Tailoring the surface-oxygen defects of a tin dioxide support towards an enhanced electrocatalytic performance of platinum nanoparticles

Maidhily Manikandan; Toyokazu Tanabe; Gubbala V. Ramesh; Rajesh Kodiyath; Shigenori Ueda; Yoshiki Sakuma; Yusaku Homma; Arivuoli Dakshanamoorthy; Katsuhiko Ariga; Hideki Abe

doi:10.1039/C5CP04714E

Tailoring the surface-oxygen defects of a tin dioxide support towards an enhanced electrocatalytic performance of platinum nanoparticles†

Maidhily Manikandan,^ab Toyokazu Tanabe,*^ac Gubbala V. Ramesh,^a Rajesh Kodiyath,^a Shigenori Ueda,^d Yoshiki Sakuma,^a Yusaku Homma,^e Arivuoli Dakshanamoorthy,^b Katsuhiko Ariga^f and Hideki Abe*^a

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* Corresponding authors

^a National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
E-mail: ABE.Hideki@nims.go.jp

^b Crystal Growth Centre, Anna University, Chennai, Tamil Nadu 600-025, India

^c Kanagawa University, 3-27 Rokkakubashi, Yokohama, Kanagawa 221-8686, Japan
E-mail: ft101933wb@kanagawa-u.ac.jp

^d Synchrotron X-ray Station at SPring-8, National Institute for Materials Science, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan

^e International Center for Young Scientists, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan

^f WPI Center for Material Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

Abstract

Tin-dioxide nanofacets (SnO₂ NFs) are crystal-engineered so that oxygen defects on the maximal {113} surface are long-range ordered to give rise to a non-occupied defect band (DB) in the bandgap. SnO₂ NFs-supported platinum-nanoparticles exhibit an enhanced ethanol-electrooxidation activity due to the promoted charge-transport via the DB at the metal–semiconductor interface.

Physical Chemistry Chemical Physics

Tailoring the surface-oxygen defects of a tin dioxide support towards an enhanced electrocatalytic performance of platinum nanoparticles†

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Tailoring the surface-oxygen defects of a tin dioxide support towards an enhanced electrocatalytic performance of platinum nanoparticles

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