A fingerprint of metal-oxide powders: energy-resolved distribution of electron traps

Akio Nitta; Mai Takase; Mai Takashima; Naoya Murakami; Bunsho Ohtani

doi:10.1039/c6cc04999k

A fingerprint of metal-oxide powders: energy-resolved distribution of electron traps

Chem Commun (Camb). 2016 Oct 4;52(81):12096-12099. doi: 10.1039/c6cc04999k.

Authors

Akio Nitta¹, Mai Takase², Mai Takashima³, Naoya Murakami⁴, Bunsho Ohtani³

Affiliations

¹ Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan.
² Graduate School of Engineering, Muroran Institute of Technology, Muroran 050-8585, Japan.
³ Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan and Institute for Catalysis, Hokkaido University, Sapporo 001-0021, Japan. ohtani@cat.hokudai.ac.jp.
⁴ Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu 804-8550, Japan.

PMID: 27709160
DOI: 10.1039/c6cc04999k

Abstract

Here we propose a method for the identification of metal-oxide powders with the energy-resolved distribution of electron traps and conduction-band bottom position reflecting a surface structure and a bulk structure, respectively, as a fingerprint, based on the degree of coincidence for a given pair of samples, measured using newly developed reversed double-beam photoacoustic spectroscopy.