BCN-Encapsulated Nano-nickel Synergistically Promotes Ambient Electrochemical Dinitrogen Reduction
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URI (for links/citations):
https://pubs.acs.org/doi/abs/10.1021/acsami.0c06649https://elib.sfu-kras.ru/handle/2311/142805
Author:
Xue, Zhao
Ziqiong, Yang
Artem, V Kuklin
Glib, V Baryshnikov
Hans, Agren
Wenjing, Liu
Haibo, Zhang
Xiaohai, Zhou
Corporate Contributor:
Научно-исследовательская часть
Date:
2020-07Journal Name:
ACS Applied Materials & InterfacesJournal Quartile in Scopus:
Q1Journal Quartile in Web of Science:
Q1Bibliographic Citation:
Xue, Zhao. BCN-Encapsulated Nano-nickel Synergistically Promotes Ambient Electrochemical Dinitrogen Reduction [Текст] / Zhao Xue, Yang Ziqiong, V Kuklin Artem, V Baryshnikov Glib, Agren Hans, Liu Wenjing, Zhang Haibo, Zhou Xiaohai // ACS Applied Materials & Interfaces. — 2020. — Т. 12 (№ 28). — С. 31419-31430Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.
Abstract:
The electricity provided by solar or wind power can drive nitrogen in the atmosphere, combining with ubiquitous water to form ammonia, and distributed production methods can alleviate the irreversible damage to the environment caused by the energy-intensive Haber–Bosch process. Here, we have designed a novel Ni-doped BCN heterojunction (S/M-BOPs-1) as a catalyst for the electrochemical nitrogen reduction reaction (NRR). The ammonia yield rate and Faraday efficiency in NRR driven by S/M-BOPs-1 reach up to 16.72 μg–1 h–1 cm–2 and 13.06%, respectively. Moreover, S/M-BOPs-1 still maintains high NRR activity and excellent stability after recycling for eight times and long-time operation of 12 h. Using density functional theory calculations, we reveal a possible NRR path for N2 to NH3 on Ni, BCN, and the S/M-BOPs-1 composite surfaces. The interaction between the BCN matrix and Ni nanoparticles promotes a synergetic effect for the electrochemical NRR efficiency due to the partial electron transfer from the Ni particles to BCN that inhibits hydrogen evolution reaction and decreases the rate-determining step on Ni surfaces toward NRR by ∼1.5 times. Therefore, efficient NRR performance can be achieved by tuning the electronic properties of non-noble metals via the formation of a heterointerface.