Study of CO2 gasification of activated carbon catalysed by molybdenum oxide and potassium carbonate

Fuel ◽  
1986 ◽  
Vol 65 (10) ◽  
pp. 1400-1403 ◽  
Author(s):  
Isabel F. Silva ◽  
Luís S. Lobo
Keyword(s):  
Activated Carbon ◽  
Molybdenum Oxide ◽  
Potassium Carbonate ◽  
Co2 Gasification

Kinetics of the potassium carbonate-catalysed CO2 gasification of activated carbon

Fuel ◽  
1983 ◽  
Vol 62 (2) ◽  
pp. 221-225 ◽  
Author(s):  
Freek Kapteijn ◽  
Jacob A. Moulijn
Keyword(s):  
Activated Carbon ◽  
Potassium Carbonate ◽  
Co2 Gasification ◽  
Kinetics Of

Activated Carbon by Potassium Carbonate Activation from Pine Sawdust ( Pinus montezumae Lamb.)

2020 ◽  
Vol 43 (9) ◽  
pp. 1716-1725
Author(s):  
Francisco Márquez-Montesino ◽  
Neil Torres-Figueredo ◽  
Adela Lemus-Santana ◽  
Fernando Trejo
Keyword(s):  
Activated Carbon ◽  
Potassium Carbonate ◽  
Pine Sawdust ◽  
Pinus Montezumae

CO2 gasification of activated carbon catalyzed by earth alkaline elements

AIChE Journal ◽  
1986 ◽  
Vol 32 (4) ◽  
pp. 691-695 ◽  
Author(s):  
Freek Kapteijn ◽  
Hans Porre ◽  
J. A. Moulijn
Keyword(s):  
Activated Carbon ◽  
Co2 Gasification

Effect of component content variation on composition and structure of activated carbon in PVDF:K2CO3

2019 ◽  
Vol 21 (5) ◽  
pp. 2382-2388
Author(s):  
Wenliang Zhu ◽  
Kohei Okada ◽  
Zhong Li ◽  
Jiliang Zhu ◽  
Elia Marin ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Dielectric Constant ◽  
Activated Carbon ◽  
Potassium Carbonate ◽  
Polyvinylidene Fluoride ◽  
High Dielectric Constant ◽  
Content Variation ◽  
Composition And Structure ◽  
Component Content ◽  
High Dielectric

Percolative composites consisting of potassium carbonate dispersed in polyvinylidene fluoride (PVDF) polymeric matrix have shown high dielectric constant and electrical conductivity due to the formation of chemically activated carbon interfaces in the composite.

Selectivity of hydrogenation in an alkyne-alkene system on palladium catalysts modified with inorganic salts

1984 ◽  
Vol 49 (3) ◽  
pp. 592-596 ◽  
Author(s):  
Libor Červený ◽  
Nguyen Thi Thanh ◽  
Vlastimil Růžička
Keyword(s):  
Activated Carbon ◽  
Calcium Carbonate ◽  
Potassium Chloride ◽  
Ammonium Chloride ◽  
Potassium Carbonate ◽  
Catalytic Hydrogenation ◽  
Palladium Catalysts ◽  
Inorganic Salts

The competitive catalytic hydrogenation of 2-octyne and 1-heptene in methanol has been studied on catalysts 3% Pd on activated carbon and Pd black, modified with ammonium chloride, potassium chloride, potassium carbonate, or calcium carbonate. The rates of hydrogenation of the two substrates and the rate of isomerization of 1-heptene have been determined. The effect of inorganic salts on the activity and selectivity of the catalysts is discussed.

Preparation of Activated Carbon of Lignin from Straw Pulping by Chemical Activation Using Potassium Carbonate

2011 ◽  
Vol 704-705 ◽  
pp. 517-522 ◽  
Author(s):  
Xiao Juan Jin ◽  
Zhi Ming Yu ◽  
Gao Jiang Yan ◽  
Wu Yu
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Iodine Number ◽  
Surface Area ◽  
Potassium Carbonate ◽  
Activated Carbons ◽  
Chemical Activation ◽  
Bet Surface Area ◽  
Chemical Agent ◽  
Optimum Conditions

Activated carbons were prepared through chemical activation of lignin from straw pulping precursor using potassium carbonate as the chemical agent. Effects of activated temperature, K2CO3/lignin ratio and the activated time on the yield, Iodine number of activated carbon were investigated. Experimental results indicated that the optimum conditions were as follow: activated temperature 800°C, K3CO3(40% concentration) /lignin ratio 5: l, activated time 50min. These conditions allowed us to obtain a BET surface area of 1104 m2/g, including the external or non-microporous surface of 417 m2/g，Amount of methylene blue adsorption, Iodine number and the yield of activated carbon prepared under optimum conditions were 10.6mL/0.lg,1310 mg/g and 19.75%, respectively.

scholarly journals Enhanced Electrochemical Behavior of Peanut-Shell Activated Carbon/Molybdenum Oxide/Molybdenum Carbide Ternary Composites

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1056
Author(s):  
Ndeye F. Sylla ◽  
Samba Sarr ◽  
Ndeye M. Ndiaye ◽  
Bridget K. Mutuma ◽  
Astou Seck ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Molybdenum Oxide ◽  
Specific Energy ◽  
Porous Carbon ◽  
Molybdenum Carbide ◽  
Electrode Materials ◽  
Specific Power ◽  
Peanut Shell ◽  
Symmetric Supercapacitor

Biomass-waste activated carbon/molybdenum oxide/molybdenum carbide ternary composites are prepared using a facile in-situ pyrolysis process in argon ambient with varying mass ratios of ammonium molybdate tetrahydrate to porous peanut shell activated carbon (PAC). The formation of MoO2 and Mo2C nanostructures embedded in the porous carbon framework is confirmed by extensive structural characterization and elemental mapping analysis. The best composite when used as electrodes in a symmetric supercapacitor (PAC/MoO2/Mo2C-1//PAC/MoO2/Mo2C-1) exhibited a good cell capacitance of 115 F g−1 with an associated high specific energy of 51.8 W h kg−1, as well as a specific power of 0.9 kW kg−1 at a cell voltage of 1.8 V at 1 A g−1. Increasing the specific current to 20 A g−1 still showcased a device capable of delivering up to 30 W h kg−1 specific energy and 18 kW kg−1 of specific power. Additionally, with a great cycling stability, a 99.8% coulombic efficiency and capacitance retention of ~83% were recorded for over 25,000 galvanostatic charge-discharge cycles at 10 A g−1. The voltage holding test after a 160 h floating time resulted in increase of the specific capacitance from 74.7 to 90 F g−1 at 10 A g−1 for this storage device. The remarkable electrochemical performance is based on the synergistic effect of metal oxide/metal carbide (MoO2/Mo2C) with the interconnected porous carbon. The PAC/MoO2/Mo2C ternary composites highlight promising Mo-based electrode materials suitable for high-performance energy storage. Explicitly, this work also demonstrates a simple and sustainable approach to enhance the electrochemical performance of porous carbon materials.

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