Optimized preparation for large surface area activated carbon from date (Phoenix dactylifera L.) stone biomass

2014 ◽  
Vol 61 ◽  
pp. 167-178 ◽  
Author(s):  
Mohammed Danish ◽  
Rokiah Hashim ◽  
M.N. Mohamad Ibrahim ◽  
Othman Sulaiman
2017 ◽  
Vol 139 ◽  
pp. 280-290 ◽  
Author(s):  
Mohammed Danish ◽  
Waheed Ahmad Khanday ◽  
Rokiah Hashim ◽  
Nurul Syuhada Binti Sulaiman ◽  
Mohammad Nishat Akhtar ◽  
...  

Polymers ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1276 ◽  
Author(s):  
Castro ◽  
Nobre ◽  
Napoli ◽  
Bianchi ◽  
Moulin ◽  
...  

This paper provides proof of concept that activated carbon (AC) may be readily produced using limited conversion methods and resources from sawdust of massaranduba (Manilkara huberi) wood, thereby obtaining value-added products. Sawdust was sieved and heat-treated in an oxygen-free muffle furnace at 500 °C to produce charcoal. The charcoal was activated in a tubular electric furnace at 850 °C while being purged with CO2 gas. Microstructural, thermal and physical properties of the three components: sawdust, charcoal and AC were compared by means of field emission scanning electron microscopy (FESEM), X-ray diffractometry (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), density and water adsorption/desorption measurements. The resulting AC had a large surface area as measured by Brunauer-Emmett-Teller (BET) comparable to other such values found in the literature. The large surface area was due to pore development at the microstructural level as shown by FESEM. XRD illustrated that sawdust had a semi-crystalline structure whereas charcoal and AC evidenced mostly amorphous structures. TGA and DSC showed that AC had high reactivity to moisture compared to sawdust and charcoal.


Fuel ◽  
2000 ◽  
Vol 79 (14) ◽  
pp. 1713-1723 ◽  
Author(s):  
I Mochida ◽  
N Shirahama ◽  
S Kawano ◽  
Y Korai ◽  
A Yasutake ◽  
...  

2017 ◽  
Vol 7 (1) ◽  
pp. 45 ◽  
Author(s):  
Alfiatur Rahmah ◽  
Ahmad Zainollah ◽  
Novi Artika Fitriani ◽  
Dwi Sapri Ramadhan ◽  
Maf'ud Cahayo ◽  
...  

<p>The objective of this research is to observe the influence of surface area and porosity of banana peels activated carbon on the specific capacitance value as EDLC type supercapacitor electrode. Banana peels have been carbonated at temperature of 600ºC and activated using KOH with concentrations of 5%, 15%, 25% and 35% at temperature of 700ºC. The activated carbon banana peels mixed with PVAc (Polyvinyl acetat), added with aquades and compressed on pressure of 80 kN. The specific capacitance has been carried out using galvanostatic method with KOH 30% as electrolyte solution. Pore size of membrane activated carbon was observed using Scanning Electron Microscopy (SEM) and Brunnuaer-Emmet-Teller (BET) method for surface area of activated carbon. The result shows that the optimum value at activation using KOH 25% with large surface area 540,454 m<sup>2</sup>/g, porosity 17,89 µm and specific capacitances of 72,93 F/g. The increase of large surface area and porosity activated carbon has affected to specific capacitance value, so activated carbon of banana peels potentials as electrode material supercapacitor  EDLC type.</p><p> </p><p><strong>Keyword:</strong> activated carbon; porosity; specific capacitance; and supercapacitor electrode.</p>


Fuel ◽  
2019 ◽  
Vol 239 ◽  
pp. 830-840 ◽  
Author(s):  
Xue-Lei Duan ◽  
Chun-Gang Yuan ◽  
Tian-Tian Jing ◽  
Xiao-Dong Yuan

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