TY - JOUR A1 - Wuithschick, M. A1 - Paul, B. A1 - Bienert, Ralf A1 - Sarfraz, A. A1 - Vainio, U. A1 - Sztucki, M. A1 - Kraehnert, R. A1 - Strasser, P. A1 - Rademann, K. A1 - Emmerling, Franziska A1 - Polte, J. T1 - Size-controlled synthesis of colloidal silver nanoparticles based on mechanistic understanding T2 - Chemistry of materials N2 - Metal nanoparticles have attracted much attention due to their unique properties. Size control provides an effective key to an accurate adjustment of colloidal properties. The common approach to size control is testing different sets of parameters via trial and error. The actual particle growth mechanisms, and in particular the influences of synthesis parameters on the growth process, remain a black box. As a result, precise size control is rarely achieved for most metal nanoparticles. This contribution presents an approach to size control that is based on mechanistic knowledge. It is exemplified for a common silver nanoparticle synthesis, namely, the reduction of AgClO4 with NaBH4. Conducting this approach allowed a well-directed modification of this synthesis that enables, for the first time, the size-controlled production of silver nanoparticles 4–8 nm in radius without addition of any stabilization agent. PB - American Chemical Society CY - Washington, DC KW - Silver nanoparticles KW - Growth mechanism KW - SAXS KW - Size control KW - Sodium borohydride PY - 2013 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/30194 AN - OPUS4-30194 SN - 0897-4756 SN - 1520-5002 VL - 25 IS - 23 SP - 4679 EP - 4689 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany