Boosting the electrocatalytic ammonia oxidation reaction through dual-interface effects
Interface engineering of metal oxide/alloy/carbon composites could enhance NH<sub>3</sub> dehydrogenation while weakening *N binding on Pt. In this work, we synthesized PtCoO<sub><i>x</i></sub>/C catalysts <i>via</i> a facile method, leveraging the synergistic effects of dual-interfaces - specifically, the "metal oxide-alloy" (PtCo-CoO<sub><i>x</i></sub>) and "alloy-carbon" (PtCo-C) interfaces. Both PtCo-CoO<sub><i>x</i></sub> and PtCo-C could synergistically modulate Pt's electronic structure, promoting the ammonia oxidation reaction (AOR). The electrochemical results reveal that PtCoO<sub><i>x</i></sub>/C achieves a remarkable current density of 18.4 mA cm<sup>-2</sup> and exhibits superior stability compared to both PtCo/C and PtCo SS/C. The results highlight the critical role of dual-interface effects in enhancing the AOR.
Authors
- Jianfeng Ju
- Xiaolei Yuan (ORCID: https://orcid.org/0000-0002-8660-7246)
- Shengming Li (ORCID: https://orcid.org/0009-0009-6834-1083)
- Chi Zhang (ORCID: https://orcid.org/0000-0002-5237-8916)
- Zhengqiu Yuan
- Yuying Chen (ORCID: https://orcid.org/0000-0001-9091-2051)
- Xin Cheng (ORCID: https://orcid.org/0000-0003-1415-0651)
- Yue Shi
- Qi‐Zhen Shi
Institutions
- Nantong University (CN)
Publication Details
- Journal
- Chemical Communications
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5cc04506a
- Primary Topic
- Ammonia Synthesis and Nitrogen Reduction
- Type
- article
- Field-Weighted Citation Impact
- 0.00