Catalytic Decomposition of Pyrolysis Fuel Oil over in Situ Carbon-Coated Ferrierite Zeolite for Selective Hydrogen Production

2018 ◽  
Vol 32 (3) ◽  
pp. 3792-3799 ◽  
Author(s):  
Jihyeon Kim ◽  
Gui-Young Han ◽  
Jaeyeong Park ◽  
Jong-Wook Bae
Keyword(s):  
Hydrogen Production ◽  
Catalytic Decomposition ◽  
Fuel Oil ◽  
Pyrolysis Fuel Oil ◽  
Carbon Coated

scholarly journals In Situ Generated Nanosized Sulfide Ni-W Catalysts Based on Zeolite for the Hydrocracking of the Pyrolysis Fuel Oil into the BTX Fraction

Catalysts ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1152
Author(s):  
Tatiana Kuchinskaya ◽  
Mariia Kniazeva ◽  
Vadim Samoilov ◽  
Anton Maximov
Keyword(s):  
Photoelectron Spectroscopy ◽  
Active Phase ◽  
Fuel Oil ◽  
Oil Fraction ◽  
Transmission Electron ◽  
Catalytically Active ◽  
Pyrolysis Fuel Oil ◽  
Benzene Toluene ◽  
Catalytic Reactivity

The hydrocracking reaction of a pyrolysis fuel oil fraction using in situ generated nano-sized NiWS-sulfide catalysts is studied. The obtained catalysts were defined using X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). The features of catalytically active phase generation, as well as its structure and morphology were considered. The catalytic reactivity of in situ generated catalysts was evaluated using the hydrocracking reaction of pyrolysis fuel oil to obtain a light fraction to be used as a feedstock for benzene, toluene, and xylene (BTX) production. It was demonstrated that the temperature of 380 °C, pressure of 5 MPa, and catalyst-to-feedstock ratio of 4% provide for a target fraction (IPB −180 °C) yield of 44 wt %, and the BTX yield of reaching 15 wt %.

scholarly journals Rapid mechanochemical synthesis of polyanionic cathode with improved electrochemical performance for Na-ion batteries

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xing Shen ◽  
Quan Zhou ◽  
Miao Han ◽  
Xingguo Qi ◽  
Bo Li ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrochemical Performance ◽  
Mechanochemical Synthesis ◽  
Cathode Materials ◽  
Industrial Application ◽  
Synthesis Process ◽  
In Situ Fabrication ◽  
Stationary Energy ◽  
Carbon Coated

AbstractNa-ion batteries have been considered promising candidates for stationary energy storage. However, their wide application is hindered by issues such as high cost and insufficient electrochemical performance, particularly for cathode materials. Here, we report a solvent-free mechanochemical protocol for the in-situ fabrication of sodium vanadium fluorophosphates. Benefiting from the nano-crystallization features and extra Na-storage sites achieved in the synthesis process, the as-prepared carbon-coated Na3(VOPO4)2F nanocomposite exhibits capacity of 142 mAh g−1 at 0.1C, higher than its theoretical capacity (130 mAh g−1). Moreover, a scaled synthesis with 2 kg of product was conducted and 26650-prototype cells were demonstrated to proof the electrochemical performance. We expect our findings to mark an important step in the industrial application of sodium vanadium fluorophosphates for Na-ion batteries.

scholarly journals A Process for Hydrogen Production from the Catalytic Decomposition of Formic Acid over Iridium—Palladium Nanoparticles

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3258
Author(s):  
Hamed M. Alshammari ◽  
Mohammad Hayal Alotaibi ◽  
Obaid F. Aldosari ◽  
Abdulellah S. Alsolami ◽  
Nuha A. Alotaibi ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Formic Acid ◽  
Activated Charcoal ◽  
Palladium Nanoparticles ◽  
Room Temperature ◽  
Catalytic Decomposition ◽  
Conversion Yield ◽  
Production Of Hydrogen ◽  
Commercial Applications

The present study investigates a process for the selective production of hydrogen from the catalytic decomposition of formic acid in the presence of iridium and iridium–palladium nanoparticles under various conditions. It was found that a loading of 1 wt.% of 2% palladium in the presence of 1% iridium over activated charcoal led to a 43% conversion of formic acid to hydrogen at room temperature after 4 h. Increasing the temperature to 60 °C led to further decomposition and an improvement in conversion yield to 63%. Dilution of formic acid from 0.5 to 0.2 M improved the decomposition, reaching conversion to 81%. The reported process could potentially be used in commercial applications.

In Situ Synthesis and Properties of Carbon-Coated LiFePO[sub 4] as Li-Ion Battery Cathodes

2005 ◽  
Vol 152 (3) ◽  
pp. A483 ◽  
Author(s):  
C. H. Mi ◽  
X. B. Zhao ◽  
G. S. Cao ◽  
J. P. Tu
Keyword(s):  
In Situ Synthesis ◽  
Li Ion Battery ◽  
Carbon Coated ◽  
Li Ion

Surface Passivation of Bare Aluminum Nanoparticles using Perfluoroalkyl Carboxylic Acids

2003 ◽  
Vol 800 ◽  
Author(s):  
R. Jason Jouet ◽  
Andrea D. Warren ◽  
David M. Rosenberg ◽  
Victor J. Bellitto
Keyword(s):  
Composite Material ◽  
Surface Passivation ◽  
Catalytic Decomposition ◽  
Self Assembled Monolayers ◽  
Aluminum Nanoparticles ◽  
Wet Chemistry ◽  
Al Nanoparticles ◽  
Polar Organic Solvents ◽  
Assembled Monolayers

AbstractSurface passivation of unpassivated Al nanoparticles has been realized using self assembled monolayers (SAMs). Nanoscale Al particles were prepared in solution by catalytic decomposition of H3Al•NMe3 or H3Al•N(Me)Pyr by Ti(OiPr)4 and coated in situ using a perfluoroalkyl carboxylic acid SAM. Because the Al particles are prepared using wet chemistry techniques and coated in solution, they are free of oxygen passivation. This SAM coating passivates the aluminum and seems to prevent the oxidation of the particles in air and renders the composite material, to some extent, soluble in polar organic solvents such as diethyl ether. Characterization data including SEM, TEM, TGA, and ATR-FTIR of prepared materials is presented.

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