1. Porous Ca3Co4O9 with enhanced thermoelectric properties derived from Sol–Gel synthesis. Issue 13 (October 2017) Authors: Bittner, Michael; Helmich, Lailah; Nietschke, Frederik; Geppert, Benjamin; Oeckler, Oliver; Feldhoff, Armin Journal: Journal of the European Ceramic Society Issue: Volume 37:Issue 13(2017) Page Start: 3909 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗