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Eliminating dissolution of platinum-based electrocatalysts at the atomic scale

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2020
bitstream_17409.pdf (2.778Mb)
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
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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 po...tential range up to 1.2 V.

Keywords:
Electrocatalysis / Fuel cells / Materials for energy and catalysis
Source:
Nature Materials, 2020, 19, 1207-1214
Publisher:
  • 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
[ Google Scholar ]
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URI
https://cer.ihtm.bg.ac.rs/handle/123456789/3698
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - 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 . .

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