Eliminating dissolution of platinum-based electrocatalysts at the atomic scale
Authors
Lopes, Pietro
Li, Dongguo

Lv, Haifeng
Wang, Chao

Tripković, Dušan

Zhu, Yisi

Schimmenti, Roberto

Daimon, Hideo

Kang, Yijin

Snyder, Joshua

Becknell, Nigel

More, Karren

Strmcnik, Dusan
Marković, Nenad M.

Mavrikakis, Manos

Stamenković, Vojislav

Article (Accepted Version)

Metadata
Show full item recordAbstract
A remaining challenge for deployment of proton-exchange membrane fuel cells is the
limited durability of Pt-nanoscale materials that operate at high voltages during the
cathodic oxygen reduction reaction. In this work, atomic-scale insight into well-defined
single crystalline, thin-film, and nanoscale surfaces exposed Pt dissolution trends that
governed the design and synthesis of durable materials. A newly defined metric, intrinsic
dissolution, is essential to understanding the correlation between the measured Pt loss,
surface structure, size and ratio of Pt-nanoparticles in carbon support. It was found that utilization of Au underlayer promotes ordering of Pt surface atoms towards (111)- structure, while Au on the surface selectively protects low-coordinated Pt sites. This
mitigation strategy was applied towards 3 nm Pt3Au/C nanoparticles, resulting in
elimination of Pt dissolution in liquid electrolyte, including 30-fold durability improvement
vs. 3 nm Pt/C over extended po...tential range up to 1.2 V.
Keywords:
Electrocatalysis / Fuel cells / Materials for energy and catalysisSource:
Nature Materials, 2020, 19, 1207-1214Publisher:
- Nature Publishing Group
Funding / projects:
- US Department of Energy (DOE), contract no. DE-AC02-06CH11357
- US Department of Energy (DOE), grantant DE-FG02-05ER15731
- US Department of Energy (DOE), contract no. DE-AC02-05CH11231
Note:
- This is the peer-reviewed version of the article: Lopes, P.P., Li, D., Lv, H. et al. Eliminating dissolution of platinum-based electrocatalysts at the atomic scale. Nat. Mater. 19, 1207–1214 (2020). https://doi.org/10.1038/s41563-020-0735-3
- The published version of the article: https://cer.ihtm.bg.ac.rs/handle/123456789/3699
DOI: 10.1038/s41563-020-0735-3
ISSN: 1476-1122
PubMed: 32724187
WoS: 000550625800004
Scopus: 2-s2.0-85088264549
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Institution/Community
IHTMTY - JOUR AU - Lopes, Pietro AU - Li, Dongguo AU - Lv, Haifeng AU - Wang, Chao AU - Tripković, Dušan AU - Zhu, Yisi AU - Schimmenti, Roberto AU - Daimon, Hideo AU - Kang, Yijin AU - Snyder, Joshua AU - Becknell, Nigel AU - More, Karren AU - Strmcnik, Dusan AU - Marković, Nenad M. AU - Mavrikakis, Manos AU - Stamenković, Vojislav PY - 2020 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/3698 AB - A remaining challenge for deployment of proton-exchange membrane fuel cells is the limited durability of Pt-nanoscale materials that operate at high voltages during the cathodic oxygen reduction reaction. In this work, atomic-scale insight into well-defined single crystalline, thin-film, and nanoscale surfaces exposed Pt dissolution trends that governed the design and synthesis of durable materials. A newly defined metric, intrinsic dissolution, is essential to understanding the correlation between the measured Pt loss, surface structure, size and ratio of Pt-nanoparticles in carbon support. It was found that utilization of Au underlayer promotes ordering of Pt surface atoms towards (111)- structure, while Au on the surface selectively protects low-coordinated Pt sites. This mitigation strategy was applied towards 3 nm Pt3Au/C nanoparticles, resulting in elimination of Pt dissolution in liquid electrolyte, including 30-fold durability improvement vs. 3 nm Pt/C over extended potential range up to 1.2 V. PB - Nature Publishing Group T2 - Nature Materials T1 - Eliminating dissolution of platinum-based electrocatalysts at the atomic scale VL - 19 SP - 1207 EP - 1214 DO - 10.1038/s41563-020-0735-3 ER -
@article{ author = "Lopes, Pietro and Li, Dongguo and Lv, Haifeng and Wang, Chao and Tripković, Dušan and Zhu, Yisi and Schimmenti, Roberto and Daimon, Hideo and Kang, Yijin and Snyder, Joshua and Becknell, Nigel and More, Karren and Strmcnik, Dusan and Marković, Nenad M. and Mavrikakis, Manos and Stamenković, Vojislav", year = "2020", abstract = "A remaining challenge for deployment of proton-exchange membrane fuel cells is the limited durability of Pt-nanoscale materials that operate at high voltages during the cathodic oxygen reduction reaction. In this work, atomic-scale insight into well-defined single crystalline, thin-film, and nanoscale surfaces exposed Pt dissolution trends that governed the design and synthesis of durable materials. A newly defined metric, intrinsic dissolution, is essential to understanding the correlation between the measured Pt loss, surface structure, size and ratio of Pt-nanoparticles in carbon support. It was found that utilization of Au underlayer promotes ordering of Pt surface atoms towards (111)- structure, while Au on the surface selectively protects low-coordinated Pt sites. This mitigation strategy was applied towards 3 nm Pt3Au/C nanoparticles, resulting in elimination of Pt dissolution in liquid electrolyte, including 30-fold durability improvement vs. 3 nm Pt/C over extended potential range up to 1.2 V.", publisher = "Nature Publishing Group", journal = "Nature Materials", title = "Eliminating dissolution of platinum-based electrocatalysts at the atomic scale", volume = "19", pages = "1207-1214", doi = "10.1038/s41563-020-0735-3" }
Lopes, P., Li, D., Lv, H., Wang, C., Tripković, D., Zhu, Y., Schimmenti, R., Daimon, H., Kang, Y., Snyder, J., Becknell, N., More, K., Strmcnik, D., Marković, N. M., Mavrikakis, M.,& Stamenković, V.. (2020). Eliminating dissolution of platinum-based electrocatalysts at the atomic scale. in Nature Materials Nature Publishing Group., 19, 1207-1214. https://doi.org/10.1038/s41563-020-0735-3
Lopes P, Li D, Lv H, Wang C, Tripković D, Zhu Y, Schimmenti R, Daimon H, Kang Y, Snyder J, Becknell N, More K, Strmcnik D, Marković NM, Mavrikakis M, Stamenković V. Eliminating dissolution of platinum-based electrocatalysts at the atomic scale. in Nature Materials. 2020;19:1207-1214. doi:10.1038/s41563-020-0735-3 .
Lopes, Pietro, Li, Dongguo, Lv, Haifeng, Wang, Chao, Tripković, Dušan, Zhu, Yisi, Schimmenti, Roberto, Daimon, Hideo, Kang, Yijin, Snyder, Joshua, Becknell, Nigel, More, Karren, Strmcnik, Dusan, Marković, Nenad M., Mavrikakis, Manos, Stamenković, Vojislav, "Eliminating dissolution of platinum-based electrocatalysts at the atomic scale" in Nature Materials, 19 (2020):1207-1214, https://doi.org/10.1038/s41563-020-0735-3 . .