Skip to content

Research at St Andrews

Demonstration of chemistry at a point through restructuring and catalytic activation at anchored nanoparticles

Research output: Contribution to journalArticle

Author(s)

Dragos Neagu, Evangelos I. Papaioannou, Wan K. W. Ramli, David N. Miller, Billy J. Murdoch, Hervé Ménard, Ahmed Umar, Anders J. Barlow, Peter J. Cumpson, John T. S. Irvine, Ian S. Metcalfe

School/Research organisations

Abstract

Metal nanoparticles prepared by exsolution at the surface of perovskite oxides have been recently shown to enable new dimensions in catalysis and energy conversion and storage technologies owing to their socketed, well-anchored structure. Here we show that contrary to general belief, exsolved particles do not necessarily re-dissolve back into the underlying perovskite upon oxidation. Instead, they may remain pinned to their initial locations, allowing one to subject them to further chemical transformations to alter their composition, structure and functionality dramatically, while preserving their initial spatial arrangement. We refer to this concept as chemistry at a point and illustrate it by tracking individual nanoparticles throughout various chemical transformations. We demonstrate its remarkable practical utility by preparing a nanostructured earth abundant metal catalyst which rivals platinum on a weight basis over hundreds of hours of operation. Our concept enables the design of compositionally diverse confined oxide particles with superior stability and catalytic reactivity.
Close

Details

Original languageEnglish
Article number1855
JournalNature Communications
Volume8
DOIs
Publication statusPublished - 30 Nov 2017

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Lattice strain-enhanced exsolution of nanoparticles in thin films

    Han, H., Park, J., Nam, S. Y., Choi, G. M., Parkin, S. S. P., Jang, H. M. & Irvine, J. T. S., 1 Dec 2019, In : Nature Communications. 10, 8 p., 1471.

    Research output: Contribution to journalArticle

  2. Hexagonal perovskite related oxide ion conductor Ba3NbMoO8.5: phase transition, temperature evolution of the local structure and properties

    Chambers, M. S., McCombie, K. S., Auckett, J. E., McLaughlin, A. C., Irvine, J. T. S., Chater, P. A., Evans, J. S. O. & Evans, I. R., 28 Nov 2019, In : Journal of Materials Chemistry. 7, 44, p. 25503-25510 8 p.

    Research output: Contribution to journalArticle

  3. Oxygen storage capacity and thermal stability of brownmillerite-type Ca2(Al1-xGax)MnO5+δ oxides

    Huang, X., Ni, C. & Irvine, J. T. S., 25 Nov 2019, In : Journal of Alloys and Compounds. 810, 151865.

    Research output: Contribution to journalArticle

  4. Nanostructured carbons containing FeNi/NiFe2O4 supported over N-doped carbon nanofibers for oxygen reduction and evolution reactions

    Aziz, I., Lee, J. G., Duran, H., Kirchhoff, K., Baker, R. T., Irvine, J. T. S. & Arshad, S. N., 11 Nov 2019, In : RSC Advances. 9, 63, p. 36586-36599 14 p.

    Research output: Contribution to journalArticle

  5. B-site doped perovskite ferrate for efficient anode of a solid oxide fuel cell with in situ metal exsolution

    Ni, C., Zeng, Q., He, D., Peng, L., Xie, D-T., Irvine, J., Duan, S. & Ni, J-P., 29 Oct 2019, In : Journal of Materials Chemistry. In press

    Research output: Contribution to journalArticle

Related by journal

  1. Nature Communications (Journal)

    Andy Gardner (Reviewer)
    Feb 2018

    Activity: Publication peer-review and editorial work typesPeer review of manuscripts

Related by journal

  1. A GABAergic Maf-expressing interneuron subset regulates the speed of locomotion in Drosophila

    Babski, H., Jovanic, T., Surel, C., Yoshikawa, S., Zwart, M. F., Valmier, J., Thomas, J. B., Enriquez, J., Carroll, P. & Garcès, A., 22 Oct 2019, In : Nature Communications. 10, 17 p., 4796.

    Research output: Contribution to journalArticle

  2. A family of Type VI secretion system effector proteins that form ion-selective pores

    Mariano, G., Trunk, K., Williams, D. J., Monlezun, L., Strah, H., Pitt, S. J. & Coulthurst, S. J., 2 Dec 2019, In : Nature Communications. 10, p. 1-15 15 p., 5484.

    Research output: Contribution to journalArticle

  3. A therapeutic antibody targeting osteoprotegerin attenuates severe experimental pulmonary arterial hypertension

    Arnold, N. D., Pickworth, J. A., West, L. E., Dawson, S., Carvalho, J. A., Casbolt, H., Braithwaite, A. T., Iremonger, J., Renshall, L., Germaschewski, V., McCourt, M., Bland-Ward, P., Kowash, H., Hameed, A. G., Rothman, A. M. K., Frid, M. G., Roger Thompson, A. A., Evans, H. R., Southwood, M., Morrell, N. W. & 7 others, Crossman, D. C., Whyte, M. K. B., Stenmark, K. R., Newman, C. M., Kiely, D. G., Francis, S. E. & Lawrie, A., 15 Nov 2019, In : Nature Communications. 10, 18 p., 5183.

    Research output: Contribution to journalArticle

  4. Allosteric activation of an ion channel triggered by modification of mechanosensitive nano-pockets

    Kapsalis, C., Wang, B., El Mkami, H., Pitt, S. J., Schnell, J., Smith, T. K., Lippiat, J., Bode, B. E. & Pliotas, C., 10 Oct 2019, In : Nature Communications. 10, 14 p., 4619.

    Research output: Contribution to journalArticle

  5. An oxalate cathode for lithium ion batteries with combined cationic and polyanionic redox

    Yao, W., Armstrong, A. R., Zhou, X., Sougrati, M-T., Kidkhunthod, P., Tunmee, S., Sun, C., Sattayaporn, S., Lightfoot, P., Ji, B., Jiang, C., Wu, N., Tang, Y. & Cheng, H-M., 2 Aug 2019, In : Nature Communications. 10, 9 p., 3483.

    Research output: Contribution to journalArticle

ID: 251475815

Top