Eliminating dissolution of platinum-based electrocatalysts at the atomic scale
Само за регистроване кориснике
2020
Аутори
Lopes, PietroLi, 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
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
A remaining challenge for deployment of proton-exchange membrane fuel cells is thelimited durability of Pt-nanoscale materials that operate at high voltages during thecathodic oxygen reduction reaction. In this work, atomic-scale insight into well-definedsingle crystalline, thin-film, and nanoscale surfaces exposed Pt dissolution trends thatgoverned the design and synthesis of durable materials. A newly defined metric, intrinsicdissolution, 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. Thismitigation strategy was applied towards 3 nm Pt3Au/C nanoparticles, resulting inelimination of Pt dissolution in liquid electrolyte, including 30-fold durability improvementvs. 3 nm Pt/C over extended potential range up t...o 1.2 V.
Кључне речи:
Electrocatalysis / Fuel cells / Materials for energy and catalysisИзвор:
Nature Materials, 2020, 19, 1207-1214Издавач:
- Nature Publishing Group
Финансирање / пројекти:
- 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
Напомена:
- The peer-reviewed version of the article: https://cer.ihtm.bg.ac.rs/handle/123456789/3698
DOI: 10.1038/s41563-020-0735-3
ISSN: 1476-1122
PubMed: 32724187
WoS: 000550625800004
Scopus: 2-s2.0-85088264549
Институција/група
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/123456789/3699 AB - A remaining challenge for deployment of proton-exchange membrane fuel cells is thelimited durability of Pt-nanoscale materials that operate at high voltages during thecathodic oxygen reduction reaction. In this work, atomic-scale insight into well-definedsingle crystalline, thin-film, and nanoscale surfaces exposed Pt dissolution trends thatgoverned the design and synthesis of durable materials. A newly defined metric, intrinsicdissolution, 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. Thismitigation strategy was applied towards 3 nm Pt3Au/C nanoparticles, resulting inelimination of Pt dissolution in liquid electrolyte, including 30-fold durability improvementvs. 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 thelimited durability of Pt-nanoscale materials that operate at high voltages during thecathodic oxygen reduction reaction. In this work, atomic-scale insight into well-definedsingle crystalline, thin-film, and nanoscale surfaces exposed Pt dissolution trends thatgoverned the design and synthesis of durable materials. A newly defined metric, intrinsicdissolution, 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. Thismitigation strategy was applied towards 3 nm Pt3Au/C nanoparticles, resulting inelimination of Pt dissolution in liquid electrolyte, including 30-fold durability improvementvs. 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 . .