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Effect of Strong Metal‐Support Interaction of Pt/TiO 2 on Hydrodeoxygenation of m‐Cresol
Author(s) -
Zhao Xiangyu,
Wu Xiaoxia,
Wang Hua,
Han Jinyu,
Ge Qingfeng,
Zhu Xinli
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201801147
Subject(s) - deoxygenation , hydrodeoxygenation , catalysis , oxygen , metal , toluene , chemistry , materials science , photochemistry , inorganic chemistry , organic chemistry , selectivity
Hydrodeoxygenation of m‐cresol was investigated at 350 °C and atmospheric pressure over Pt/TiO 2 reduced at different temperatures. Increasing reduction temperature results in an increased degree of strong metal‐support interactions (SMSI). Consequently, both the number of the perimeter sites at the Pt‐TiO 2 interface and the oxygen vacancy sites in close proximity to Pt are increased. Increasing reduction temperature from 350 to 550 °C leads to the turnover frequency of toluene formation to increase by more than 3 times. These results indicate that the perimeter sites at the Pt‐TiO 2 interface with oxygen vacancy are the more active sites for deoxygenation than the bare Pt sites. The results also suggest that balancing the SMSI effect and the number of exposed Pt sites is essential for an efficient catalyst for deoxygenation of phenolics to aromatics.