Bimetallic Doped RuO2 with Manganese and Iron as Electrocatalysts for Favorable Oxygen Evolution Reaction Performance
Synthesizing oxygen evolution reaction (OER) catalysts with enhanced activity by codoping has been proven to be a feasible approach for the efficient use of noble metals via renewing their basic intrinsic properties. In continuation of the research in codoping, we prepare a ruthenium-based bimetalli...
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| Published in | ACS omega Vol. 5; no. 13; pp. 7342 - 7347 |
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| Main Authors | , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
American Chemical Society
07.04.2020
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| Online Access | Get full text |
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| Abstract | Synthesizing oxygen evolution reaction (OER) catalysts with enhanced activity by codoping has been proven to be a feasible approach for the efficient use of noble metals via renewing their basic intrinsic properties. In continuation of the research in codoping, we prepare a ruthenium-based bimetallic doped catalyst Mn x Fe y Ru1–x–y O2 with an outstanding OER activity as compared to pure RuO2, one of the state-of-the-art OER catalysts. The synthesized codoped RuO2 with a Mn/Fe molar ratio of 1 reflected a Tafel slope of only 41 mV dec–1, which is appreciably lower than 64 mV dec–1 for pure RuO2. The X-ray photoelectron spectroscopy (XPS) performed reveals that oxygen vacancy and manganese valency are the key factors of the OER activity for codoped catalysts. |
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| AbstractList | Synthesizing oxygen evolution reaction
(OER) catalysts with enhanced
activity by codoping has been proven to be a feasible approach for
the efficient use of noble metals via renewing their basic intrinsic
properties. In continuation of the research in codoping, we prepare
a ruthenium-based bimetallic doped catalyst Mn
x
Fe
y
Ru
1–
x
–
y
O
2
with an outstanding
OER activity as compared to pure RuO
2
, one of the state-of-the-art
OER catalysts. The synthesized codoped RuO
2
with a Mn/Fe
molar ratio of 1 reflected a Tafel slope of only 41 mV dec
–1
, which is appreciably lower than 64 mV dec
–1
for
pure RuO
2
. The X-ray photoelectron spectroscopy (XPS) performed
reveals that oxygen vacancy and manganese valency are the key factors
of the OER activity for codoped catalysts. Synthesizing oxygen evolution reaction (OER) catalysts with enhanced activity by codoping has been proven to be a feasible approach for the efficient use of noble metals via renewing their basic intrinsic properties. In continuation of the research in codoping, we prepare a ruthenium-based bimetallic doped catalyst Mn x Fe y Ru1–x–y O2 with an outstanding OER activity as compared to pure RuO2, one of the state-of-the-art OER catalysts. The synthesized codoped RuO2 with a Mn/Fe molar ratio of 1 reflected a Tafel slope of only 41 mV dec–1, which is appreciably lower than 64 mV dec–1 for pure RuO2. The X-ray photoelectron spectroscopy (XPS) performed reveals that oxygen vacancy and manganese valency are the key factors of the OER activity for codoped catalysts. Synthesizing oxygen evolution reaction (OER) catalysts with enhanced activity by codoping has been proven to be a feasible approach for the efficient use of noble metals via renewing their basic intrinsic properties. In continuation of the research in codoping, we prepare a ruthenium-based bimetallic doped catalyst Mn x Fe y Ru1-x-y O2 with an outstanding OER activity as compared to pure RuO2, one of the state-of-the-art OER catalysts. The synthesized codoped RuO2 with a Mn/Fe molar ratio of 1 reflected a Tafel slope of only 41 mV dec-1, which is appreciably lower than 64 mV dec-1 for pure RuO2. The X-ray photoelectron spectroscopy (XPS) performed reveals that oxygen vacancy and manganese valency are the key factors of the OER activity for codoped catalysts.Synthesizing oxygen evolution reaction (OER) catalysts with enhanced activity by codoping has been proven to be a feasible approach for the efficient use of noble metals via renewing their basic intrinsic properties. In continuation of the research in codoping, we prepare a ruthenium-based bimetallic doped catalyst Mn x Fe y Ru1-x-y O2 with an outstanding OER activity as compared to pure RuO2, one of the state-of-the-art OER catalysts. The synthesized codoped RuO2 with a Mn/Fe molar ratio of 1 reflected a Tafel slope of only 41 mV dec-1, which is appreciably lower than 64 mV dec-1 for pure RuO2. The X-ray photoelectron spectroscopy (XPS) performed reveals that oxygen vacancy and manganese valency are the key factors of the OER activity for codoped catalysts. |
| Author | Sun, Wei Zaman, Waqas Qamar Wu, Yiyi Tariq, Muhammad Yang, Ji Zhou, Zhenhua |
| AuthorAffiliation | Institute of Environmental Science and Engineering, School of Civil and Environmental Engineering State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Processes, School of Resources and Environmental Engineering Shanghai Institute of Pollution Control and Ecological Security |
| AuthorAffiliation_xml | – name: State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Processes, School of Resources and Environmental Engineering – name: Shanghai Institute of Pollution Control and Ecological Security – name: Institute of Environmental Science and Engineering, School of Civil and Environmental Engineering |
| Author_xml | – sequence: 1 givenname: Yiyi surname: Wu fullname: Wu, Yiyi organization: State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Processes, School of Resources and Environmental Engineering – sequence: 2 givenname: Muhammad orcidid: 0000-0003-3999-9758 surname: Tariq fullname: Tariq, Muhammad organization: State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Processes, School of Resources and Environmental Engineering – sequence: 3 givenname: Waqas Qamar surname: Zaman fullname: Zaman, Waqas Qamar organization: Institute of Environmental Science and Engineering, School of Civil and Environmental Engineering – sequence: 4 givenname: Wei surname: Sun fullname: Sun, Wei organization: State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Processes, School of Resources and Environmental Engineering – sequence: 5 givenname: Zhenhua surname: Zhou fullname: Zhou, Zhenhua organization: State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Processes, School of Resources and Environmental Engineering – sequence: 6 givenname: Ji orcidid: 0000-0002-5209-7436 surname: Yang fullname: Yang, Ji email: yangji@ecust.edu.cn organization: Shanghai Institute of Pollution Control and Ecological Security |
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| Title | Bimetallic Doped RuO2 with Manganese and Iron as Electrocatalysts for Favorable Oxygen Evolution Reaction Performance |
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