than 4 m.f.p outside the thickness range.

Enhanced electrical properties in 0–3 pyroelectric composites doped with nano carbon black powder

2014 ◽  
Vol 26 (1) ◽  
pp. 37-41 ◽  
Author(s):  
Yangyang Zhang ◽  
Erping Wang ◽  
Hui Li ◽  
Yanyan Cai ◽  
Jinping Zhang
Keyword(s):  
Electrical Properties ◽  
Carbon Black ◽  
Black Powder ◽  
Carbon Black Powder ◽  
Nano Carbon

4526881 Method of pretreating carbon black powder to improve cathode performance and lithium sulfuryl chloride cell including the pretreated carbon black powder

Carbon ◽  
1986 ◽  
Vol 24 (3) ◽  
pp. III
Author(s):  
Michael Binder ◽  
Charles Walker ◽  
Eric Petersen ◽  
William L Wade ◽  
Sol Gilman
Keyword(s):  
Carbon Black ◽  
Chloride Cell ◽  
Sulfuryl Chloride ◽  
Black Powder ◽  
Carbon Black Powder

The Study on Pyrolytic Carbon Powder in the Coating Process of Fuel Particle for High-Temperature Gas-Cooled Reactor

2010 ◽  
Author(s):  
Malin Liu ◽  
Bing Liu ◽  
Youlin Shao
Keyword(s):  
High Temperature ◽  
Carbon Black ◽  
Pyrolytic Carbon ◽  
Nano Particles ◽  
Carbon Powder ◽  
Fuel Particle ◽  
Coating Process ◽  
Black Powder ◽  
Carbon Black Powder ◽  
High Temperature Gas

The R&D of coating process of fuel particles is one of the most important key technologies in the research work of high-temperature gas-cooled reactor (HTGR). A safe and reliable coating process is expected and related to the prospect of large-scale utilization of nuclear energy. The related research of the carbon black powder which is the main byproduct generated in the coating process is important, because it relates to the impact of coating process on the surrounding environment and is also helpful to understand the deposit mechanism of PyC (pyrolytic carbon) layer coated on the fuel particle. In the present study, the microstructure of the pyrolytic carbon powder were systematically investigated by scanning electron microscope (SEM), transmission electron microscopy (TEM), laser Raman spectroscopy and particle size analysis (PSA). It can be found that the carbon powder in the cyclone separator is composed of the nano-spherical particles with the diameter of about 50nm. The ring-layered nano-structured carbon particles could be found from the electron micrographs. The comparison between Raman spectra of carbon powder and pyrolytic carbon coated on the fuel particle showed that the droplet deposit mechanism was suitable to explain the PyC deposition process. The nano-particles agglomerate into the irregular floc and the diameters of the stable particle clusters are mainly 1 μm and 10 μm. The disposal methods of carbon black powder are also discussed.

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