Amorphous FeOOH quantum dots decorated on g-C3N4 nanosheets for high-performance energy storage electrodes


Quantum dots (QDs) have recently attracted intensive attention for electrode materials due to their tunable physical dimensions, unique surface effect and pseudocapacitive property. Nevertheless, direct employment of QDs as electrode materials are plagued because of their intrinsic aggregation. In this work, we have successfully fabricated amorphous FeOOH QDs and FeOOH/g-C3N4 hybrid nanosheets as electrode materials using a scalable and bottom-up synthesis route. The FeOOH/g-C3N4 composite possesses a unique heterostructure, comprising a highly dispersed FeOOH QDs anchored on g-C3N4 nanosheets. We probe the behavior of as-prepared hybrid sample, which collectively delivers significant improvement in terms of ultrahigh specific capacitance and long-term stability. The FeOOH/g-C3N4-20 electrode exhibits a large specific capacitance of about 270.8 F g−1 at 1 A g −1, prominent rate capability at high scan rates, and favorable capacitance retention (78.3% capacitance retention after 3000 cycles).

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  1. 1.

    Y. Guo, J. Zhou, Y. Liu, X. Zhou, F. Yao, C. Tan, J. Wu, L. Lin, K. Liu, Z. Liu, H. Peng, Adv. Mater. 29, 1703424 (2017)

    Article  CAS  Google Scholar 

  2. 2.

    R.Y. Tay, H.J. Park, J. Ling, Z.K. Ng, L. Jing, H. Li, M. Zhu, S.H. Tsang, Z. Lee, E.H.T. Teo, Chem. Mater. 30, 6858 (2018)

    CAS  Article  Google Scholar 

  3. 3.

    L.A. Padilha, G. Nootz, P.D. Olszak, S. Webster, D.J. Hagan, E.W. Van Stryland, L. Levina, V. Sukhovatkin, L. Brzozowski, E.H. Sargent, Nano Lett. 11, 1227 (2011)

    CAS  Article  Google Scholar 

  4. 4.

    D.I. Son, B.W. Kwon, D.H. Park, W.-S. Seo, Y. Yi, B. Angadi, C.-L. Lee, W.K. Choi, Nat. Nanotechnol. 7, 465 (2012)

    CAS  Article  Google Scholar 

  5. 5.

    Y. Xu, B. Li, S. Zheng, P. Wu, J. Zhan, H. Xue, Q. Xu, H. Pang, J. Mater. Chem. A 6, 22070 (2018)

    CAS  Article  Google Scholar 

  6. 6.

    G.H. Carey, L. Levina, R. Comin, O. Voznyy, E.H. Sargent, Adv. Mater. 27, 3325 (2015)

    CAS  Article  Google Scholar 

  7. 7.

    V. Ruiz, L. Yate, I. Garcia, G. Cabanero, H.J. Grande, Carbon 116, 366 (2017)

    CAS  Article  Google Scholar 

  8. 8.

    W. Zhao, X. Ma, Y. Li, G. Wang, X. Long, Appl. Surf. Sci. 504, 144455 (2020)

    CAS  Article  Google Scholar 

  9. 9.

    X. Dong, K. Wu, W. Zhu, P. Wu, J. Hou, Z. Wang, R. Li, J. Wu, Z. Liu, X. Guo, J. Mater. Sci. 54, 7834 (2019)

    CAS  Article  Google Scholar 

  10. 10.

    M. Zhang, C. Lai, B. Li, F. Xu, L. Chen, Chem. Eng. J. 396, 125343 (2020)

    CAS  Article  Google Scholar 

  11. 11.

    H. Montaseri, P.B.C. Forbes, Mater. Today Commun. 17, 480–492 (2018)

    CAS  Article  Google Scholar 

  12. 12.

    S.A. Veldhuis, Y.F. Ng, R. Ahmad, A. Bruno, N.F. Jamaludin, B. Damodaran, N. Mathews, S.G. Mhaisalkar, ACS Energy Lett. 3, 526 (2018)

    CAS  Article  Google Scholar 

  13. 13.

    W. Ping, X. Yuxia, Z. Jingyi, L. Yan, X. Huaiguo, P. Huan, Small 14, 1801479 (2018)

    Article  CAS  Google Scholar 

  14. 14.

    R. Huang, L. Wang, Q. Zhang, Z. Chen, Z. Li, D. Pan, B. Zhao, M. Wu, C.M.L. Wu, C.H. Shek, ACS Nano 9, 11351 (2015)

    CAS  Article  Google Scholar 

  15. 15.

    Z. Jiang, W. Lu, Z. Li, K.H. Ho, X. Li, X. Jiao, D. Chen, J. Mater. Chem. A 2, 8603 (2014)

    CAS  Article  Google Scholar 

  16. 16.

    H. Li, Y. Gao, C. Wang, G. Yang, Adv. Energy Mater. 5, 1401767 (2015)

    Article  CAS  Google Scholar 

  17. 17.

    J. Liu, M. Zheng, X. Shi, H. Zeng, H. Xia, Adv. Funct. Mater. 26, 919 (2016)

    CAS  Article  Google Scholar 

  18. 18.

    L. Rong, L. Ma, G. Niu, X. Li, G. Yuan, Part. Part. Syst. Char. 34, 1700213 (2017)

    Article  CAS  Google Scholar 

  19. 19.

    H. Xia, C. Hong, B. Li, B. Zhao, Z. Lin, M. Zheng, S.V. Savilov, S.M. Aldoshin, Adv. Funct. Mater. 25, 627 (2015)

    CAS  Article  Google Scholar 

  20. 20.

    W. Luo, C. Jiang, Y. Li, S.A. Shevlin, J.W. Tang, J. Mater. Chem. A 5, 2021 (2016)

    Article  CAS  Google Scholar 

  21. 21.

    G. Qu, C. Li, P. Hou, G. Zhao, X. Wang, X. Zhang, X. Xu, Nanoscale 12, 4686 (2020)

    CAS  Article  Google Scholar 

  22. 22.

    P. Yang, Y. Chen, X. Yu, P. Qiang, K. Wang, X. Cai, S. Tan, P. Liu, J. Song, W. Mai, Nano Energy 10, 108 (2014)

    CAS  Article  Google Scholar 

  23. 23.

    X. Chang, X. Zhai, S. Sun, D. Gu, L. Dong, Y. Yin, Y. Zhu, Nanotechnology 28, 135705 (2017)

    Article  CAS  Google Scholar 

  24. 24.

    B. Palanivel, S.D. Mudisoodum perumal, T. Maiyalagan, V. Jayarman, C. Ayyappan, M. Alagiri, Appl. Surf. Sci. 498, 143807 (2019)

    CAS  Article  Google Scholar 

  25. 25.

    Y. Zhang, J. Xu, J. Mei, S. Sarina, Z. Wu, T. Liao, C. Yan, Z. Sun, J. Hazard. Mater. 394, 122529 (2020)

    CAS  Article  Google Scholar 

  26. 26.

    Z. Li, R. Lin, Z. Liu, D. Li, H. Wang, Q. Li, Electrochim. Acta 191, 606 (2016)

    CAS  Article  Google Scholar 

  27. 27.

    M. Ding, J. Zhou, H. Yang, R. Cao, X. Xu, Chin. Chem. Lett. 31, 71 (2019)

    Article  CAS  Google Scholar 

  28. 28.

    Y. Wang, L. Li, Y. Wei, J. Xue, H. Chen, L. Ding, J. Caro, H. Wang, Angew. Chem. Int. Ed. 56, 8974 (2017)

    CAS  Article  Google Scholar 

  29. 29.

    X. She, J. Wu, J. Zhong, H. Xu, Y. Yang, R. Vajtai, J. Lou, Y. Liu, D. Du, H. Li, Nano Energy 27, 138 (2016)

    CAS  Article  Google Scholar 

  30. 30.

    P. Niu, L. Zhang, G. Liu, H. Cheng, Adv. Funct. Mater. 22, 4763 (2012)

    CAS  Article  Google Scholar 

  31. 31.

    Y. Xiao, G. Tian, W. Li, Y. Xie, B. Jiang, C. Tian, D. Zhao, H. Fu, J. Am. Chem. Soc. 141, 2508 (2019)

    CAS  Article  Google Scholar 

  32. 32.

    S. Wang, Y. Shao, W. Liu, Y. Wu, X. Hao, J. Mater. Chem. 6, 13215 (2018)

    CAS  Article  Google Scholar 

  33. 33.

    M. Shi, P. Xiao, J. Lang, C. Yan, X. Yan, Adv. Sci. 7, 1901975 (2020)

    CAS  Article  Google Scholar 

  34. 34.

    X. Qian, Y. Wu, M. Kan, M. Fang, D. Yue, J. Zeng, Y. Zhao, Appl. Catal. B Environ. 237, 513 (2018)

    CAS  Article  Google Scholar 

  35. 35.

    W. Guo, J. Wang, C. Fan, Z. Chen, P. Liu, D. Zhu, Z. Xu, L. Pang, T. Li, Electrochim. Acta 253, 68 (2017)

    CAS  Article  Google Scholar 

  36. 36.

    H. Yang, S. Zhang, R. Cao, X. Deng, Z. Li, X. Xu, Sci. Rep. 7, 8686 (2017)

    Article  CAS  Google Scholar 

  37. 37.

    A. Tiyadjowe, S. Laminsi, G.L. Noupeyi, E.M. Gaigneaux, Appl. Catal. B Environ. 176, 99 (2015)

    Article  CAS  Google Scholar 

  38. 38.

    C. Long, L. Jiang, T. Wei, J. Yan, Z. Fan, J. Mater. Chem. A 2, 16678 (2014)

    CAS  Article  Google Scholar 

  39. 39.

    W.H. Jin, G.T. Cao, J.Y. Sun, J. Power Sources 175, 686 (2008)

    CAS  Article  Google Scholar 

  40. 40.

    S. Sun, T. Zhai, C. Liang, S.V. Savilov, H. Xia, Nano Energy 45, 390 (2018)

    CAS  Article  Google Scholar 

  41. 41.

    T. Zhai, S. Sun, X. Liu, C. Liang, G. Wang, H. Xia, Adv. Mater. 30, 1706640 (2018)

    Article  CAS  Google Scholar 

  42. 42.

    X. Zheng, X. Yan, Y. Sun, Z. Bai, G. Zhang, Y. Shen, Q. Liang, Y. Zhang, ACS Appl. Mater. Interfaces. 7, 2480 (2015)

    CAS  Article  Google Scholar 

  43. 43.

    C. Yang, J. Liu, X. Song, L. Zhao, P. Zhang, L. Gao, Mater. Lett. 266, 127498 (2020)

    CAS  Article  Google Scholar 

  44. 44.

    B. Long, M.-S. Balogun, L. Luo, W. Qiu, Y. Luo, S. Song, Y. Tong, Adv. Energy Mater. 8, 1701681 (2018)

    Article  CAS  Google Scholar 

  45. 45.

    X. Guo, W. Zhang, C. Qian, H. Yang, T. Fan, Ceram. Int. 44, 9696 (2018)

    CAS  Article  Google Scholar 

  46. 46.

    G. Xiang, Y. Meng, G. Qu, J. Yin, B. Teng, Q. Wei, X. Xu, Sci. Bull. 65, 443 (2020)

    CAS  Article  Google Scholar 

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We would like to thank our funding agencies, as this work was supported by the Natural Science Foundation of the Higher Education Institutions of Jiangsu Province [Grant No.17KJD430002], and the Doctoral Scientific Research Foundation of Jiangsu University of Science and Technology [Grant No.1062931603].

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Correspondence to Yanmin Gao.

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Zheng, R., Lu, F., Yang, H. et al. Amorphous FeOOH quantum dots decorated on g-C3N4 nanosheets for high-performance energy storage electrodes. Journal of Materials Research (2021).

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  • Energy storage
  • Quantum dot
  • Heterostructure
  • 2D materials