Trends in Activity and Dissolution on RuO2 under Oxygen Evolution Conditions: Particles versus Well-Defined Extended Surfaces

Claudie Roy; Reshma R. Rao; Kelsey A. Stoerzinger; Jonathan Hwang; Jan Rossmeisl; Ib Chorkendorff; Yang Shao-Horn; Ifan E. L. Stephens

doi:10.1021/acsenergylett.8b01178

Trends in Activity and Dissolution on RuO2 under Oxygen Evolution Conditions: Particles versus Well-Defined Extended Surfaces

Claudie Roy, Reshma R. Rao, Kelsey A. Stoerzinger, Jonathan Hwang, Jan Rossmeisl, Ib Chorkendorff, Yang Shao-Horn, Ifan E. L. Stephens

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Abstract

Rutile RuO2 catalysts are the most active pure metal oxides for oxygen evolution; however, they are also unstable toward dissolution. Herein, we study the catalytic activity and stability of oriented thin films of RuO2 with (111), (101), and (001) orientations, in comparison to a (110) single crystal and commercial nanoparticles. These surfaces were all tested in aqueous solutions of 0.05 M H2SO4. The initial catalyst activity ranked as follows: (001) > (101) > (111) ≈ (110). We complemented our activity data with inductively coupled plasma mass spectroscopy, to measure Ru dissolution products occurring in parallel to oxygen evolution. In contrast to earlier reports, we find that, under our experimental conditions, there is no correlation between the activity and stability.

Original language	English
Journal	ACS Energy Letters
Volume	3
Pages (from-to)	2045-2051
Number of pages	7
DOIs	https://doi.org/10.1021/acsenergylett.8b01178
Publication status	Published - 2018

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@article{d1ebd59e20cd41fa874ad98ecfabf9aa,

title = "Trends in Activity and Dissolution on RuO2 under Oxygen Evolution Conditions: Particles versus Well-Defined Extended Surfaces",

abstract = "Rutile RuO2 catalysts are the most active pure metal oxides for oxygen evolution; however, they are also unstable toward dissolution. Herein, we study the catalytic activity and stability of oriented thin films of RuO2 with (111), (101), and (001) orientations, in comparison to a (110) single crystal and commercial nanoparticles. These surfaces were all tested in aqueous solutions of 0.05 M H2SO4. The initial catalyst activity ranked as follows: (001) > (101) > (111) ≈ (110). We complemented our activity data with inductively coupled plasma mass spectroscopy, to measure Ru dissolution products occurring in parallel to oxygen evolution. In contrast to earlier reports, we find that, under our experimental conditions, there is no correlation between the activity and stability.",

author = "Claudie Roy and Rao, {Reshma R.} and Stoerzinger, {Kelsey A.} and Jonathan Hwang and Jan Rossmeisl and Ib Chorkendorff and Yang Shao-Horn and Stephens, {Ifan E. L.}",

year = "2018",

doi = "10.1021/acsenergylett.8b01178",

language = "English",

volume = "3",

pages = "2045--2051",

journal = "ACS Energy Letters",

issn = "2380-8195",

publisher = "American Chemical Society",

}

Trends in Activity and Dissolution on RuO2 under Oxygen Evolution Conditions: Particles versus Well-Defined Extended Surfaces. / Roy, Claudie; Rao, Reshma R.; Stoerzinger, Kelsey A.; Hwang, Jonathan; Rossmeisl, Jan; Chorkendorff, Ib; Shao-Horn, Yang; Stephens, Ifan E. L.

In: ACS Energy Letters, Vol. 3, 2018, p. 2045-2051.

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

TY - JOUR

T1 - Trends in Activity and Dissolution on RuO2 under Oxygen Evolution Conditions: Particles versus Well-Defined Extended Surfaces

AU - Roy, Claudie

AU - Rao, Reshma R.

AU - Stoerzinger, Kelsey A.

AU - Hwang, Jonathan

AU - Rossmeisl, Jan

AU - Chorkendorff, Ib

AU - Shao-Horn, Yang

AU - Stephens, Ifan E. L.

PY - 2018

Y1 - 2018

N2 - Rutile RuO2 catalysts are the most active pure metal oxides for oxygen evolution; however, they are also unstable toward dissolution. Herein, we study the catalytic activity and stability of oriented thin films of RuO2 with (111), (101), and (001) orientations, in comparison to a (110) single crystal and commercial nanoparticles. These surfaces were all tested in aqueous solutions of 0.05 M H2SO4. The initial catalyst activity ranked as follows: (001) > (101) > (111) ≈ (110). We complemented our activity data with inductively coupled plasma mass spectroscopy, to measure Ru dissolution products occurring in parallel to oxygen evolution. In contrast to earlier reports, we find that, under our experimental conditions, there is no correlation between the activity and stability.

AB - Rutile RuO2 catalysts are the most active pure metal oxides for oxygen evolution; however, they are also unstable toward dissolution. Herein, we study the catalytic activity and stability of oriented thin films of RuO2 with (111), (101), and (001) orientations, in comparison to a (110) single crystal and commercial nanoparticles. These surfaces were all tested in aqueous solutions of 0.05 M H2SO4. The initial catalyst activity ranked as follows: (001) > (101) > (111) ≈ (110). We complemented our activity data with inductively coupled plasma mass spectroscopy, to measure Ru dissolution products occurring in parallel to oxygen evolution. In contrast to earlier reports, we find that, under our experimental conditions, there is no correlation between the activity and stability.

U2 - 10.1021/acsenergylett.8b01178

DO - 10.1021/acsenergylett.8b01178

M3 - Journal article

VL - 3

SP - 2045

EP - 2051

JO - ACS Energy Letters

JF - ACS Energy Letters

SN - 2380-8195

ER -

Trends in Activity and Dissolution on RuO2 under Oxygen Evolution Conditions: Particles versus Well-Defined Extended Surfaces

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