NDLI: Modulating the surface defects of titanium oxides and consequent reactivity of Pt catalysts† †Electronic supplementary information (ESI) available: Experimental and theoretical details, supporting figures and tables. See DOI: 10.1039/c9sc03119g

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Modulating the surface defects of titanium oxides and consequent reactivity of Pt catalysts† †Electronic supplementary information (ESI) available: Experimental and theoretical details, supporting figures and tables. See DOI: 10.1039/c9sc03119g

Content Provider	Semantic Scholar
Author	Wang, Yanan Liu, Sihang Pei, Chunlei Fu, Qiang Zhao, Zhi-Jian Mu, Rentao Gong, Jinlong
Copyright Year	2019
Abstract	In heterogeneous catalysis, it is widely believed that the surface states of catalyst supports can strongly influence the catalytic performance, because active components are generally anchored on supports. This paper describes a detailed understanding of the influence of surface defects of TiO2 supports on the catalytic properties of Pt catalysts. Pt was deposited on reduced (r-), hydroxylated (h-), and oxidized (o-) TiO2 surfaces, respectively, and the different surface states of TiO2 not only lead to differences in metal dispersion, but also distinct electronic interactions between the metal and the support. The highest reactivity for catalytic CO oxidation can be achieved over the Pt catalyst supported on reduced TiO2 with surface oxygen vacancies. The turnover frequency (TOF) of this catalyst is determined to be ∼11 times higher than that of Pt supported on oxidized TiO2. More importantly, the reactivity is seen to increase in the sequence of Pt/o-TiO2 < Pt/h-TiO2 < Pt/r-TiO2, which is well consistent with the trend of the calculated Bader charge of Pt.
Starting Page	10531
Ending Page	10536
Page Count	6
File Format	PDF HTM / HTML
DOI	10.1039/c9sc03119g
Alternate Webpage(s)	https://pubs.rsc.org/en/content/articlepdf/2019/sc/c9sc03119g
Alternate Webpage(s)	http://www.rsc.org/suppdata/c9/sc/c9sc03119g/c9sc03119g1.pdf
PubMed reference number	32055375
Alternate Webpage(s)	https://doi.org/10.1039/c9sc03119g
Journal	Medline
Volume Number	10
Journal	Chemical science
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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