Mn3O4 nanoparticles@reduced graphene oxide composite: An efficient electrocatalyst for artificial N2 fixation to NH3 at ambient conditions

  • Hong Huang
  • Feng Gong
  • Yuan Wang
  • Huanbo Wang
  • Xiufeng Wu
  • Wenbo Lu
  • Runbo Zhao
  • Hongyu Chen
  • Xifeng Shi
  • Abdullah M. Asiri
  • Tingshuai Li
  • Qian Liu
  • Xuping SunEmail author
Research Article


Currently, industrial-scale NH3 production almost relies on energy-intensive Haber-Bosch process from atmospheric N2 with large amount of CO2 emission, while low-cost and high-efficient catalysts are demanded for the N2 reduction reaction (NRR). In this study, Mn3O4 nanoparticles@reduced graphene oxide (Mn3O4@rGO) composite is reported as an efficient NRR electrocatalyst with excellent selectivity for NH3 formation. In 0.1 M Na2SO4 solution, such catalyst obtains a NH3 yield of 17.4 μg·h−1·mg−1cat. and a Faradaic efficiency of 3.52% at −0.85 V vs. reversible hydrogen electrode. Notably, it also shows high electrochemical stability during electrolysis process. Density functional theory (DFT) calculations also demonstrate that the (112) planes of Mn3O4 possess superior NRR activity.


Mn3O4@rGO composite electrocatalyst NH3 synthesis N2 reduction reaction ambient conditions 


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This work was supported by the National Natural Science Foundation of China (No. 21575137).

Supplementary material

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Mn3O4 nanoparticles@reduced graphene oxide composite: An efficient electrocatalyst for artificial N2 fixation to NH3 at ambient conditions


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Copyright information

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Hong Huang
    • 1
  • Feng Gong
    • 3
  • Yuan Wang
    • 1
  • Huanbo Wang
    • 2
  • Xiufeng Wu
    • 1
    • 4
  • Wenbo Lu
    • 4
  • Runbo Zhao
    • 1
  • Hongyu Chen
    • 1
  • Xifeng Shi
    • 5
  • Abdullah M. Asiri
    • 6
  • Tingshuai Li
    • 3
  • Qian Liu
    • 3
  • Xuping Sun
    • 1
    Email author
  1. 1.Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengduChina
  2. 2.School of Environment and ResourceSouthwest University of Science and TechnologyMianyangChina
  3. 3.School of Materials and EnergyUniversity of Electronic Science and Technology of ChinaChengduChina
  4. 4.Key Laboratory of Magnetic Molecules and Magnetic Information Materials (Ministry of Education), School of Chemistry and Material ScienceShanxi Normal UniversityLinfenChina
  5. 5.College of Chemistry, Chemical Engineering and Materials ScienceShandong Normal UniversityJinanChina
  6. 6.Chemistry Department, Faculty of Science & Center of Excellence for Advanced Materials ResearchKing Abdulaziz UniversityJeddahSaudi Arabia

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