MoO<sub>2</sub>@C nanoparticles decorated on reduced graphene oxide for electrocatalytic nitrite reduction to ammonia
Electrocatalytic nitrite (NO<sub>2</sub><sup>-</sup>) reduction is a promising and eco-friendly method for ammonia (NH<sub>3</sub>) production. Here, carbon-coated MoO<sub>2</sub> nanoparticles decorated on reduced graphene oxide (MoO<sub>2</sub>@C/RGO) are reported to be an effective electrocatalyst for NO<sub>2</sub><sup>-</sup> reduction to NH<sub>3</sub>. The outer carbon shell not only effectively enhances the stability of the electrocatalyst but also promotes the charge transfer during the NO<sub>2</sub><sup>-</sup> reduction process, thereby significantly improving the catalytic performance. In neutral media, MoO<sub>2</sub>@C/RGO provides a high NH<sub>3</sub> yield of 17.64 ± 0.10 mg h<sup>-1</sup> cm<sup>-2</sup> and a high FE of 95.79% ± 0.50% at -0.9 V. Furthermore, a Zn-NO<sub>2</sub><sup>-</sup> battery with MoO<sub>2</sub>@C/RGO exhibits a peak power density of 2.125 mW cm<sup>-2</sup> and an open circuit voltage of 1.33 V.
Authors
- Lisi Xie (ORCID: https://orcid.org/0000-0002-2821-0208)
- Qingquan Kong (ORCID: https://orcid.org/0000-0002-2618-5168)
- Xuguang An (ORCID: https://orcid.org/0000-0002-3711-0524)
- Qian Liu (ORCID: https://orcid.org/0000-0002-1632-8559)
- Weitang Yao (ORCID: https://orcid.org/0000-0001-9558-0156)
- Hao Chen (ORCID: https://orcid.org/0000-0003-3122-1802)
- Xiaolei Li (ORCID: https://orcid.org/0000-0002-1648-9459)
- Jing Zhang (ORCID: https://orcid.org/0000-0002-6915-2374)
Institutions
- Chengdu University (CN)
Publication Details
- Journal
- Chemical Communications
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5cc02125a
- Primary Topic
- Ammonia Synthesis and Nitrogen Reduction
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Sichuan Province Science and Technology Support Program