TY - JOUR
T1 - Effect of aluminum modification on catalytic properties of PtSn-based catalysts supported on SBA-15 for propane dehydrogenation
AU - Duan, Yongzheng
AU - Zhou, Yuming
AU - Zhang, Yiwei
AU - Sheng, Xiaoli
AU - Zhou, Shijian
AU - Zhang, Zewu
PY - 2012/3
Y1 - 2012/3
N2 - The catalytic properties of PtSn-based catalysts supported on siliceous SBA-15 and Al-modified SBA-15, such as Al-incorporated SBA-15 (A1SBA-15) and alumina-modified SBA-15 (AI 2O 3/SBA-15), for propane dehydrogenation were investigated. AI 2O 3/SBA-15 was prepared either by an impregnation method using aluminum nitrate aqueous solution, or by the treatment of SBA-15 with a Al(OC 3H 7) 3 solution in anhydrous toluene. N 2- physisorption, FT-IR spectroscopy, solid-state 27Al MAS NMR spectroscopy, hydrogen chemisorption, XRF, NH 3 temperature-programmed desorption, X-ray photoelectron spectroscopy and TPO were used to characterize these samples. Among these catalysts, the PtSn-based catalyst supported on AI 2O 3/SBA-15, which was grafted with Al(OC 3H 7) 3, exhibited the best catalytic performance in terms of activity and stability The possible reason was due to the high Pt metal dispersion and/or the strong interactions among Pt, Sn, and the support.
AB - The catalytic properties of PtSn-based catalysts supported on siliceous SBA-15 and Al-modified SBA-15, such as Al-incorporated SBA-15 (A1SBA-15) and alumina-modified SBA-15 (AI 2O 3/SBA-15), for propane dehydrogenation were investigated. AI 2O 3/SBA-15 was prepared either by an impregnation method using aluminum nitrate aqueous solution, or by the treatment of SBA-15 with a Al(OC 3H 7) 3 solution in anhydrous toluene. N 2- physisorption, FT-IR spectroscopy, solid-state 27Al MAS NMR spectroscopy, hydrogen chemisorption, XRF, NH 3 temperature-programmed desorption, X-ray photoelectron spectroscopy and TPO were used to characterize these samples. Among these catalysts, the PtSn-based catalyst supported on AI 2O 3/SBA-15, which was grafted with Al(OC 3H 7) 3, exhibited the best catalytic performance in terms of activity and stability The possible reason was due to the high Pt metal dispersion and/or the strong interactions among Pt, Sn, and the support.
KW - Pt
KW - SBA-15
KW - aluminum modification
KW - dehydrogenation
KW - propane
UR - http://www.scopus.com/inward/record.url?scp=84859299555&partnerID=8YFLogxK
U2 - 10.1016/S1003-9953(11)60356-3
DO - 10.1016/S1003-9953(11)60356-3
M3 - 文章
AN - SCOPUS:84859299555
SN - 1003-9953
VL - 21
SP - 207
EP - 214
JO - Journal of Natural Gas Chemistry
JF - Journal of Natural Gas Chemistry
IS - 2
ER -