Production of carbon via Electrochemical conversion of CO2 in carbonate based Molten Salt

Miron Gakim, and lam Mun Khong, and Jidon Janaun, and Wiley Liew Yun Hsein, and Nancy Julius Siambun, (2015) Production of carbon via Electrochemical conversion of CO2 in carbonate based Molten Salt. Advanced Materials Research, 1115. pp. 361-365. ISSN 10226680

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Abstract

Carbon was successfully deposited on AISI 304 stainless steel rod cathode through electrolysis process in three molten salt mixtures, namely K2CO3-Li2CO3 (mole ratio: 1:1), CaCO3-Li2CO3-LiCl (mole ratio 0.09:0.28:0.63) and CaCO3-CaCl2-KCl-LiCl (mole ratio: 0.13:0.31:0.10:0.45), under CO2 atmospheres as continuous source of carbon. The process were carried out for 1 hour at temperature range 545–585°C and electrolysis voltage of 4.0V to drive the deposition of carbon through electrochemical conversion. EDX analysis on deposited products shown carbon as dominant element (89-98%). SEM revealed carbon with Flakes and grapes aggregation shapes for different salt mixtures. The achieved current efficiency of 83.8%, 80.46% and 92.41% were found in the respective salt mixtures, and energy consumption promotes several ways for efficiency improvement on the electrochemical conversion of CO2.

Item Type: Article
Uncontrolled Keywords: Carbon Deposition, Electrochemical Conversion, Molten Carbonates
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: FACULTY > Faculty of Engineering
Depositing User: Noraini
Date Deposited: 12 Mar 2018 03:12
Last Modified: 12 Mar 2018 03:12
URI: http://eprints.ums.edu.my/id/eprint/19231

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