Temperature Programmed Desorption of Carbon Dioxide for Activated Carbon Supported Nickel Oxide: The Adsorption and Desorption Studies

Abstract:

The priority of success in practical CO₂ capture with solid sorbents is dependent on the development of a low cost sorbent and energy consumption for regeneration with high adsorption capacity. In this work, different loading of NiO were evaluated as a potential source of basic sites for CO₂ capture, and activated carbon (AC) was used as a preliminary support in order to study the effect of the impregnation. The NiO loading increased the basicity of the adsorbent significantly enhance the CO₂ chemisorption. Nonetheless, it drastically reduced the surface area of the AC, which is chiefly responsible for CO₂ physisorption, thus decreasing the carrying capacity of ACs at room temperature and pressure.

• Periodical: Advanced Materials Research (Volume 1087)
• Pages: 45-49
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1087.45
• Online since: February 2015
• Authors: Azizul Hakim*, Wan Nor Roslam Wan Isahak, Maratun Najiha Abu Tahari, Muhammad Rahimi Yusop, Mohamed Wahab Mohamed Hisham, Mohd Ambar Yarmo
• Keywords: Activated Carbon, Adsorption, Carbon Dioxide, Nickel Oxide (NiO)

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