ZIF-67 derived Ag-Co3O4@N-doped carbon/carbon nanotubes composite and its application in Mg-air fuel cell

Authors：Jiang, Min; He, Hao^*; Yi, Wen-Jun; Huang, Wen; Pan, Xiang; Wang, Ming-Yu; Chao, Zi-Sheng^*

Source：Electrochemistry Communications, 2017, 77: 5-9.

DOI：10.1016/j.elecom.2017.01.023

• ZIF-67 derived
• Synergistic effect
• Oxygen reduction reaction
• Mg-air fuel cell

Ag-Co3O4@N-doped carbon/carbon nanotubes composites are synthesized by dispersing Ag nanoparticles throughout the N-doped carbon derived from ZIF-67/CNT. In oxygen reduction reaction (ORR), the synthesized composites possess a one-step 4 electron pathway, and a synergistic effect between Ag nanoparticles and N doped carbon is proposed. In the Mg-air fuel cell, the synthesized composites show the highest power density of 88.9 mW/cm(2) at current density of 140 mA/cm(2), better than that of 20%Pt/C This excellent performance ensures this composite a promising ORR catalyst for Mg-air fuel cell.

• Institution
  长沙理工大学; hunan univ; 中南大学