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Home NEWS Science News Chemistry

Defect and interface engineering for e-NRR under ambient conditions

Bioengineer by Bioengineer
June 28, 2021
in Chemistry
Reading Time: 2 mins read
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Credit: Journal of Energy Chemistry

The electrochemical nitrogen reduction reaction (e-NRR) under ambient conditions is an emerging strategy to tackle the hydrogen- and energy-intensive processes entailed in industrial ammonia (NH3) synthesis via the traditional Haber-Bosch process. However, the e-NRR performance is currently impeded by the inherent inertness of N2 molecules, extremely slow kinetics, and overwhelming competition from the hydrogen evolution reaction (HER), all of which result in an unsatisfactory yield and ammonia selectivity (Faradaic efficiency, FE). To achieve a high-selectivity and high-performance NRR under ambient conditions, the rational design of efficient electrocatalysts is urgently required. Defect and interface engineering are capable of achieving novel physical and chemical properties as well as superior synergistic effects for various electrocatalysts.

Recently, the Wang Danhong research group of Nankai University reviewed the latest progress of e-NRR catalysts under ambient conditions from the perspective of defect and interface engineering. The authors first provided a general introduction to the NRR mechanism. Subsequently, the authors provided a comprehensive and detailed review on defect and interface engineering for e-NRR electrocatalysts, emphasizing the elucidation of active sites and intrinsic mechanisms. They discussed how the defect (vacancies, heteroatom doping, single-atom, crystal facets, amorphization) engineering and the surface (metal-metal oxide interface, metal-carbon material interface, intermetallic compounds from the viewpoint of alloyed structures, gas-electrolyte-catalyst interface) regulation alter the number of active sites or the electronic structure and then promote the activity of NRR electrocatalysts. In the final section, the authors summarized the present research status and challenges in this emerging field from different aspects and discussed the potential strategies to develop more advanced NRR electrocatalysts. It is expected that this review will be stimulating and assist researchers to create more efficient catalysts for the electrochemical NRR.

###

This work was supported by the National Natural Science Foundation of China (Grant No. 21904071 and 22071115).

The review was published in the Journal of Energy Chemistry. (DOI: 10.1016/j.jechem.2021.06.012)

About the journal

The Journal of Energy Chemistry is a publication that mainly reports on creative researches and innovativeapplications of chemical conversions of fossil energy, carbon dioxide, electrochemical energy and hydrogen energy,as well as the conversions of biomass and solar energy related with chemical issues to promote academicexchanges in the field of energy chemistry and to accelerate the exploration, research and development of energyscience and technologies.

At Elsevier

https://www.sciencedirect.com/journal/journal-of-energy-chemistry

Manuscript submission

https://www.editorialmanager.com/jechem/default.aspx

Media Contact
Xiaoluan Wei
[email protected]

Related Journal Article

http://dx.doi.org/10.1016/j.jechem.2021.06.012

Tags: Chemistry/Physics/Materials SciencesEnergy/Fuel (non-petroleum)Industrial Engineering/ChemistryMaterialsParticle Physics
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