Self-supported Pt–CoO networks combining high specific activity with high surface area for oxygen reduction

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Standard

Self-supported Pt–CoO networks combining high specific activity with high surface area for oxygen reduction. / Sievers, Gustav W.; Jensen, Anders W.; Quinson, Jonathan; Zana, Alessandro; Bizzotto, Francesco; Oezaslan, Mehtap; Dworzak, Alexandra; Kirkensgaard, Jacob J.K.; Smitshuysen, Thomas E. L.; Kadkhodazadeh, Shima; Juelsholt, Mikkel; Jensen, Kirsten M. Ø.; Anklam, Kirsten; Wan, Hao; Schäfer, Jan; Čépe, Klára; Escudero-Escribano, María; Rossmeisl, Jan; Quade, Antje; Brüser, Volker; Arenz, Matthias.

I: Nature Materials, Bind 20, 2021, s. 208–213.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Sievers, GW, Jensen, AW, Quinson, J, Zana, A, Bizzotto, F, Oezaslan, M, Dworzak, A, Kirkensgaard, JJK, Smitshuysen, TEL, Kadkhodazadeh, S, Juelsholt, M, Jensen, KMØ, Anklam, K, Wan, H, Schäfer, J, Čépe, K, Escudero-Escribano, M, Rossmeisl, J, Quade, A, Brüser, V & Arenz, M 2021, 'Self-supported Pt–CoO networks combining high specific activity with high surface area for oxygen reduction', Nature Materials, bind 20, s. 208–213. https://doi.org/10.1038/s41563-020-0775-8

APA

Sievers, G. W., Jensen, A. W., Quinson, J., Zana, A., Bizzotto, F., Oezaslan, M., Dworzak, A., Kirkensgaard, J. J. K., Smitshuysen, T. E. L., Kadkhodazadeh, S., Juelsholt, M., Jensen, K. M. Ø., Anklam, K., Wan, H., Schäfer, J., Čépe, K., Escudero-Escribano, M., Rossmeisl, J., Quade, A., ... Arenz, M. (2021). Self-supported Pt–CoO networks combining high specific activity with high surface area for oxygen reduction. Nature Materials, 20, 208–213. https://doi.org/10.1038/s41563-020-0775-8

Vancouver

Sievers GW, Jensen AW, Quinson J, Zana A, Bizzotto F, Oezaslan M o.a. Self-supported Pt–CoO networks combining high specific activity with high surface area for oxygen reduction. Nature Materials. 2021;20:208–213. https://doi.org/10.1038/s41563-020-0775-8

Author

Sievers, Gustav W. ; Jensen, Anders W. ; Quinson, Jonathan ; Zana, Alessandro ; Bizzotto, Francesco ; Oezaslan, Mehtap ; Dworzak, Alexandra ; Kirkensgaard, Jacob J.K. ; Smitshuysen, Thomas E. L. ; Kadkhodazadeh, Shima ; Juelsholt, Mikkel ; Jensen, Kirsten M. Ø. ; Anklam, Kirsten ; Wan, Hao ; Schäfer, Jan ; Čépe, Klára ; Escudero-Escribano, María ; Rossmeisl, Jan ; Quade, Antje ; Brüser, Volker ; Arenz, Matthias. / Self-supported Pt–CoO networks combining high specific activity with high surface area for oxygen reduction. I: Nature Materials. 2021 ; Bind 20. s. 208–213.

Bibtex

@article{cfe255d5f5554ec4adf844ed2353d9b3,
title = "Self-supported Pt–CoO networks combining high specific activity with high surface area for oxygen reduction",
abstract = "Several concepts for platinum-based catalysts for the oxygen reduction reaction (ORR) are presented that exceed the US Department of Energy targets for Pt-related ORR mass activity. Most concepts achieve their high ORR activity by increasing the Pt specific activity at the expense of a lower electrochemically active surface area (ECSA). In the potential region controlled by kinetics, such a lower ECSA is counterbalanced by the high specific activity. At higher overpotentials, however, which are often applied in real systems, a low ECSA leads to limitations in the reaction rate not by kinetics, but by mass transport. Here we report on self-supported platinum–cobalt oxide networks that combine a high specific activity with a high ECSA. The high ECSA is achieved by a platinum–cobalt oxide bone nanostructure that exhibits unprecedentedly high mass activity for self-supported ORR catalysts. This concept promises a stable fuel-cell operation at high temperature, high current density and low humidification.",
author = "Sievers, {Gustav W.} and Jensen, {Anders W.} and Jonathan Quinson and Alessandro Zana and Francesco Bizzotto and Mehtap Oezaslan and Alexandra Dworzak and Kirkensgaard, {Jacob J.K.} and Smitshuysen, {Thomas E. L.} and Shima Kadkhodazadeh and Mikkel Juelsholt and Jensen, {Kirsten M. {\O}.} and Kirsten Anklam and Hao Wan and Jan Sch{\"a}fer and Kl{\'a}ra {\v C}{\'e}pe and Mar{\'i}a Escudero-Escribano and Jan Rossmeisl and Antje Quade and Volker Br{\"u}ser and Matthias Arenz",
year = "2021",
doi = "10.1038/s41563-020-0775-8",
language = "English",
volume = "20",
pages = "208–213",
journal = "Nature Materials",
issn = "1476-1122",
publisher = "nature publishing group",

}

RIS

TY - JOUR

T1 - Self-supported Pt–CoO networks combining high specific activity with high surface area for oxygen reduction

AU - Sievers, Gustav W.

AU - Jensen, Anders W.

AU - Quinson, Jonathan

AU - Zana, Alessandro

AU - Bizzotto, Francesco

AU - Oezaslan, Mehtap

AU - Dworzak, Alexandra

AU - Kirkensgaard, Jacob J.K.

AU - Smitshuysen, Thomas E. L.

AU - Kadkhodazadeh, Shima

AU - Juelsholt, Mikkel

AU - Jensen, Kirsten M. Ø.

AU - Anklam, Kirsten

AU - Wan, Hao

AU - Schäfer, Jan

AU - Čépe, Klára

AU - Escudero-Escribano, María

AU - Rossmeisl, Jan

AU - Quade, Antje

AU - Brüser, Volker

AU - Arenz, Matthias

PY - 2021

Y1 - 2021

N2 - Several concepts for platinum-based catalysts for the oxygen reduction reaction (ORR) are presented that exceed the US Department of Energy targets for Pt-related ORR mass activity. Most concepts achieve their high ORR activity by increasing the Pt specific activity at the expense of a lower electrochemically active surface area (ECSA). In the potential region controlled by kinetics, such a lower ECSA is counterbalanced by the high specific activity. At higher overpotentials, however, which are often applied in real systems, a low ECSA leads to limitations in the reaction rate not by kinetics, but by mass transport. Here we report on self-supported platinum–cobalt oxide networks that combine a high specific activity with a high ECSA. The high ECSA is achieved by a platinum–cobalt oxide bone nanostructure that exhibits unprecedentedly high mass activity for self-supported ORR catalysts. This concept promises a stable fuel-cell operation at high temperature, high current density and low humidification.

AB - Several concepts for platinum-based catalysts for the oxygen reduction reaction (ORR) are presented that exceed the US Department of Energy targets for Pt-related ORR mass activity. Most concepts achieve their high ORR activity by increasing the Pt specific activity at the expense of a lower electrochemically active surface area (ECSA). In the potential region controlled by kinetics, such a lower ECSA is counterbalanced by the high specific activity. At higher overpotentials, however, which are often applied in real systems, a low ECSA leads to limitations in the reaction rate not by kinetics, but by mass transport. Here we report on self-supported platinum–cobalt oxide networks that combine a high specific activity with a high ECSA. The high ECSA is achieved by a platinum–cobalt oxide bone nanostructure that exhibits unprecedentedly high mass activity for self-supported ORR catalysts. This concept promises a stable fuel-cell operation at high temperature, high current density and low humidification.

U2 - 10.1038/s41563-020-0775-8

DO - 10.1038/s41563-020-0775-8

M3 - Journal article

C2 - 32839587

AN - SCOPUS:85089726908

VL - 20

SP - 208

EP - 213

JO - Nature Materials

JF - Nature Materials

SN - 1476-1122

ER -

ID: 248030240