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Updated: Jun 6, 2025
Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Atomically modulated Cu single-atom catalysts for oxygen reduction reactions towards high-power density Zn- and
Nayantara K Wagh1, Sambhaji S Shinde1, Jung-Ho Lee1
1Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Republic of Korea. jungho@hanyang.ac.kr.
Abstract:
Herein, Cu single-atom-encapsulated hollow carbon-nitrogen spheres (CuSA@CNS) are fabricated through a solution process, confining optimal electronic structures reinforcing Cu-N4 active sites. CuSA@CNS demonstrate a remarkable half-wave potential of 0.95 V, mass activity, and a durability of 5000 cycles. Accordingly, CuSA@CNS present record-high power densities of 371 and 289 mW cm-2 for Zn- and Al-air batteries. The rechargeable Zn-air battery demonstrates an unprecedented small charge-discharge voltage and stable cycling for harsh operations at 50 mA cm-2, outperforming Pt/C.
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