Single‐Atom Catalyst of Platinum Supported on Titanium Nitride for Selective Electrochemical Reactions
Abstract
As a catalyst, single‐atom platinum may provide an ideal structure for platinum minimization. Herein, a single‐atom catalyst of platinum supported on titanium nitride nanoparticles were successfully prepared with the aid of chlorine ligands. Unlike platinum nanoparticles, the single‐atom active sites predominantly produced hydrogen peroxide in the electrochemical oxygen reduction with the highest mass activity reported so far. The electrocatalytic oxidation of small organic molecules, such as formic acid and methanol, also exhibited unique selectivity on the single‐atom platinum catalyst. A lack of platinum ensemble sites changed the reaction pathway for the oxygen‐reduction reaction toward a two‐electron pathway and formic acid oxidation toward direct dehydrogenation, and also induced no activity for the methanol oxidation. This work demonstrates that single‐atom platinum can be an efficient electrocatalyst with high mass activity and unique selectivity.
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Strong metal-support interaction affects the electronic structure of a metal atom in SACs greatly, which then determines catalytic properties of the SACs.
“A strong metal–support interaction affects the electronic structure of a metal atom in SACs greatly, which then determines catalytic properties of the SACs.11–13”
From Single-atom catalysts for CO <sub>2</sub> electroreduction with significant activity and selectivity improvements (2017) · cites this paper as [13]
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- Authors
- Yang, S., Kim, J., Tak, Y. J., Soon, A., & Lee, H.
- Affiliations
- Korea Advanced Institute of Science and Technology (KR)
- Yonsei University (KR)
- Corresponding author
- Lee, Hyunjoo
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2015-12-28
- Volume
- 55
- Issue
- 6
- Pages
- 2058-2062
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W2197330948
- Cited by
- 899
- References
- 40
- Citations by year
- 2026: 39 · 2025: 73 · 2024: 89 · 2023: 101 · 2022: 110 · 2021: 106 · 2020: 138 · 2019: 100 · 2018: 83 · 2017: 46 · 2016: 14
- FWCI
- 14.09
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Angewandte Chemie International Edition (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Ministry of Education, Science and Technology
- 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
- single-atom catalysts, platinum, titanium nitride, electrocatalysis, electrochemical oxygen reduction, hydrogen peroxide, formic acid oxidation, methanol oxidation, two-electron pathway, mass activity
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