화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.20, No.5, 829-834, September, 2003
DOI10.1007/BF02697283  Export Citation
Characterization of a Nickel-Strontium Phosphate Catalyst for Partial Oxidation of Methane
Jin Hyuk Jun, Sang Jin Lee, Seung-Hwan Lee, Tae-Jin Lee1, Sang Jun Kong2, Tae Hoon Lim2, Suk-Woo Nam2, Seong-Ahn Hong2, and Ki June Yoon†
  • Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Korea
  • 1School of Chemical Engineering & Technology, Yeungnam University, Kyongsan 712-749, Korea
  • 2Battery and Fuel Cell Research Center, Korea Institute of Science and Technology, Seoul 136-791, Korea
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A nickel-strontium phosphate catalyst was recently reported to exhibit high activity and selectivity in partial oxidation of methane (POM). Further characterizations have been performed in the present work in order to better understand the characteristics of this catalyst. TEM showed that very fine nickel particles of a few nanometers of the size were present in the needle shape in the sample after the reaction. TPR showed the presence of three nickel species, confirming that the nickel in the strontium hydroxyapatite and phosphate structures comes out as fine particles and is reduced during the reaction. As the calcination time during the preparation increased, the total re-oxidation temperature became higher. This is considered due to larger crystallite size owing to the longer calcination, which results in a smaller amount of nickel coming out of the matrix to the surface.
Keywords:Calcination;Nickel;Partial Oxidation of Methane;Strontium Nickel Hydroxyapatite;Strontium Nickel Phosphate
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