Lyu Meng, Zheng Jianwei, Coulthard Claire, Ren Jing, Zhao Yufei, Tsang Shik Chi Edman, Chen Chunping, O'Hare Dermot
Chemistry Research Laboratory, Department of Chemistry, University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
Wolfson Catalysis Centre, Department of Chemistry, University of Oxford Oxford OX1 3QR UK.
Chem Sci. 2023 Sep 1;14(36):9814-9819. doi: 10.1039/d3sc02205f. eCollection 2023 Sep 20.
The efficient production of methanol by reduction of CO using green hydrogen is a promising strategy from both a green chemistry and a carbon net zero perspective. Herein, we report the synthesis of well-dispersed core-shell catalyst precursors using silica@CuZnAl-LDHs that can convert CO to methanol. The catalyst precursors can be formed using either a commercially available silica (ES757) or a mesoporous silica ( MCM-48). These hybrid materials show significantly enhanced catalytic performance compared to the equivalent unsupported CuZnAl LDH precursor. Space-time yields of up to 0.7 g g h under mild operating conditions were observed.
从绿色化学和碳净零的角度来看，利用绿色氢气还原一氧化碳高效生产甲醇是一种很有前景的策略。在此，我们报道了使用二氧化硅@铜锌铝层状双氢氧化物合成能将一氧化碳转化为甲醇的分散良好的核壳催化剂前驱体。该催化剂前驱体可以使用市售二氧化硅（ES757）或介孔二氧化硅（MCM - 48）来形成。与同等的无载体铜锌铝层状双氢氧化物前驱体相比，这些杂化材料显示出显著增强的催化性能。在温和的操作条件下观察到时空产率高达0.7 g g⁻¹ h⁻¹。
