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Adsorption characteristic study of activated carbons down to 4.5 k

Mishra, J and Agarwal, J and Kasthurirengan, S and Mukherjee, S and Nayak, P and Panchal, P and Gangradey, R (2018) Adsorption characteristic study of activated carbons down to 4.5 k. In: 7th International Conference of Materials Processing and Characterization, ICMPC 2017, 17 - 19 March 2017, Hyderabad, Andhra Pradesh, pp. 3425-3431.

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Official URL: https://dpoi.org/10.1016/j.matpr.2017.11.588


Adsorption characteristic study of different activated carbon samples are performed at low temperature down to 5 K by using cryocooler based low temperature facility with a micropore analyzer. This facility is now operational at Institute for plasma research (IPR). It comprises of a commercial micro pore analyzer for sample characterization at 77 K and a GM cryocooler cooling unit forholding the sample at any temperature < 77 K. The sample holder is connected to the micro-pore analyzer measurement unit through a small diameter tube for gas dosing and equilibrium pressure measurement. A PID control based temperature controller unit along with temperature sensors and heatersare used to regulate and maintain the temperature of the sample cell at any temperature between 4.5 K and 77 K. Among different kinds ofactivated carbon samples studied, the surface area and pore width for carbon cloths are found to be 3438 m2/gm (at 4.5 K), and it increases with lowering the temperature down to 4.5 K from 77.0 K.

Item Type: Conference Paper
Publication: Materials Today: Proceedings
Publisher: Elsevier Ltd
Additional Information: The copyright for this article belongs to the Elsevier Ltd.
Keywords: Activated carbon; Adsorption isotherm; Cryocooler; Fusion and cryopumping; Micropore analyser
Department/Centre: Division of Physical & Mathematical Sciences > Centre for Cryogenic Technology
Date Deposited: 26 Aug 2022 06:32
Last Modified: 26 Aug 2022 06:32
URI: https://eprints.iisc.ac.in/id/eprint/76086

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