介电载体上的自组装金属纳米线：金红石型TiO₂(110) 上的钯

Self-assembled metallic nanowires on a dielectric support: Pd on rutile TiO2(110).

作者信息

Humphrey David S, Cabailh Gregory, Pang Chi L, Muryn Chris A, Cavill Stuart A, Marchetto Helder, Potenza Alessandro, Dhesi Sarnjeet S, Thornton Geoff

机构信息

London Centre for Nanotechnology and Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom.

出版信息

Nano Lett. 2009 Jan;9(1):155-9. doi: 10.1021/nl802703e.

DOI:10.1021/nl802703e

PMID:19113893

Abstract

Palladium nanoparticles supported on rutile TiO(2)(110)-1 x 1 have been studied using the complementary techniques of scanning tunneling microscopy and X-ray photoemission electron microscopy. Two distinct types of palladium nanoparticles are observed, namely long nanowires up to 1000 nm long, and smaller dotlike features with diameters ranging from 80-160 nm. X-ray photoemission electron microscopy reveals that the nanoparticles are composed of metallic palladium, separated by the bare TiO(2)(110) surface.

摘要

利用扫描隧道显微镜和X射线光电子发射电子显微镜等互补技术，对负载在金红石型TiO(2)(110)-1 x 1上的钯纳米颗粒进行了研究。观察到两种不同类型的钯纳米颗粒，即长度达1000 nm的长纳米线，以及直径在80 - 160 nm范围内的较小点状特征。X射线光电子发射电子显微镜显示，纳米颗粒由金属钯组成，被裸露的TiO(2)(110)表面隔开。