In this talk, I will summarize the recent research on the crystal phase-controlled synthesis of novel noble metal nanomaterials in my group. It includes the first-time synthesis of hexagonal-close packed (hcp) Au nanosheets (AuSSs) on graphene oxide [Nat. Commun. 2011, 2, 292], surface-induced phase transformation of AuSSs from hcp to face-centered cubic (fcc) structures [Nat. Commun., 2015, 6, 6571], alternating hcp/fcc Au square-like plates from AuSSs [Angew. Chem. Int. Ed. 2011, 50, 12245], ultrathin Au nanowires containing hcp phase [Adv. Mater. 2012, 24, 979], synthesis of ultrathin fcc Au@Pt and Au@Pd rhombic nanoplates through the epitaxial growth of Pt and Pd on the hcp AuSSs, respectively [Angew. Chem. Int. Ed., 2015, 54, 5672], the first-time synthesis of 4H hexagonal phase Au nanoribbons (NRBs) and their phase transformation to fcc Au RNBs as well as the epitaxial growth of Ag, Pt and Pd on 4H Au NRBs to form the 4H/fcc Au@Ag, Au@Pt and Au@Pd core–shell NRBs [Nat. Commun., 2015, 6, 7684], and the synthesis of 4H/fcc-Au@metal sulfide core-shell NRB heterostructures [J. Am. Chem. Soc., 2015, 137, 10910]. In addition, the concept of crystal-phase noble metal heterostructures is proposed [ACS Nano, 2015, DOI: 10.1021/acsnano.5b05040].

Crystal phase-controlled synthesis of novel noble metal nanomaterials

251st National Meeting (2016)

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