NiO/Ce1−xNixO2−δ as an alternative to noble metal catalysts for CO oxidation

作者: Sk. Mahammadunnisa , P. Manoj Kumar Reddy , N. Lingaiah , Ch. Subrahmanyam

DOI: 10.1039/C2CY20641B

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摘要: A series of NiO/CeO2 catalysts were prepared by using the combustion method and characterized XRD, N2-physisorption, TEM, UV-visible, Raman, XPS, ICP-OES H2-TPR. Typical results indicated had a better performance than CeO2 for CO oxidation 15 wt% is active stable, whereas with higher NiO content 20 30 deactivated at 130 °C onwards. The high activity excellent stability 15% can be ascribed to their oxygen vacancy, dispersion strong metal–support interaction that leads synergy between CeO2.

参考文章(45)
H YAO, Ceria in automotive exhaust catalysts I. Oxygen storage Journal of Catalysis. ,vol. 86, pp. 254- 265 ,(1984) , 10.1016/0021-9517(84)90371-3
J.P. Holgado, G. Munuera, XPS/TPR study of the reducibility of M/CeO2 catalysts (M=Pt, Rh): Does junction effect theory apply? Studies in Surface Science and Catalysis. ,vol. 96, pp. 109- 122 ,(1995) , 10.1016/S0167-2991(06)81423-0
Igor Kosacki, Toshio Suzuki, Harlan U. Anderson, Philippe Colomban, RAMAN SCATTERING AND LATTICE DEFECTS IN NANOCRYSTALLINE CEO2 THIN FILMS Solid State Ionics. ,vol. 149, pp. 99- 105 ,(2002) , 10.1016/S0167-2738(02)00104-2
Ruixing Li, Shinryo Yabe, Mika Yamashita, Shigeyosi Momose, Sakae Yoshida, Shu Yin, Tsugio Sato, UV-shielding properties of zinc oxide-doped ceria fine powders derived via soft solution chemical routes Materials Chemistry and Physics. ,vol. 75, pp. 39- 44 ,(2002) , 10.1016/S0254-0584(02)00027-5
Biswajit Choudhury, Amarjyoti Choudhury, Ce3+ and oxygen vacancy mediated tuning of structural and optical properties of CeO2 nanoparticles Materials Chemistry and Physics. ,vol. 131, pp. 666- 671 ,(2012) , 10.1016/J.MATCHEMPHYS.2011.10.032
F. Ocampo, J.A. Cunha, M.R. de Lima Santos, J.P. Tessonnier, M.M. Pereira, B. Louis, Synthesis of zeolite crystals with unusual morphology: Application in acid catalysis Applied Catalysis A-general. ,vol. 390, pp. 102- 109 ,(2010) , 10.1016/J.APCATA.2010.09.037
Tianyang Li, Guolei Xiang, Jing Zhuang, Xun Wang, Enhanced catalytic performance of assembled ceria necklace nanowires by Ni doping Chemical Communications. ,vol. 47, pp. 6060- 6062 ,(2011) , 10.1039/C1CC11547B
Jifei Jia, Junko N. Kondo, Kazunari Domen, Kenzi Tamaru, Infrared Study of CO Adsorption and Oxidation over Au/Al2O3 Catalyst at 150 K Journal of Physical Chemistry B. ,vol. 105, pp. 3017- 3022 ,(2001) , 10.1021/JP003112L
Fabien Ocampo, Benoit Louis, Anne-Cécile Roger, Methanation of carbon dioxide over nickel-based Ce0.72Zr0.28O2 mixed oxide catalysts prepared by sol–gel method Applied Catalysis A-general. ,vol. 369, pp. 90- 96 ,(2009) , 10.1016/J.APCATA.2009.09.005
María Martha Barroso-Quiroga, Adolfo Eduardo Castro-Luna, Catalytic activity and effect of modifiers on Ni-based catalysts for the dry reforming of methane International Journal of Hydrogen Energy. ,vol. 35, pp. 6052- 6056 ,(2010) , 10.1016/J.IJHYDENE.2009.12.073