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Catalytically active Au-O(OH) x - species stabilized by alkali ions on zeolites and mesoporous oxides
Open accessAbstract
We report that the addition of alkali ions (sodium or potassium) to gold on KLTL-zeolite and mesoporous MCM-41 silica stabilizes mononuclear gold in Au-O(OH) x -(Na or K) ensembles. This single-site gold species is active for the low-temperature (<200°C) water-gas shift (WGS) reaction. Unexpectedly, gold is thus similar to platinum in creating –O linkages with more than eight alkali ions and establishing an active site on various supports. The intrinsic activity of the single-site gold species is the same on irreducible supports as on reducible ceria, iron oxide, and titania supports, apparently all sharing a common, similarly structured gold active site. This finding paves the way for using earth-abundant supports to disperse and stabilize precious metal atoms with alkali additives for the WGS and potentially other fuel-processing reactions.
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Identification of Active Gold Nanoclusters on Iron Oxide Supports for CO Oxidation
Herzing, A. A., Kiely, C. J., Carley, A. F., Landon, P., & Hutchings, G. J. (2008) · Science · doi:10.1126/science.1159639 · Cited by 1,530
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Yang, H. B., Hung, S.-F., Liu, S., Yuan, K., Miao, S., Zhang, L., Huang, X., Wang, H.-Y., Cai, W., Chen, R., et al. (2018) · Nature Energy · doi:10.1038/s41560-017-0078-8 · Cited by 2,239
Platinum single-atom and cluster catalysis of the hydrogen evolution reaction
Cheng, N., Stambula, S., Wang, D., Banis, M. N., Liu, J., Riese, A., Xiao, B., Li, R., Sham, T.-K., Liu, L.-M., et al. (2016) · Nature Communications · doi:10.1038/ncomms13638 · Cited by 2,072
Catalysis by Supported Single Metal Atoms
Liu, J. (2017) · ACS Catalysis · doi:10.1021/acscatal.6b01534 · Cited by 1,331
Tuning selectivity of electrochemical reactions by atomically dispersed platinum catalyst
Choi, C. H., Kim, M., Kwon, H. C., Cho, S. J., Yun, S., Kim, H.-T., Mayrhofer, K. J. J., Kim, H., & Choi, M. (2016) · Nature Communications · doi:10.1038/ncomms10922 · Cited by 849
High performance platinum single atom electrocatalyst for oxygen reduction reaction
Liu, J., Jiao, M., Lu, L., Barkholtz, H. M., Li, Y., Wang, Y., Jiang, L., Wu, Z., Liu, D.-J., Zhuang, L., et al. (2017) · Nature Communications · doi:10.1038/ncomms15938 · Cited by 772
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Metadata
- Authors
- Yang, M., Li, S., Wang, Y., Herron, J. A., Xu, Y., Allard, L. F., Lee, S., Huang, J., Mavrikakis, M., & Flytzani-Stephanopoulos, M.
- Venue
- Science
- Published
- 2014-12-19
- Volume
- 346
- Issue
- 6216
- Pages
- 1498-1501
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1990469294
- Cited by
- 652
- References
- 3
- FWCI
- 18.61
- Type
- journal article
- Language
- en
- Open access
- green
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- Yang, M., Li, S., Wang, Y., Herron, J. A., Xu, Y., Allard, L. F., Lee, S., Huang, J., Mavrikakis, M., & Flytzani-Stephanopoulos, M. (2014). Catalytically active Au-O(OH) x - species stabilized by alkali ions on zeolites and mesoporous oxides. Science. https://doi.org/10.1126/science.1260526
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