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• W3100529310 abstract "Abstract Enhancing the intrinsic activity and space time yield of Cu based heterogeneous methanol synthesis catalysts through CO 2 hydrogenation is one of the major topics in CO 2 conversion into value-added liquid fuels and chemicals. Here we report inverse ZrO 2 /Cu catalysts with a tunable Zr/Cu ratio have been prepared via an oxalate co-precipitation method, showing excellent performance for CO 2 hydrogenation to methanol. Under optimal condition, the catalyst composed by 10% of ZrO 2 supported over 90% of Cu exhibits the highest mass-specific methanol formation rate of 524 g MeOH kg cat −1 h −1 at 220 °C, 3.3 times higher than the activity of traditional Cu/ZrO 2 catalysts (159 g MeOH kg cat −1 h −1 ). In situ XRD-PDF, XAFS and AP-XPS structural studies reveal that the inverse ZrO 2 /Cu catalysts are composed of islands of partially reduced 1–2 nm amorphous ZrO 2 supported over metallic Cu particles. The ZrO 2 islands are highly active for the CO 2 activation. Meanwhile, an intermediate of formate adsorbed on the Cu at 1350 cm −1 is discovered by the in situ DRIFTS. This formate intermediate exhibits fast hydrogenation conversion to methoxy. The activation of CO 2 and hydrogenation of all the surface oxygenate intermediates are significantly accelerated over the inverse ZrO 2 /Cu configuration, accounting for the excellent methanol formation activity observed." @default.
• W3100529310 created "2020-11-23" @default.
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• W3100529310 date "2020-11-13" @default.
• W3100529310 modified "2023-10-11" @default.
• W3100529310 title "Inverse ZrO2/Cu as a highly efficient methanol synthesis catalyst from CO2 hydrogenation" @default.
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• W3100529310 doi "https://doi.org/10.1038/s41467-020-19634-8" @default.
• W3100529310 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7666171" @default.
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