Hydrogen Loading of Oxide Powder Particles: A Transmission IR Study for the Case of Zinc Oxide

被引：38

作者：

Noei, Heshmat ^{[1
]}

Qiu, Hengshan ^{[2
]}

Wang, Yuemin ^{[1
,2
]}

Muhler, Martin ^{[1
]}

Woell, Christof ^{[3
]}

机构：

[1] Ruhr Univ Bochum, Lab Ind Chem, D-44780 Bochum, Germany

[2] Ruhr Univ Bochum, Dept Phys Chem 1, D-44780 Bochum, Germany

[3] Karlsruhe Inst Technol, Inst Funct Interfaces, D-76021 Karlsruhe, Germany

来源：

CHEMPHYSCHEM | 2010年 / 11卷 / 17期

关键词：

catalysis; hydrogen; IR spectroscopy; nanoparticles; zinc oxide; INFRARED-SPECTROSCOPY; VIBRATIONAL SPECTROSCOPY; ZNO; SURFACES; H-2; SEMICONDUCTORS; TEMPERATURE; CHEMISTRY; SPECTRUM; TIO2;

D O I：

10.1002/cphc.201000312

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Exposing ZnO nanoparticles to atomic and molecular hydrogen at room temperature decreases the transmission coefficient, which demonstrates that diffusion of hydrogen atoms to subsurface and bulk ZnO sites already occurs at these fairly low temperatures (see figure). The interstitial hydrogen atoms act as n-type shallow donors, which increase the density of electrons in the conduction band. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：3604 / 3607

页数：4

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