TY  - JOUR
AU  - Wang, Yehong
AU  - Wang, Jiapei
AU  - Zhang, Yuda
AU  - Guo, Qiang
AU  - An, Jie
AU  - Liang, Yafei
AU  - Wang, Yanan
AU  - Cao, Pengfei
AU  - Heggen, Marc
AU  - Dunin-Borkowski, Rafal E.
AU  - Zhu, Xiangxue
AU  - Li, Xiujie
AU  - Wang, Feng
TI  - Revealing the Catalytic Role of Sn Dopant in CO 2 ‐Oxidative Dehydrogenation of Propane over Pt/Sn‐CeO 2 Catalyst
JO  - ChemCatChem
VL  - 14
IS  - 23
SN  - 1867-3880
CY  - Weinheim
PB  - Wiley-VCH
M1  - FZJ-2023-00015
SP  - 1-12
PY  - 2022
AB  - CO2-oxidative dehydrogenation of propane (CO2-ODHP) provides a promising route for propylene production. Sufficient propane conversion and propylene selectivity remain a great challenge due to the difficulty in activating inert propane and CO2 simultaneously. Herein, a Sn doped CeO2 supported Pt (Pt/Sn-CeO2) catalyst in CO2-ODHP reaction is reported. Sn doping appears to kill two birds with one stone for propane and CO2 activation. On the one side, it increases the electron density of Pt species via PtSn alloy formation, promoting propane adsorption and C−H bond cleavage. On the other side, it enhances oxygen vacancy concentrations of CeO2 support, facilitating CO2 dissociation. A higher propylene selectivity (63.9 % vs 22.3 %) was obtained on 0.1 wt % Pt/1.0 wt % Sn-CeO2 than that on 0.1 wt % Pt/CeO2 with a comparable propane conversion (15.1 % vs 14.3 %) at 550 °C after 240 min on stream. This work provides a reference for designing efficient catalysts.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000879602500001
DO  - DOI:10.1002/cctc.202200982
UR  - https://juser.fz-juelich.de/record/916663
ER  -