Visualizing Under-Coordinated Surface Atoms on 3D Nanoporous Gold Catalysts

Pan Liu; Pengfei Guan; Akihiko Hirata; Ling Zhang; Luyang Chen; Yuren Wen; Yi Ding; Takeshi Fujita; Jonah Erlebacher; Mingwei Chen

doi:10.1002/adma.201504032

Visualizing Under-Coordinated Surface Atoms on 3D Nanoporous Gold Catalysts

Adv Mater. 2016 Mar 2;28(9):1753-9. doi: 10.1002/adma.201504032. Epub 2015 Dec 16.

Authors

Pan Liu^{1

2}, Pengfei Guan^{2

3}, Akihiko Hirata², Ling Zhang², Luyang Chen², Yuren Wen², Yi Ding⁴, Takeshi Fujita², Jonah Erlebacher⁵, Mingwei Chen^{1

2

6}

Affiliations

¹ State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China.
² WPI Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan.
³ Beijing Computational Science Research Center, Beijing, 100084, China.
⁴ Institute of New Energy Materials & Low Carbon Technology, Tianjin University of Technology, Tianjin, 300384, P. R. China.
⁵ Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA.
⁶ CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan.

PMID: 26676880
DOI: 10.1002/adma.201504032

Abstract

The intricate 3D geometric shape and surface atomic structure of nanoporous gold catalysts are investigated using aberration-corrected scanning transmission electron microscopy in combination with discrete tomography. The real-space 3D atomic configurations illustrate geometrically necessary surface defects on the curved surface of the NPG, offering atomic insights into the catalysis of the nanoporous catalyst.

Keywords: discrete tomography; gold catalysts; nanocatalysis; nanoporous gold; surface defects.