The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.
Improving Electrocatalysts for O2Reduction by Fine-Tuning the Pt−Support Interaction: Pt Monolayer on the Surfaces of a Pd3Fe(111) Single-Crystal Alloy
Abstract
We improved the effectiveness of Pt monolayer electrocatalysts for the oxygen-reduction reaction (ORR) using a novel approach to fine-tuning the Pt monolayer interaction with its support, exemplified by an annealed Pd(3)Fe(111) single-crystal alloy support having a segregated Pd layer. Low-energy ion scattering and low-energy electron diffraction studies revealed that a segregated Pd layer, with the same structure as Pd (111), is formed on the surface of high-temperature-annealed Pd(3)Fe(111). This Pd layer is considerably more active than Pd(111); its ORR kinetics is comparable to that of a Pt(111) surface. The enhanced catalytic activity of the segregated Pd layer compared to that of bulk Pd apparently reflects the modification of Pd surface's electronic properties by underlying Fe. The Pd(3)Fe(111) suffers a large loss in ORR activity when the subsurface Fe is depleted by potential cycling (i.e., repeated excursions to high potentials in acid solutions). The Pd(3)Fe(111) surface is an excellent substrate for a Pt monolayer ORR catalyst, as verified by its enhanced ORR kinetics on PT(ML)/Pd/Pd(3)Fe(111). Our density functional theory studies suggest that the observed enhancement of ORR activity originates mainly from the destabilization of OH binding and the decreased Pt-OH coverage on the Pt/Pd/Pd(3)Fe(111) surface. The activity of Pt(ML)/Pd(111) and Pt(111) is limited by OH removal, whereas the activity of Pt(ML)/Pd/Pd(3)Fe(111) is limited by the O-O bond scission, which places these two surfaces on the two sides of the volcano plot.
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Citations
Cites
Origin of the Overpotential for Oxygen Reduction at a Fuel-Cell Cathode
Nørskov, J. K., Rossmeisl, J., Logadottir, A., Lindqvist, L., Kitchin, J. R., Bligaard, T., & Jónsson, H. (2004) · The Journal of Physical Chemistry B · doi:10.1021/jp047349j · Cited by 13,153
Gasteiger, H. A., Kocha, S. S., Sompalli, B., & Wagner, F. T. (2005) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2004.06.021 · Cited by 4,876
Improved Oxygen Reduction Activity on Pt 3 Ni(111) via Increased Surface Site Availability
Stamenkovic, V. R., Fowler, B., Mun, B. S., Wang, G., Ross, P. N., Lucas, C. A., & Marković, N. M. (2007) · Science · doi:10.1126/science.1135941 · Cited by 4,421
Computational high-throughput screening of electrocatalytic materials for hydrogen evolution
Greeley, J., Jaramillo, T. F., Bonde, J., Chorkendorff, I., & Nørskov, J. K. (2006) · Nature Materials · doi:10.1038/nmat1752 · Cited by 4,097
Zhang, J., Vukmirovic, M. B., Xu, Y., Mavrikakis, M., & Adzic, R. R. (2005) · Angewandte Chemie International Edition · doi:10.1002/anie.200462335 · Cited by 1,106
Self-citationCleaning the air and improving health with hydrogen fuel-cell vehicles
Jacobson, M. Z., Colella, W. G., & Golden, D. M. (2005) · Science · doi:10.1126/science.1109157 · Cited by 1,023
Stamenkovic, V. R., Mun, B. S., Mayrhofer, K. J. J., Ross, P. N., & Markovic, N. M. (2006) · Journal of the American Chemical Society · doi:10.1021/ja0600476 · Cited by 974
Adsorption and Dissociation of O 2 on Pt−Co and Pt−Fe Alloys
Xu, Y., Ruban, A. V., & Mavrikakis, M. (2004) · Journal of the American Chemical Society · doi:10.1021/ja031701+ · Cited by 636
Self-citationOrigin of Enhanced Activity in Palladium Alloy Electrocatalysts for Oxygen Reduction Reaction
Shao, M., Liu, P., Zhang, J., & Adzic, R. (2007) · The Journal of Physical Chemistry B · doi:10.1021/jp0689971 · Cited by 307
Improved oxygen reduction reactivity of platinum monolayers on transition metal surfaces
Nilekar, A. U., & Mavrikakis, M. (2008) · Surface Science · doi:10.1016/j.susc.2008.05.036 · Cited by 226
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Recent Advances in Electrocatalysts for Oxygen Reduction Reaction
Shao, M., Chang, Q., Dodelet, J.-P., & Chenitz, R. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00462 · Cited by 3,903
Strain-controlled electrocatalysis on multimetallic nanomaterials
Luo, M., & Guo, S. (2017) · Nature Reviews Materials · doi:10.1038/natrevmats.2017.59 · Cited by 1,115
Recent advances in catalysts for direct methanol fuel cells
Zhao, X., Yin, M., Ma, L., Liang, L., Liu, C., Liao, J., Lu, T., & Xing, W. (2011) · Energy & Environmental Science · doi:10.1039/c1ee01307f · Cited by 939
Tuning the Activity of Pt(111) for Oxygen Electroreduction by Subsurface Alloying
Stephens, I. E. L., Bondarenko, A. S., Perez-Alonso, F. J., Calle-Vallejo, F., Bech, L., Johansson, T. P., Jepsen, A. K., Frydendal, R., Knudsen, B. P., Rossmeisl, J., et al. (2011) · Journal of the American Chemical Society · doi:10.1021/ja111690g · Cited by 526
Unifying Kinetic and Thermodynamic Analysis of 2 e– and 4 e– Reduction of Oxygen on Metal Surfaces
Hansen, H. A., Viswanathan, V., & Nørskov, J. K. (2014) · The Journal of Physical Chemistry C · doi:10.1021/jp4100608 · Cited by 465
Probing the nanoscale structure of the catalytically active overlayer on Pt alloys with rare earths
Pedersen, A. F., Ulrikkeholm, E. T., Escudero-Escribano, M., Johansson, T. P., Malacrida, P., Pedersen, C. M., Hansen, M. H., Jensen, K. D., Rossmeisl, J., Friebel, D., et al. (2016) · Nano Energy · doi:10.1016/j.nanoen.2016.05.026 · Cited by 66
Cai, Y., & Adzic, R. R. (2011) · Advances in Physical Chemistry · doi:10.1155/2011/530397 · Cited by 38
Self-citationRational Design of Competitive Electrocatalysts for Hydrogen Fuel Cells
Stolbov, S., & Alcántara Ortigoza, M. (2012) · The Journal of Physical Chemistry Letters · doi:10.1021/jz201551e · Cited by 16
Metadata
- Authors
- Zhou, W.-P., Yang, X., Vukmirovic, M. B., Koel, B. E., Jiao, J., Peng, G., Mavrikakis, M., & Adzic, R. R.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-08-12
- Volume
- 131
- Issue
- 35
- Pages
- 12755-12762
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W1967926656
- Cited by
- 228
- References
- 10
- FWCI
- 11.07
- Type
- journal article
- Language
- en
- Open access
- closed
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