Spin state modulation on dual Fe center by adjacent Ni sites enabling the boosted activities and ultra-long stability in Zn-air batteries

Zhang，Canhui1; Wang，Xingkun1,2; Ma，Zhentao4; Yao，Hanxu1,2; Liu，Hengjun5; Li，Cheng3; Zhou，Jian1; Xu，Ren1; Zheng，Xusheng4; Wang，Huanlei1; Li，Qiang5; Gu，Meng3; Jiang，Heqing2; Huang，Minghua1

2023

10.1016/j.scib.2023.07.049

Science Bulletin   Impact Factor & Quartile

2095-9273

2095-9281

Breakthrough in developing cost-effective Fe-based catalysts with superior oxygen reduction reaction (ORR) activities and ultra-long-term stability for application in Zn-air batteries (ZABs) remain a priority but still full of challenges. Herein, the neighboring NiN single-metal-atom and FeN dual-metal-atoms on the N-doped hollow carbon sphere (Fe/Ni-NHCS) were deliberately constructed as the efficient and robust ORR catalyst for ZABs. Both theory calculations and magnetic measurements demonstrate that the introduction of NiN provides a significant role on optimizing the electron spin state of FeN sites and reducing the energy barrier for the adsorption and conversion of the oxygen-containing intermediates, enabling the Fe/Ni-NHCS with excellent ORR performance and ultralow byproduct HO yield (0.5%). Impressively, the ZABs driven by Fe/Ni-NHCS exhibit unprecedented long-term rechargeable stability over 1200 h. This work paves a new venue to manipulate the spin state of active sites for simultaneously achieving superior catalytic activities and ultra-long-term stability in energy conversion technologies.

Byproduct HO2− Dual-metal-atom Electron spin state Oxygen reduction reaction Rechargeable stability

SCI

English

Corresponding

Booz Allen Foundation[21775142];Booz Allen Foundation[BL14W1];Booz Allen Foundation[ZR2020ZD10];

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:001081423800001

ELSEVIER

2-s2.0-85168375348

Scopus

1.School of Materials Science and Engineering,Ocean University of China,Qingdao,266100,China
2.Qingdao Key Laboratory of Functional Membrane Material and Membrane Technology,Qingdao Institute of Bioenergy and Bioprocess Technology,Chinese Academy of Sciences,Qingdao,266101,China
3.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
4.National Synchrotron Radiation Laboratory (NSRL),University of Science and Technology of China,Hefei,230029,China
5.College of Physics,University-Industry Joint Center for Ocean Observation and Broadband Communication,State Key Laboratory of Bio-Fibers and Eco-Textiles,Weihai Innovation Research Institute,Qingdao University,Qingdao,266071,China

Zhang，Canhui,Wang，Xingkun,Ma，Zhentao,et al. Spin state modulation on dual Fe center by adjacent Ni sites enabling the boosted activities and ultra-long stability in Zn-air batteries[J]. Science Bulletin,2023,68(18).

Zhang，Canhui.,Wang，Xingkun.,Ma，Zhentao.,Yao，Hanxu.,Liu，Hengjun.,...&Huang，Minghua.(2023).Spin state modulation on dual Fe center by adjacent Ni sites enabling the boosted activities and ultra-long stability in Zn-air batteries.Science Bulletin,68(18).

Zhang，Canhui,et al."Spin state modulation on dual Fe center by adjacent Ni sites enabling the boosted activities and ultra-long stability in Zn-air batteries".Science Bulletin 68.18(2023).