Enhanced hot electron generation by inverse metal-oxide interfaces on catalytic nanodiode

Faraday Discussions
Hyosun LeeJeong Young Park

Abstract

Identifying the electronic behavior of metal-oxide interfaces is essential for understanding the origin of catalytic properties and for engineering catalyst structures with the desired reactivity. For a mechanistic understanding of hot electron dynamics at inverse oxide/metal interfaces, we employed a new catalytic nanodiode by combining Co3O4 nanocubes (NCs) with a Pt/TiO2 nanodiode that exhibits nanoscale metal-oxide interfaces. We show that the chemicurrent, which is well correlated with the catalytic activity, is enhanced at the inverse oxide/metal (CoO/Pt) interfaces during H2 oxidation. Based on quantitative visualization of the electronic transfer efficiency with chemicurrent yield, we show that electronic perturbation of oxide/metal interfacial sites not only promotes the generation of hot electrons, but improves catalytic activity.

References

Nov 14, 2008·Angewandte Chemie·Gabor A Somorjai, Jeong Y Park
May 25, 2013·Science·Myoung Hwan OhTaeghwan Hyeon
Oct 5, 2013·Journal of the American Chemical Society·Kwangjin AnGabor A Somorjai
Dec 21, 2013·Journal of the American Chemical Society·Shaunak MukherjeeNaomi J Halas
Mar 21, 2015·Chemical Reviews·Jeong Young ParkGabor A Somorjai
May 12, 2015·Chemical Communications : Chem Comm·Kamran QadirJeong Young Park
May 28, 2015·Angewandte Chemie·Florencia CalazaHans-Joachim Freund
Jul 17, 2015·Accounts of Chemical Research·Jeong Young ParkIevgen I Nedrygailov
Jun 22, 2016·The Journal of Physical Chemistry Letters·José A RodriguezJavier Fernández-Sanz
Jan 18, 2017·Nature Communications·Guofeng ZhaoYadong Li
Mar 11, 2017·Nature Chemistry·John C MatsubuPhillip Christopher
Jun 27, 2017·Journal of the American Chemical Society·Shyam KattelJingguang G Chen
Jul 25, 2017·Nature Nanotechnology·Umar AslamSuljo Linic
Dec 1, 2017·Chemical Reviews·Yuchao ZhangWei David Wei
Jul 11, 2018·Chemical Communications : Chem Comm·Kalyan C GoddetiJeong Young Park

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Citations

Jan 6, 2021·Nature Communications·Si Woo LeeJeong Young Park
Feb 16, 2021·ACS Applied Materials & Interfaces·Beomjoon JeonJeong Young Park

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Methods Mentioned

BETA
transmission electron microscopy
X-ray
scanning electron microscopy
transmission

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