a State Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200072, China;
b Shanghai Key Laboratory of Advanced Ferrometallurgy, School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
摘要 A series of xNiAl2O4/γ-Al2O3 composites with various Ni contents have been prepared via one-step partial hydrolysis of metal nitrate salts in the absence of surfactants and used for carbon dioxide reforming of methane. The characterization results demonstrated that the NiAl2O4/γ-Al2O3 materials possessed mesoporous structures of uniform pore sizes; and the Ni2+ ions were completely reacted with alumina to NiAl2O4 spinel in the matrices using N2 sorption, XRD, TEM, and XPS. The NiAl2O4/γ-Al2O3 materials exhibited excellent catalytic properties and superior long-term stability for carbon dioxide reforming of methane. The effects of Ni content on the intrinsic activities and the amounts of coke disposition of the xNiAl2O4/γ-Al2O3 catalysts were discussed in detail for the carbon dioxide reforming of methane. The results revealed that the Ni particle sizes did not affect the intrinsic activity of metallic Ni, but smaller Ni particles could reduce the rate of coke deposition.
This work was supported by Innovation Program of Shanghai Municipal Education Commission, the Major State Basic Research Development Program of China (No. 2014CB643403), the National Science Fund for Distinguished Young Scholars (No. 51225401, 51574164) and the Basic Major Research Program of Science and Technology Commission Foundation of Shanghai (No. 14JC1491400).
通讯作者 Xueguang Wang, Xionggang Lu
.Carbon dioxide reforming of methane over mesoporous nickel aluminate/γ-alumina composites[J]
, 2017,V26(1): 93-100
.Carbon dioxide reforming of methane over mesoporous nickel aluminate/γ-alumina composites[J] Journal of Energy Chemistry, 2017,V26(1): 93-100
K. Wang, X.J. Li, S.F. Ji, B.Y. Huang, C.Y. Li, ChemSusChem 1(2008) 527-533.
T. Odedairo, J.L. Chen, Z.H. Zhu, J. Phys. Chem. C 117(2013) 21288-21302.
S. Das, S. Thakur, A. Bag, M.S. Gupta, P. Mondal, A. Bordoloi, J. Catal. 330(2015) 46-60.
W. Chen, G.F. Zhao, Q.X. Xue, L. Chen, Y. Lu, Appl. Catal. B 136-137(2013) 260-268.
W. Chen, W.Q. Sheng, F.H. Cao, Y. Lu, Int. J. Hydrogen Energy 37(2012) 18021-18030.
W. Chen, W.Q. Sheng, G.F. Zhao, F.H. Cao, Q.S. Xue, L. Chen, Y. Lu, RSC Adv 2(2012) 3651-3653.
J. Kehres, J.G. Jakobsen, J.W. Andreasen, J.B. Wagner, H.H. Liu, A. Molenbroek, J. Sehested, I. Chorkendorff, T. Vegge, J. Phys. Chem. C 116(2012) 21407-21415.
G. Jones, J.G. Jakobsen, S.S. Shim, J. Kleis, M.P. Andersson, J. Rossmeisl, F. Abild-Pedersen, T. Bligaard, S. Helveg, B. Hinnenmann, J.R. Rostrup-Nielsen, I. Chorkendorff, J. Sehested, J.K. Norskov, J. Catal. 259(2008) 147-160.
V.C.H. Kroll, H.M. Swaan, C. Mirodatos, J. Catal. 161(1996) 409-422.
M.J. Yu, Y.A. Zhu, Y. Lu, G.S. Tong, K.K. Zhu, X.G. Zhou, Appl. Catal. B 165(2015) 43-56.