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Published on: July 12, 2016
In situ potential-regulated architecture of an ultrafine Ru-based electrocatalyst for ultralow overpotential
Liangyu Jin1, Aiming Xing1, Zhenjiang Zhu1
1Future Energy Laboratory, School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China. liujh@hfut.edu.cn.
Abstract:
An in situ electrochemical reduction strategy is proposed to avoid the aggregation of nano-Ru in lithium batteries for the first time. The high-dispersion face-centered cubic (fcc) nano-Ru is successfully synthesized with an average diameter of 2.0 nm, and the as-assembled lithium-oxygen batteries deliver an excellent cycling performance of 185 cycles and an ultralow overpotential of only 0.20 V at 100 mA g-1.
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