Activating iodine redox by enabling single-atom coordination to dormant nitrogen sites to realize durable zinc–iodine batteries

Author:

Lee Jisung1,Lee Wooseok2,Back Seungho1ORCID,Yi Seung Yeop1,Lee Seonggyu34ORCID,Kim Seongseop5ORCID,Moon Joonhee6,Koh Dong-Yeun1ORCID,Kim Kyeounghak7ORCID,Back Seoin2ORCID,Lee Jinwoo1ORCID

Affiliation:

1. Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daehak-ro 291, Daejeon 34141, Republic of Korea

2. Department of Chemical and Biomolecular Engineering, Institute of Emergent Materials, Sogang University, Seoul 04107, Republic of Korea

3. Department of Chemical Engineering, Kumoh National Institute of Technology (KIT), Gumi 39177, Republic of Korea

4. Department of Energy Engineering Convergence, Kumoh National Institute of Technology (KIT), Gumi 39177, Republic of Korea

5. School of Chemical Engineering, Clean Energy Research Center, Jeonbuk National University, Jeonju 54896, Republic of Korea

6. Division of Materials Analysis, Korea Basic Science Institute (KBSI), Daejeon 34133, Republic of Korea

7. Department of Chemical Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea

Abstract

The introduction of a single Ni atom into an inactive N-doped carbon matrix, through its role as an electrocatalyst, awakens the dormant N sites, significantly suppressing the polyiodide shuttle effect and enhancing iodine redox kinetics.

Funder

Institute for Information and Communications Technology Promotion

National Research Foundation of Korea

Publisher

Royal Society of Chemistry (RSC)

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