Li1, H., Wei1, P., Wang2, J., Tang1, S., & Guo2, C. (2013). Cu/ZnO/Al2O3 Catalysts Modified by Octa-Potassium Titanate Whiskers with Ultrasonic Treatment for Methanol Synthesis. Asian Journal of Chemistry, 25(18), 10255–10261. https://doi.org/10.14233/ajchem.2013.15255