Facile Synthesis of High-Surface-Area Mesoporous MgO with Excellent High-Temperature CO2 Adsorption Potential
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Hanif, Aamir
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CSIR, Acad Sci & Innovat Res, Indian Inst Petr Campus CSIR IIP, Dehra Dun 248005, Uttar Pradesh, IndiaCSIR, Acad Sci & Innovat Res, Indian Inst Petr Campus CSIR IIP, Dehra Dun 248005, Uttar Pradesh, India
Hanif, Aamir
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Dasgupta, Soumen
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机构:CSIR, Acad Sci & Innovat Res, Indian Inst Petr Campus CSIR IIP, Dehra Dun 248005, Uttar Pradesh, India
Dasgupta, Soumen
Nanoti, Anshu
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机构:CSIR, Acad Sci & Innovat Res, Indian Inst Petr Campus CSIR IIP, Dehra Dun 248005, Uttar Pradesh, India
Nanoti, Anshu
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[1] CSIR, Acad Sci & Innovat Res, Indian Inst Petr Campus CSIR IIP, Dehra Dun 248005, Uttar Pradesh, India
Mesoporous magnesium oxide of high surface area (>350 m(2)/g) has been synthesized by a simple ammonia precipitation method from an aqueous magnesium nitrate solution. This material has been evaluated for CO2 adsorption in the temperature and pressure regimes relevant to precombustion capture in an integrated gasification combined cycle scheme. CO2 adsorption capacities were also compared with those of magnesium oxides obtained by other synthetic routes such as hydrothermal urea hydrolysis and direct thermal degradation of magnesium nitrate. Mesoporous magnesium oxide shows a CO2 capacity at high temperatures that is comparable or even exceeds the capacity values for this class of high-temperature CO2 adsorbents reported in the literature so far. The materials studied have been characterized by various characterization techniques like powder X-ray diffraction, surface area, pore-size distribution analysis, scanning electron microscopy, and Fourier transform infrared. A cyclic adsorption/desorption study was also carried out to understand the multicycle stability of the adsorbent for high-temperature CO2 capacity.
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Toshiba Co Ltd, Ctr Corp Res & Dev, Power Supply Mat & Devices Lab, Saiwai Ku, Kawasaki, Kanagawa 2128582, JapanToshiba Co Ltd, Ctr Corp Res & Dev, Power Supply Mat & Devices Lab, Saiwai Ku, Kawasaki, Kanagawa 2128582, Japan
Kato, M
Nakagawa, K
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Toshiba Co Ltd, Ctr Corp Res & Dev, Power Supply Mat & Devices Lab, Saiwai Ku, Kawasaki, Kanagawa 2128582, JapanToshiba Co Ltd, Ctr Corp Res & Dev, Power Supply Mat & Devices Lab, Saiwai Ku, Kawasaki, Kanagawa 2128582, Japan
机构:
Toshiba Co Ltd, Ctr Corp Res & Dev, Power Supply Mat & Devices Lab, Saiwai Ku, Kawasaki, Kanagawa 2128582, JapanToshiba Co Ltd, Ctr Corp Res & Dev, Power Supply Mat & Devices Lab, Saiwai Ku, Kawasaki, Kanagawa 2128582, Japan
Kato, M
Nakagawa, K
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Toshiba Co Ltd, Ctr Corp Res & Dev, Power Supply Mat & Devices Lab, Saiwai Ku, Kawasaki, Kanagawa 2128582, JapanToshiba Co Ltd, Ctr Corp Res & Dev, Power Supply Mat & Devices Lab, Saiwai Ku, Kawasaki, Kanagawa 2128582, Japan