Direct and continuous strain control of catalysts with tunable battery electrode materials

Haotian Wang; Shicheng Xu; Charlie Tsai; Yuzhang Li; Chong Liu; Jie Zhao; Yayuan Liu; Hongyuan Yuan; Frank Abild-Pedersen; Fritz B. Prinz; Jens K. Nørskov; Yi Cui

doi:10.1126/science.aaf7680

Direct and continuous strain control of catalysts with tunable battery electrode materials

Haotian Wang, Shicheng Xu, Charlie Tsai, Yuzhang Li, Chong Liu, Jie Zhao, Yayuan Liu, Hongyuan Yuan, Frank Abild-Pedersen, Fritz B. Prinz, Jens K. Nørskov, Yi Cui^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

We report a method for using battery electrode materials to directly and continuously control the lattice strain of platinum (Pt) catalyst and thus tune its catalytic activity for the oxygen reduction reaction (ORR). Whereas the common approach of using metal overlayers introduces ligand effects in addition to strain, by electrochemically switching between the charging and discharging status of battery electrodes the change in volume can be precisely controlled to induce either compressive or tensile strain on supported catalysts. Lattice compression and tension induced by the lithium cobalt oxide substrate of ∼5% were directly observed in individual Pt nanoparticles with aberration-corrected transmission electron microscopy. We observed 90% enhancement or 40% suppression in Pt ORR activity under compression or tension, respectively, which is consistent with theoretical predictions.

Original language	English
Journal	Science
Volume	354
Issue number	6315
Pages (from-to)	1031-1036
ISSN	0036-8075
DOIs	https://doi.org/10.1126/science.aaf7680
Publication status	Published - 2016
Externally published	Yes

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title = "Direct and continuous strain control of catalysts with tunable battery electrode materials",

abstract = "We report a method for using battery electrode materials to directly and continuously control the lattice strain of platinum (Pt) catalyst and thus tune its catalytic activity for the oxygen reduction reaction (ORR). Whereas the common approach of using metal overlayers introduces ligand effects in addition to strain, by electrochemically switching between the charging and discharging status of battery electrodes the change in volume can be precisely controlled to induce either compressive or tensile strain on supported catalysts. Lattice compression and tension induced by the lithium cobalt oxide substrate of ∼5% were directly observed in individual Pt nanoparticles with aberration-corrected transmission electron microscopy. We observed 90% enhancement or 40% suppression in Pt ORR activity under compression or tension, respectively, which is consistent with theoretical predictions.",

author = "Haotian Wang and Shicheng Xu and Charlie Tsai and Yuzhang Li and Chong Liu and Jie Zhao and Yayuan Liu and Hongyuan Yuan and Frank Abild-Pedersen and Prinz, {Fritz B.} and N{\o}rskov, {Jens K.} and Yi Cui",

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doi = "10.1126/science.aaf7680",

language = "English",

volume = "354",

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TY - JOUR

T1 - Direct and continuous strain control of catalysts with tunable battery electrode materials

AU - Wang, Haotian

AU - Xu, Shicheng

AU - Tsai, Charlie

AU - Li, Yuzhang

AU - Liu, Chong

AU - Zhao, Jie

AU - Liu, Yayuan

AU - Yuan, Hongyuan

AU - Abild-Pedersen, Frank

AU - Prinz, Fritz B.

AU - Nørskov, Jens K.

AU - Cui, Yi

PY - 2016

Y1 - 2016

N2 - We report a method for using battery electrode materials to directly and continuously control the lattice strain of platinum (Pt) catalyst and thus tune its catalytic activity for the oxygen reduction reaction (ORR). Whereas the common approach of using metal overlayers introduces ligand effects in addition to strain, by electrochemically switching between the charging and discharging status of battery electrodes the change in volume can be precisely controlled to induce either compressive or tensile strain on supported catalysts. Lattice compression and tension induced by the lithium cobalt oxide substrate of ∼5% were directly observed in individual Pt nanoparticles with aberration-corrected transmission electron microscopy. We observed 90% enhancement or 40% suppression in Pt ORR activity under compression or tension, respectively, which is consistent with theoretical predictions.

AB - We report a method for using battery electrode materials to directly and continuously control the lattice strain of platinum (Pt) catalyst and thus tune its catalytic activity for the oxygen reduction reaction (ORR). Whereas the common approach of using metal overlayers introduces ligand effects in addition to strain, by electrochemically switching between the charging and discharging status of battery electrodes the change in volume can be precisely controlled to induce either compressive or tensile strain on supported catalysts. Lattice compression and tension induced by the lithium cobalt oxide substrate of ∼5% were directly observed in individual Pt nanoparticles with aberration-corrected transmission electron microscopy. We observed 90% enhancement or 40% suppression in Pt ORR activity under compression or tension, respectively, which is consistent with theoretical predictions.

U2 - 10.1126/science.aaf7680

DO - 10.1126/science.aaf7680

M3 - Journal article

AN - SCOPUS:84997190914

SN - 0036-8075

VL - 354

SP - 1031

EP - 1036

JO - Science

JF - Science

IS - 6315

ER -

Direct and continuous strain control of catalysts with tunable battery electrode materials

Abstract

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