These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: A vacancy engineered MnO2-x electrocatalyst promotes nitrate electroreduction to ammonia.
    Author: Wang G, Shen P, Luo Y, Li X, Li X, Chu K.
    Journal: Dalton Trans; 2022 Jun 21; 51(24):9206-9212. PubMed ID: 35662293.
    Abstract:
    The NO3- reduction reaction (NO3RR) has recently emerged as a potential approach for sustainable and efficient NH3 production, whereas exploring high-performance NO3RR electrocatalysts is highly desirable yet challenging. Herein, we attempted to construct O-vacancies (OVs) on MnO2 nanosheets and the resulting OV-rich MnO2-x showed a high NH3 yield of 3.34 mg h-1 cm-2 (at -1.0 V vs. RHE) and an excellent FE of 92.4% (at -0.9 V vs. RHE), together with the outstanding stability. DFT calculations reveal that OVs on MnO2 serve as catalytic centers to enhance NO3- adsorption and dissociation, reduce the energy barriers of hydrogenation steps and thus promote NO3--to-NH3 conversion.
    [Abstract] [Full Text] [Related] [New Search]