Abstract
| Original language | English |
|---|---|
| Journal | ACS Energy Letters |
| Volume | 3 |
| Pages (from-to) | 2045-2051 |
| Number of pages | 7 |
| DOIs | |
| Publication status | Published - 2018 |
Cite this
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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 › Research › 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 -