Dataset for C-O bond activation using ultra-low loading noble metal catalysts on moderately reducible oxides
| Main Author: | Lym, Jonathan |
|---|---|
| Other Authors: | Fu, Jiayi, Zheng, Weiqing, Alexopoulos, Konstantinos, Mironenko, Alexander, Li, Na, Boscoboinik, Jorge Anibal, Su, Dong, Webber, Ralph, Vlachos, Dionisios |
| Format: | Dataset |
| Terbitan: |
Mendeley
, 2020
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| Subjects: | |
| Online Access: |
https:/data.mendeley.com/datasets/pgmcmfb243 |
Daftar Isi:
- Selective C-O activation of complex multifunctional molecules is an essential step for many important chemical processes. Although reducible metal oxides are active and selective towards reductive C-O bond scission via the reverse Mars-van Krevelen mechanism, the most active oxides undergo bulk reduction during reaction. Here, we report a strategy for C-O bonds activation by surface doping moderately reducible oxides with ultra-low loading of noble metals. We demonstrate the principle using highly dispersed Pt anchored onto TiO2 for furfuryl alcohol conversion to methyl furan. A combination of density functional theory calculations, catalyst characterization (STEM, EPR, FTIR and XAS), kinetic experiments, and microkinetic modelling expose significant C-O activation rate enhancement, without either bulk catalyst reduction or unselective ring hydrogenation. A methodology is introduced to quantify various types of sites, revealing that the cationic redox Pt on TiO2 surface is more active than metallic sites for C-O bond activation.