High specific surface area

The aim of the work "Activated carbon derived from rice husk by NaOH activation and its application in supercapacitor" is to prepare a low-cost, high specific surface area activated carbon with microporous and mesoporous ranges using rice husk as the raw material. The effects of activation temperature on the specific surface area, pore structure, morphology and thermal stability of the AC samples have been examined. The AC samples were proved to be excellent electrode material for supercapacitor, hence solve the disposal and pollution problems of rice husk.

9p runordie3 27-06-2022 12 3   Download

This technique allows saving Portland cement without reducing significantly the concrete strength. The ability to obtain ultra-fine mineral fillers from industrial by-products with high specific surface area appears with grinding technology development.

7p lucastanguyen 01-06-2020 22 1   Download

The catalyst 7.5% NiO/TiO2 and seven samples of NiO/γ-Al2O3 with NiO content from 7.5% to 60% have been obtained and studied. Physico-chemical characteristics of the catalysts were determined by methods of Adsorption (BET), X-ray Diffraction (XRD), TemperatureProgrammed Reduction (TPR) and Hydrogen Pulse Titration. The catalytic properties of the obtained samples were investigated in the reaction of CO methanation at temperatures 180 – 220◦C and mole ratios hydrogen/carbon monoxide 25-100.

16p 12120609 01-06-2020 6 1   Download

Oxidation of benzyl alcohol plays an important role in organic synthesis for the purpose of producing benzandehyde - a valuable chemical intermediates. MCM-41 is an important member of M41S mesoporous materials family. It is proved to be very potential for being used as support materials due to its high specific surface area, thermal-hydrothermal stability, etc.

5p uocvong03 24-09-2015 95 6   Download

A series of ground La(Co,Cu)O3 perovskite-type mixed oxides prepared by reactive grinding has been characterized by X-Ray diffraction (XRD), BET, H2-TPR, O2-TPD, and CO disproportionation. All ground samples show a rather high specific surface area and nanometric particles. The solids were pretreated under H2 atmosphere to provide a finely dispersed Co-Cu phase which is active for the hydrogenation of CO.

11p tuanlocmuido 13-12-2012 40 2   Download

Abstract. A series of ground La(Co,Cu)O3 perovskite-type mixed oxides prepared by reactive grinding has been characterized by X-Ray diffraction (XRD), BET, H2-TPR, O2-TPD, and CO disproportionation. All ground samples show a rather high specific surface area and nanometric particles.

11p lubo01 04-10-2011 72 7   Download