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Title: Understanding the interactions of CO 2 with doped and undoped SrTiO 3

Abstract

SrTiO 3 and doped SrTiO 3 have a wide range of applications in different fields. For example, Rh-doped SrTiO 3 has been shown to have photocatalytic activity for both hydrogen production and CO 2 conversion. In this study, both undoped and Rh-doped SrTiO 3 were synthesized by hydrothermal and polymerizable complex methods. Different characterizations techniques including X-ray photoelectron spectroscopy (XPS), XRD, Raman, and UV/Vis spectroscopy were utilized to establish correlations between the preparation methods and the electronic/structural properties of Rh-doped SrTiO 3. The presence of dopants and oxygen vacancies substantially influenced the CO 2 interactions with the surface, as revealed by the in situ infrared spectroscopic study. As a result, the presence of distinctly different adsorption sites was correlated to oxygen vacancies and oxidation states of Ti and Rh.

Authors:
ORCiD logo [1];  [1];  [1];  [2];  [1];  [1]
  1. Stony Brook Univ., Stony Brook, NY (United States)
  2. Stony Brook Univ., Stony Brook, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1333196
Report Number(s):
BNL-113182-2016-JA
Journal ID: ISSN 1864-5631; R&D Project: CO007; KC0301050
Grant/Contract Number:
SC00112704; SC0012704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
ChemSusChem
Additional Journal Information:
Journal Volume: 9; Journal Issue: 14; Journal ID: ISSN 1864-5631
Publisher:
ChemPubSoc Europe
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; SrTiO3; Rh doped SrTiO3; surface modification; electronic structure modification; catalysis

Citation Formats

Wu, Qiyuan, Cen, Jiajie, Goodman, Kenneth R., White, Michael G., Ramakrishnan, Girish, and Orlov, Alexander. Understanding the interactions of CO2 with doped and undoped SrTiO3. United States: N. p., 2016. Web. doi:10.1002/cssc.201600498.
Wu, Qiyuan, Cen, Jiajie, Goodman, Kenneth R., White, Michael G., Ramakrishnan, Girish, & Orlov, Alexander. Understanding the interactions of CO2 with doped and undoped SrTiO3. United States. doi:10.1002/cssc.201600498.
Wu, Qiyuan, Cen, Jiajie, Goodman, Kenneth R., White, Michael G., Ramakrishnan, Girish, and Orlov, Alexander. 2016. "Understanding the interactions of CO2 with doped and undoped SrTiO3". United States. doi:10.1002/cssc.201600498. https://www.osti.gov/servlets/purl/1333196.
@article{osti_1333196,
title = {Understanding the interactions of CO2 with doped and undoped SrTiO3},
author = {Wu, Qiyuan and Cen, Jiajie and Goodman, Kenneth R. and White, Michael G. and Ramakrishnan, Girish and Orlov, Alexander},
abstractNote = {SrTiO3 and doped SrTiO3 have a wide range of applications in different fields. For example, Rh-doped SrTiO3 has been shown to have photocatalytic activity for both hydrogen production and CO2 conversion. In this study, both undoped and Rh-doped SrTiO3 were synthesized by hydrothermal and polymerizable complex methods. Different characterizations techniques including X-ray photoelectron spectroscopy (XPS), XRD, Raman, and UV/Vis spectroscopy were utilized to establish correlations between the preparation methods and the electronic/structural properties of Rh-doped SrTiO3. The presence of dopants and oxygen vacancies substantially influenced the CO2 interactions with the surface, as revealed by the in situ infrared spectroscopic study. As a result, the presence of distinctly different adsorption sites was correlated to oxygen vacancies and oxidation states of Ti and Rh.},
doi = {10.1002/cssc.201600498},
journal = {ChemSusChem},
number = 14,
volume = 9,
place = {United States},
year = 2016,
month = 6
}

Journal Article:
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