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Engineering Low-Cost Organic Cathode for Aqueous Rechargeable Battery and Demonstrating the Proton Intercalation Mechanism for Pyrazine Energy Storage Unit.
Niu, Suyan; Wang, Yao; Zhang, Jianwen; Wang, Yiming; Tian, Yaxiong; Ju, Na; Wang, Haipeng; Zhao, Shuya; Zhang, Xinyue; Zhang, Wenlong; Li, Chengrui; Sun, Hong-Bin.
Afiliación
  • Niu S; Department of Chemistry, Northeastern University, Shenyang, 110819, P. R. China.
  • Wang Y; Department of Chemistry, Northeastern University, Shenyang, 110819, P. R. China.
  • Zhang J; Department of Chemistry, Northeastern University, Shenyang, 110819, P. R. China.
  • Wang Y; Department of Chemistry, Shanghai University, Shanghai, 200444, P. R. China.
  • Tian Y; Department of Chemistry, Northeastern University, Shenyang, 110819, P. R. China.
  • Ju N; Department of Chemistry, Northeastern University, Shenyang, 110819, P. R. China.
  • Wang H; College of Materials Science and Engineering, Guilin University of Technology, Guilin, 541004, P. R. China.
  • Zhao S; Department of Chemistry, Northeastern University, Shenyang, 110819, P. R. China.
  • Zhang X; Department of Chemistry, Northeastern University, Shenyang, 110819, P. R. China.
  • Zhang W; Department of Chemistry, Northeastern University, Shenyang, 110819, P. R. China.
  • Li C; Department of Chemistry, Northeastern University, Shenyang, 110819, P. R. China.
  • Sun HB; Research Center for Environmental Materials and Technology, Foshan (Southern China) Institute for New Materials, Foshan, 528200, P. R. China.
Small ; : e2309022, 2023 Dec 12.
Article en En | MEDLINE | ID: mdl-38084449
Seeking organic cathode materials with low cost and long cycle life that can be employed for large-scale energy storage remains a significant challenge. This work has synthesized an organic compound, triphenazino[2,3-b](1,4,5,8,9,12-hexaazatriphenylene) (TPHATP), with as high as 87.16% yield. This compound has a highly π-conjugated and rigid molecular structure, which is synthesized by capping hexaketocyclohexane with three molecules of 2,3-diaminophenazine derived from low-cost o-phenylenediamine, and is used as a cathode material for assembling aqueous rechargeable zinc ion batteries. Both experiments and DFT calculations demonstrate that the redox mechanism of TPHATP is predominantly governed by H+ storage. The Zn-intercalation product of nitride-type compound, is too unstable to form in water. Moreover, the TPHATP cathode exhibits a capacity of as high as 318.3 mAh g-1 at 0.1 A g-1 , and maintained a stable capacity of 111.9 mAh g-1 at a large current density of 10 A g-1 for 5000 cycles with only a decay of 0.000512% per cycle. This study provides new insights into understanding pyrazine as an active redox group and offers a potential affordable aqueous battery system for grid-scale energy storage.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Small Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2023 Tipo del documento: Article Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Small Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2023 Tipo del documento: Article Pais de publicación: Alemania