INVESTING

Graduate student Zepeng Yang at work in You’s laboratory at the Shanghai Institute of Organic Chemistry.

Credit: Shuli You/ Shanghai Institute of Organic Chemistry

Using HF in TiO₂ synthesis (left) changes the crystals’ morphologies and facets relative to an HF-free method (right), as seen in these TEM images, and may unexpectedly alter the crystals’ catalytic properties.

Credit: ACS Catal