Kinetic‐Modulated Crystal Phase of Ru for Hydrogen Oxidation
Abstract
Crystal‐phase‐engineering provides a powerful strategy for regulating the catalytic performance yet remains great challenge. Herein, the kinetic‐modulated crystal‐phase‐control of Ru nanosheet assemblies (Ru NAs) is demonstrated by simply altering the concentration of citric acid (CA). Detailed experimental results reveal that high concentration of CA retards the growth kinetics and thus leads to the formation of metastable face‐centered cubic (fcc) Ru NAs, while low concentration of CA results in the fast growth kinetics and the preferential formation of Ru NAs with stable hexagonal close packed (hcp) phase. Moreover, Ru NAs with different phases are used as catalyst for hydrogen oxidation reaction (HOR) to evaluate the effects of crystal phase on catalytic performance. Impressively, Ru NAs with fcc phase display a mass activity of 2.75 A mg Ru −1 at 50 mV, which is much higher than those of Ru NAs with fcc/hcp (1.02 A mg Ru −1 ) and hcp (0.74 A mg Ru −1 ) phases. Theoretical calculations show that fcc Ru NAs display weaker adsorption toward * H and lower energy barrier toward the rate‐determining step (RDS) during HOR. This work provides a facile strategy for regulating the crystal phase of Ru nanocrystals, which may attract rapid interests of researchers in materials, chemistry, and catalysis.
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Pure fcc phase Ru aerogel could not be obtained by simply increasing the concentration of RuCl3.
“However, pure fcc phase Ru aerogel could not be obtained by simply increasing the concentration of RuCl3.[ 20 , 28 ]”
From Tuning the Adsorption of H and OH on Ruthenium Aerogel to Boost the Alkaline Hydrogen Evolution (2025) · cites this paper as [28]
Cites
Improving the hydrogen oxidation reaction rate by promotion of hydroxyl adsorption
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Lin, F., Luo, H., Li, L., Lv, F., Chen, Y., Zhang, Q., Han, X., Wang, D., Li, M., Luo, Y., et al. (2024) · Nature Synthesis · doi:10.1038/s44160-024-00685-4 · Cited by 66 · see citing works
Tuning the Adsorption of H and OH on Ruthenium Aerogel to Boost the Alkaline Hydrogen Evolution
Liu, Y., Wang, L., Shamraienko, V., Röder, F., Wrzesińska‐Lashkova, A., Vaynzof, Y., Zhang, X., & Eychmüller, A. (2025) · Angewandte Chemie International Edition · doi:10.1002/anie.202513970 · Cited by 11 · see citing works
- Authors
- Zhang, J., Cao, M., Li, X., Xu, Y., Zhao, W., Chen, L., Chang, Y., Pao, C., Hu, Z., & Huang, X.
- Affiliations
- Xiamen University (CN)
- Chinese Academy of Sciences (CN)
- Guangdong University of Technology (CN)
- State Power Investment Corporation (China) (CN)
- National Synchrotron Radiation Research Center (TW)
- Max Planck Institute for Chemical Physics of Solids (DE)
- Corresponding author
- Xu, Yong
- Chen, Ligang
- Huang, Xiaoqing
- ORCID
- Venue
- Small
- Publisher
- Wiley
- Published
- 2023-02-08
- Volume
- 19
- Issue
- 19
- Pages
- e2207038-e2207038
- ISSN
- 1613-6810 (ISSN-L)
- 1613-6829
- OpenAlex
- W4319656970
- Cited by
- 39
- References
- 3
- Citations by year
- 2026: 8 · 2025: 15 · 2024: 15 · 2023: 1
- FWCI
- 1.86
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Small (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Natural Science Foundation of China (22025108, U21A20327, 22121001)
- China Postdoctoral Science Foundation (2020M682083)
- Natural Science Foundation of Guangdong Province for Distinguished Young Scholars (2021B1515020081)
- 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 › Chemistry › Organic Chemistry › Nanomaterials for catalytic reactions
- Keywords
- crystal phase control, hydrogen oxidation, citric acid concentration, growth kinetics, phase engineering, hydrogen adsorption, rate-determining step, electrocatalysis
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