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RAJANGAMVINODH,Aziz Abidov,Muthiah Pillai Palanichamy,차왕석,장현태 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.65 No.-
Herein, we report a solid matrix of amino alkyl siloxane of porous nature with alkyl groups thoroughly distributed in the matrix by constrained growth technique; this sorbent is ideal for CO2 sorption. The sorbent exhibits higher sorption (4 mmol CO2/g), and selectivity to CO2. It is enriched with voids, and exhibits adequate thermal stability. Adsorption occurred below 100 °C, while desorption occurred between 100 and 200 °C. When the sorbent underwent both sorption and desorption of CO2, a sharp enthalpy change was observed; such an enthalpy change is a crucial characteristic of cyclic sorption desorption (CSD).
RAJANGAMVINODH,장현태,Aziz Abidov,Mei Mei Peng,CADIAM MOHAN BABU,Muthiah Pillai Palanichamy,차왕석 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.32 No.-
In this paper we report a semiconducting porous carbon material for supercapacitor application. Semiconducting carbon material was prepared by two step method. First, hypercross-linked polymers(HCPs) of phloroglucinol and a,a0-dichloro-p-xylene was prepared by a simple Friedel Crafts alkylation,and second, the synthesized microporous HCPs was subjected into carbonization at 700 8C in a heliumatmosphere. The carbonized sample was characterized into cyclic voltammetry, galvanostatic charge–discharge and electrochemical impedance spectroscopy in 1 M sodium sulphate aqueous solution forsupercapacitor applications. The specific capacitance of carbonized materials is found to be 86 F g 1 at acurrent density of 0.1 A g 1.
Hypercross-linked lignite for NOx and CO2 sorption
RAJANGAMVINODH,김대경,Mani Ganesh,Mei Mei Peng,Aziz Abidov,N. Krishnamurthy,Muthiah Pillai Palanichamy,차왕석,장현태 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.23 No.-
We are reporting for first time, hypercross-linking of lignite for the sorption of NOx and CO2. Hypercross- linking was carried out with dimethoxy methane. The CO2 sorption capacity of hypercross-linked lignite coal was approximately three fold higher than the virgin coal at 313 K and 1 atm. 29 wt% of NOx adsorption was observed at 298 K and 1 atm. Both the lignite and its hypercross-linked forms were characterized by Fourier transform infra red (FTIR), diffuse reflectance ultra violet–vis (DRS UV–vis) spectroscopy, thermogravimetric analysis (TGA), scanning electron microscopy (SEM), Brunauer Emmet Teller (BET) adsorption isotherm and x-ray diffraction (XRD) studies.
RAJANGAMVINODH,정의민,Mani Ganesh,Mei Mei Peng,Aziz Abidov,Muthiah Pillai Palanichamy,차왕석,장현태 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.21 No.1
We synthesized highly porous hypercross-linked polymers of (4, 40-bis ((chloromethyl)-1, 10-biphenylbenzylchloride)) [designated as HCP-BCMB] and (1, 3, 5-triphenyl benzene-1, 4-bis (chloromethyl)benzene) [designated as HCP-TPB] as sorbents for the removal of volatile organic compounds such aschloroform, toluene and ethyl methyl ketone under humidified conditions. The micro-porous nature ofthe hypercross-linked polymers (pore diameter 0.8 nm) was confirmed by Brunner–Emmet–Teller (BET)and scanning electron microscopy (SEM) techniques. HCP-TPB showed a maximum adsorption of 32.8wt% for toluene. In addition, both the HCPs exhibited CO2 adsorption close to 6 wt% at 25 8C and 1 atm.