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Position: Home > issue > January 25, 2022 Volume 3, Issue 1
Engineering vacancy and hydrophobicity of two-dimensional TaTe2 for efficient and stable electrocatalytic N2 reduction
Category:   Article   Download:  PDF  Figure  Endnote
Author: Zhenqing Zhao, Jongseo Park, Changhyeok Choi, Song Hong, Xiangchao Hui, Hao Zhang, Tsz Woon Benedict Lo, Alex W. Robertson, Zengxiang Lv, Yousung Jung, Zhenyu Sun

1111.jpg

Graphical abstract

Ammonia is an essential resource across modern industry and agriculture. Direct nitrogen reduction reaction (NRR) using electrolysis provides a renewable and distributed route for manufacturing NH3. Considerable effort has been devoted to the design and development of advanced and robust electrocatalysts to enhance the efficiency of NRR. We report a synergistic protocol to boost electrocatalytic ammonia production by jointly tuning the Te vacancies (VTe) and surface hydrophobicity of two-dimensional TaTe2. Remarkable NH3 faradic efficiency of up to 32.2% is achieved at a mild overpotential, which is largely maintained even after 100.0 h of continuous operation. We identify that the edge plane of TaTe2 and VTe serve as the main active sites for NRR and the potential-determining step is ∗NH2 + (H+ + e¨C) ¡ú NH3.


DOI:
https://doi.org/10.1016/j.xinn.2021.100190

Citation:
Zhao Z., Park J., Choi C., et al. (2021). Engineering Vacancy and Hydrophobicity of Two-Dimensional TaTe2 for Efficient and Stable Electrocatalytic N2 Reduction. The Innovation. 3(1),100190.





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