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

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.
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:
Report Number(s):
Journal ID: ISSN 1864-5631; R&D Project: CO007; KC0301050
Grant/Contract Number:
SC00112704; SC0012704
Accepted Manuscript
Journal Name:
Additional Journal Information:
Journal Volume: 9; Journal Issue: 14; Journal ID: ISSN 1864-5631
ChemPubSoc Europe
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; SrTiO3; Rh doped SrTiO3; surface modification; electronic structure modification; catalysis
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1400982