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Low‐Temperature Transformation of Methane to Methanol on Pd1O4 Single Sites Anchored on the Internal Surface of Microporous Silicate |
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| Authors: | Weixin Huang Shiran Zhang Yu Tang Yuting Li Luan Nguyen Yuanyuan Li Junjun Shan Dequan Xiao Raphael Gagne Anatoly I. Frenkel Franklin Tao |
| Affiliation: | 1. Department of Chemical and Petroleum Engineering and Department of Chemistry, University of Kansas, Lawrence, KS, USA;2. Department of Physics, Yeshiva University, New York, NY, USA;3. Department of Chemistry and Chemical Engineering, University of New Haven, West Haven, CT, USA;4. Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY, USA |
| Abstract: | Direct conversion of methane to chemical feedstocks such as methanol under mild conditions is a challenging but ideal solution for utilization of methane. Pd1O4 single‐sites anchored on the internal surface of micropores of a microporous silicate exhibit high selectivity and activity in transforming CH4 to CH3OH at 50–95 °C in aqueous phase through partial oxidation of CH4 with H2O2. The selectivity for methanol production remains at 86.4 %, while the activity for methanol production at 95 °C is about 2.78 molecules per Pd1O4 site per second when 2.0 wt % CuO is used as a co‐catalyst with the Pd1O4@ZSM‐5. Thermodynamic calculations suggest that the reaction toward methanol production is highly favorable compared to formation of a byproduct, methyl peroxide. |
| Keywords: | methane methanol oxidation palladium single-sites |