Journal article
Single platinum atoms immobilized on an MXene as an efficient catalyst for the hydrogen evolution reaction
Nature catalysis, v 1(12), pp 985-992
01 Dec 2018
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Single-atom catalysts offer a pathway to cost-efficient catalysis using the minimal amount of precious metals. However, preparing and keeping them stable during operation remains a challenge. Here we report the synthesis of double transition metal MXene nanosheets-Mo2TiC2Tx, with abundant exposed basal planes and Mo vacancies in the outer layers-by electrochemical exfoliation, enabled by the interaction between protons and the surface functional groups of Mo2TiC2Tx. The as-formed Mo vacancies are used to immobilize single Pt atoms, enhancing the MXene's catalytic activity for the hydrogen evolution reaction. The developed catalyst exhibits a high catalytic ability with low overpotentials of 30 and 77 mV to achieve 10 and 100 mA cm(-2) and a mass activity about 40 times greater than the commercial platinum-on-carbon catalyst. The strong covalent interactions between positively charged Pt single atoms and the MXene contribute to the exceptional catalytic performance and stability.
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Details
- Title
- Single platinum atoms immobilized on an MXene as an efficient catalyst for the hydrogen evolution reaction
- Creators
- Jinqiang Zhang - University of Technology SydneyYufei Zhao - University of Technology SydneyXin Guo - University of Technology SydneyChen Chen - Tsinghua UniversityChung-Li Dong - Tamkang UniversityRu-Shi Liu - National Taiwan UniversityChih-Pin Han - National Taiwan UniversityYadong Li - Tsinghua UniversityYury Gogotsi - Drexel UniversityGuoxiu Wang - University of Technology Sydney
- Publication Details
- Nature catalysis, v 1(12), pp 985-992
- Publisher
- Springer Nature
- Number of pages
- 8
- Grant note
- DP160104340; DP170100436 / Australian Research Council (ARC) through ARC Discovery projects; Australian Research Council Rail Manufacturing CRC (RMCRC) project
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000452918800016
- Scopus ID
- 2-s2.0-85058500687
- Other Identifier
- 991019167453404721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Physical