Details

Autor(en) / Beteiligte

• Han, Zhe
• Tang, Chizhou
• Sha, Feng
• Tang, Shan
• Wang, Jijie
• Li, Can

Titel

CO2 hydrogenation to methanol on ZnO-ZrO2 solid solution catalysts with ordered mesoporous structure

Ist Teil von

• Journal of catalysis, 2021-04, Vol.396, p.242-250

Ort / Verlag

Elsevier Inc

Erscheinungsjahr

2021

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• [Display omitted] •ZnO-ZrO2 catalysts with ordered mesoporous structure were prepared by evaporation-induced self-assembly method.•The EISA catalysts exhibit better performance in CO2 hydrogenation compared to that prepared by co-precipitation.•The better performance is mainly ascribed to the higher specific surface areas and more active sites.•The 20% ZnO-ZrO2 (EISA, cleaned) achieves a methanol formation rate of 22.1 mmol·h-1·gcat-1 at 320°C, 5.5 MPa. CO2 hydrogenation to methanol is becoming a potential route for reducing CO2 emission, benefiting from the worldwide growth of renewable energy for H2 production. In this work, the ZnO-ZrO2 solid solution catalysts with ordered mesoporous structure were constructed by the evaporation-induced self-assembly (EISA) process using triblock copolymer P123 as the template. The 20% ZnO-ZrO2 catalyst prepared by the evaporation-induced self-assembly process shows a methanol formation rate of 22.1 mmol·h-1·gcat-1 at 320°C, 5.5 MPa, which is 1.35 times that of the catalyst prepared by co-precipitation. Characterizations prove that the EISA catalysts have larger specific surface areas and more sites for the activation of CO2 and H2, which are related to the higher CO2 conversion.