A Robust PtNi Nanoframe/N‐Doped Graphene Aerogel Electrocatalyst with Both High Activity and Stability
Abstract
Insufficient catalytic activity and stability and high cost are the barriers for Pt-based electrocatalysts in wide practical applications. Herein, a hierarchically porous PtNi nanoframe/N-doped graphene aerogel (PtNiNF-NGA) electrocatalyst with outstanding performance toward methanol oxidation reaction (MOR) in acid electrolyte has been developed via facile tert-butanol-assisted structure reconfiguration. The ensemble of high-alloying-degree-modulated electronic structure and correspondingly the optimum MOR reaction pathway, the structure superiorities of hierarchical porosity, thin edges, Pt-rich corners, and the anchoring effect of the NGA, endow the PtNiNF-NGA with both prominent electrocatalytic activity and stability. The mass and specific activity (1647 mA mg Pt -1 , 3.8 mA cm -2 ) of the PtNiNF-NGA are 5.8 and 7.8 times higher than those of commercial Pt/C. It exhibits exceptional stability under a 5-hour chronoamperometry test and 2200-cycle cyclic voltammetry scanning.
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GA has a large accessible specific surface area to anchor a larger degree of dispersive Pt nanoparticles.
“This is because GA has a large accessible specific surface area to anchor a larger degree of dispersive Pt nanoparticles [19–21].”
From Synergistic interaction of monodisperse Pt nanoparticles with defect‐rich graphene aerogel for efficient acidic hydrogen evolution (2025) · cites this paper as [20]
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- Authors
- Yang, J., Hübner, R., Zhang, J., Wan, H., Zheng, Y., Wang, H., Qi, H., He, L., Li, Y., Dubale, A. A., Sun, Y., Liu, Y., Peng, D., Meng, Y., Zheng, Z., Rossmeisl, J., & Liu, W.
- Affiliations
- Sun Yat-sen University (CN)
- Helmholtz-Zentrum Dresden-Rossendorf (DE)
- Dalian Institute of Chemical Physics (CN)
- University of Copenhagen (DK)
- Universität Ulm (DE)
- South China Normal University (CN)
- Corresponding author
- Liu, Wei
- ORCID
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2021-03-17
- Volume
- 60
- Issue
- 17
- Pages
- 9590-9597
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W3126602185
- Cited by
- 166
- References
- 3
- Citations by year
- 2026: 22 · 2025: 26 · 2024: 38 · 2023: 37 · 2022: 28 · 2021: 15
- FWCI
- 5.53
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Angewandte Chemie International Edition (publishedVersion)
- PubMed (publishedVersion)
- Research at the University of Copenhagen (University of Copenhagen) (publishedVersion)
- Funders
- National Natural Science Foundation of China (51801238, 51803241, 51873236, 21701168, 51803239)
- Natural Science Foundation of Guangdong Province (2018A030313458)
- Fundamental Research Funds for the Central Universities (19lgpy09)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
- Physical Sciences › Chemistry › Analytical Chemistry › Electrochemical sensors and biosensors
- Keywords
- methanol oxidation, electrocatalyst stability, hierarchical porosity, electronic structure modulation, reaction pathways, acidic electrolyte, mass and specific activity
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