Cited by 113Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceCO2 Reduction Techniques and Catalysts

Ru@RuO2 Core‐Shell Nanorods: A Highly Active and Stable Bifunctional Catalyst for Oxygen Evolution and Hydrogen Evolution Reactions

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Jiang, Rongzhong, Tran, Dat T., Li, Jiangtian, Chu, Deryn·2019·ENERGY & ENVIRONMENTAL MATERIALS

Abstract

Ru@RuO 2 core‐shell nanorods were successfully synthesized by heat‐treating Ru nanorods with air oxidation through an accurate control of the temperature and time. The structure, composition, dimension, and adsorption property of the core‐shell nanorods were well characterized with XRD and TEM. The catalytic activity and stability were electrochemically evaluated with a rotating disk electrode, a rotating ring‐disk electrode, and chronopotentiometric methods. The Ru@RuO 2 nanorods reveal excellent bifunctional catalytic activity and robust stability for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). The overpotentials for OER and HER are 320 mV and 137 mV at the current density of 10 mA cm−2, respectively. The catalytic activity of Ru@RuO 2 nanorods for OER is 6.5 times higher than that of the state‐of‐the‐art catalyst IrO 2 according to the catalytic current density measured at 1.60 V (versus RHE). The catalytic activity of Ru@RuO 2 nanorods for HER is comparable to 40% Pt/C by comparing the catalytic current densities at −0.2 V.

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Sorted by citations

Authors
Jiang, R., Tran, D. T., Li, J., & Chu, D.
Affiliations
DEVCOM Army Research Laboratory (US)
Corresponding author
Jiang, Rongzhong
Venue
ENERGY & ENVIRONMENTAL MATERIALS
Publisher
Wiley
Published
2019-04-21
Volume
2
Issue
3
Pages
201-208
ISSN
  • 2575-0348 (ISSN-L)
  • 2575-0356
OpenAlex
W2940622229
Cited by
112
References
49
Citations by year
2026: 13 · 2025: 20 · 2024: 17 · 2023: 20 · 2022: 17 · 2021: 17 · 2020: 8
FWCI
2.23
Type
journal article
Language
en
Open access
Locations
Energy & environment materials (publishedVersion, public-domain)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Materials Science › Materials Chemistry › Catalytic Processes in Materials Science
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
Keywords
oxygen evolution reaction, hydrogen evolution reaction, bifunctional electrocatalysts, catalyst stability, overpotential, water splitting

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