Uniform FexNiy Nanospheres: Cost-Effective Electrocatalysts for Nonaqueous Rechargeable Li-O2` Batteries

作者：Yuan, Mengwei; Nan, Caiyun; Yang, Yan; Sun, Genban^*; Li, Huifeng; Ma, Shulan

来源：ACS Omega, 2017, 2(8): 4269-4277.

DOI：10.1021/acsomega.7b00497

• LITHIUM-AIR BATTERIES
• PHASE-CONTROLLED SYNTHESIS
• REDUCED GRAPHENE OXIDE
• HIGH-CAPACITY
• EFFICIENT ELECTROCATALYSTS
• CYCLING STABILITY
• CATHODE MATERIALS
• POROUS GRAPHENE
• NANOPARTICLES
• CARBON

Uniform FexNiy nanospheres were synthesized via a simple solvothermal method and used as electrocatalysts for Li-O-2 batteries. Fe7Ni3 nanospheres exhibited relatively high catalytic activities in the electrochemical tests. They delivered a reversible capacity of more than 7000 mAh/gKB and gave a discharge-charge voltage gap reduction of 250 mV compared with Ketjen Black.

• 出版日期2017-8
• 单位北京师范大学; 北京科技大学