Highly Dispersed and Stable Ni/SBA-15 Catalyst for Reverse Water-Gas Shift Reaction

Crystals

Luhui Wang¹  Hui Liu² 

[1] Department of Chemical Engineering, School of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan 316022, China;School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China;

关键词: reverse water-gas shift reaction;    Ni;    P123;    CO₂ conversion;   

DOI  :  10.3390/cryst11070790

来源: DOAJ

【 摘 要 】

A 1%Ni/SBA-15(P) catalyst was synthesized with a P123-assisted impregnation method, which exhibited high CO₂ conversion and stability in the reverse water-gas shift reaction. For the 1%Ni/SBA-15(P) catalyst, TEM and TPR characterizations demonstrated that the highly dispersed NiO particles at about 3 nm strongly interacted with the SiO₂ support. During reverse water-gas shift reaction, the 1%Ni/SBA-15(P) catalyst exhibited higher CO₂ conversion than the 1%Ni/SBA-15 catalyst prepared by the conventional impregnation method without P123. The CO₂ conversion of the 1%Ni/SBA-15(P) catalyst at 700 °C was 33.7%, which was three times that of the 1%Ni/SBA-15 catalyst. Moreover, the former catalyst was stable at 700 °C within 1000 min. The good activity and stability of the 1%Ni/SBA-15(P) catalyst was owing to small Ni particles that strongly interacted with SBA-15.

【 授权许可】

Unknown