Wang Hongjing, Wangl Liang, Nemoto Yoshihiro, Suzuki Norihiro, Yamauchi Yusuke
World Premier International (WPI) Research Center, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Tsukuba 305-0044, Japan.
J Nanosci Nanotechnol. 2010 Oct;10(10):6489-94. doi: 10.1166/jnn.2010.2517.
Synthesis of platinum nanoclusters (PNCs), with its advantages of high surface area and reduced materials costs, represents a greatly interesting class of nanomaterials. In this paper, a one-step, rapid and efficient aqueous-phase reaction to straightforwardly produce PNCs in high yield is proposed without the need for any organic solvent, template or ion replacement, which is carried out simply by microwave-assisted heat-treatment of an aqueous solution containing K2PtCl4 and 2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulfonicacid (HEPES) within 12 s. As-prepared platinum nanoclusters are porous interconnected nanostructures and possess very high surface area (41 m2 g(-1)). The combination of high surface area with the nanoarchitectures consisting of pores of the product is advantageous for catalytic applications.
