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|Title:||Unusual synergistic effect in layered Ruddlesden−Popper oxide enables ultrafast hydrogen evolution||Authors:||Zhu, Yinlong
Tahini, Hassan A.
Smith, Sean C.
|Issue Date:||2019||Source:||Zhu, Y., Tahini, H. A., Hu, Z., Dai, J., Chen, Y., Sun, H., . . . Shao, Z. (2019). Unusual synergistic effect in layered Ruddlesden−Popper oxide enables ultrafast hydrogen evolution. Nature Communications, 10(1), 149-. doi:10.1038/s41467-018-08117-6||Series/Report no.:||Nature Communications||Abstract:||Efficient electrocatalysts for hydrogen evolution reaction are key to realize clean hydrogen production through water splitting. As an important family of functional materials, transition metal oxides are generally believed inactive towards hydrogen evolution reaction, although many of them show high activity for oxygen evolution reaction. Here we report the remarkable electrocatalytic activity for hydrogen evolution reaction of a layered metal oxide, Ruddlesden−Popper-type Sr2RuO4 with alternative perovskite layer and rock-salt SrO layer, in an alkaline solution, which is comparable to those of the best electrocatalysts ever reported. By theoretical calculations, such excellent activity is attributed mainly to an unusual synergistic effect in the layered structure, whereby the (001) SrO-terminated surface cleaved in rock-salt layer facilitates a barrier-free water dissociation while the active apical oxygen site in perovskite layer promotes favorable hydrogen adsorption and evolution. Moreover, the activity of such layered oxide can be further improved by electrochemistry-induced activation.||URI:||https://hdl.handle.net/10356/89908
|DOI:||10.1038/s41467-018-08117-6||Rights:||© 2019 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||MSE Journal Articles|
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