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Jiang J, Li L, Xu M, et al. In Situ Packaging FeFx into Sack-like Carbon Nanoreactors: A Smart Way To Make Soluble Fluorides Applicable to Aqueous Batteries. ACS Appl Mater Interfaces. 2016;8(6):3874-82doi: 10.1021/acsami.5b10737.
Jiang, J., Li, L., Xu, M., Zhu, J., & Li, C. M. (2016). In Situ Packaging FeFx into Sack-like Carbon Nanoreactors: A Smart Way To Make Soluble Fluorides Applicable to Aqueous Batteries. ACS applied materials & interfaces, 8(6), 3874-82. https://doi.org/10.1021/acsami.5b10737
Jiang, Jian, et al. "In Situ Packaging FeFx into Sack-like Carbon Nanoreactors: A Smart Way To Make Soluble Fluorides Applicable to Aqueous Batteries." ACS applied materials & interfaces vol. 8,6 (2016): 3874-82. doi: https://doi.org/10.1021/acsami.5b10737
Jiang J, Li L, Xu M, Zhu J, Li CM. In Situ Packaging FeFx into Sack-like Carbon Nanoreactors: A Smart Way To Make Soluble Fluorides Applicable to Aqueous Batteries. ACS Appl Mater Interfaces. 2016 Feb 17;8(6):3874-82. doi: 10.1021/acsami.5b10737. Epub 2016 Feb 03. PMID: 26808115.
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ACS Appl Mater Interfaces. 2016 Feb 17;8(6):3874-82. doi: 10.1021/acsami.5b10737. Epub 2016 Feb 03.

In Situ Packaging FeFx into Sack-like Carbon Nanoreactors: A Smart Way To Make Soluble Fluorides Applicable to Aqueous Batteries.

ACS applied materials & interfaces

Jian Jiang, Linpo Li, Maowen Xu, Jianhui Zhu, Chang Ming Li

Affiliations

  1. Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University , Chongqing 400715, P.R. China.
  2. Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies , Chongqing 400715, P.R. China.
  3. School of Physical Science and Technology, Southwest University , Chongqing 400715, P.R. China.

PMID: 26808115 DOI: 10.1021/acsami.5b10737

Abstract

Ferruginous materials have long attracted great interest in aqueous batteries since Fe is an earth-abundant and low toxic element. However, their practical application is severely hindered by their poor structural stability during deep cycling. To maximize their cyclability, we herein propose a simple and effective method, by in situ packaging Fe-based materials into carbon nanosacks via a facile CVD approach. To verify our strategy, we purposely choose water-soluble Fe2F5 as a study paradigm. The in situ formed Fe2F5@C nanosacks product exhibits prominent anodic performance with high electrochemical activity and capacity, obviously prolonged cyclic lifetime, and outstanding rate capabilities. Besides, by pairing with the cathode of α-Co(OH)2 nanowire arrays@carbon cloth, a full device of rechargeable aqueous batteries has been developed, capable to deliver both high specific energy and power densities (Max. values reaching up to ∼163 Wh kg(-1) and ∼14.2 kW kg(-1)), which shows great potential in practical usage. Our present work may not only demonstrate the feasibility of using soluble fluorides as anodes for aqueous batteries but also provide a smart way to upgrade cyclic behaviors of Fe-based anodes.

Keywords: Fe2F5; aqueous batteries; carbon nanosacks; full cell; water soluble; α-Co(OH)2 nanowire arrays

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