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Photocatalysis‐Assisted Co(3)O(4)/g‐C(3)N(4) p–n Junction All‐Solid‐State Supercapacitors: A Bridge between Energy Storage and Photocatalysis
Supercapacitors with the advantages of high power density and fast discharging rate have full applications in energy storage. However, the low energy density restricts their development. Conventional methods for improving energy density are mainly confined to doping atoms and hybridizing with other...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7675041/ https://www.ncbi.nlm.nih.gov/pubmed/33240757 http://dx.doi.org/10.1002/advs.202001939 |
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author | Bai, Liqi Huang, Hongwei Zhang, Songge Hao, Lin Zhang, Zhili Li, Hongfen Sun, Li Guo, Lina Huang, Haitao Zhang, Yihe |
author_facet | Bai, Liqi Huang, Hongwei Zhang, Songge Hao, Lin Zhang, Zhili Li, Hongfen Sun, Li Guo, Lina Huang, Haitao Zhang, Yihe |
author_sort | Bai, Liqi |
collection | PubMed |
description | Supercapacitors with the advantages of high power density and fast discharging rate have full applications in energy storage. However, the low energy density restricts their development. Conventional methods for improving energy density are mainly confined to doping atoms and hybridizing with other active materials. Herein, a Co(3)O(4)/g‐C(3)N(4) p–n junction with excellent capacity is developed and its application in an all‐solid‐state flexible device is demonstrated, whose capacity and energy density are considerably enhanced by simulated solar light irradiation. Under photoirradiation, the capacity is increased by 70.6% at the maximum current density of 26.6 mA cm(−2) and a power density of 16.0 kW kg(−1). The energy density is enhanced from 7.5 to 12.9 Wh kg(−1) with photoirradiation. The maximum energy density reaches 16.4 Wh kg(−1) at a power density of 6.4 kW kg(−1). It is uncovered that the lattice distortion of Co(3)O(4), reduces defects of g‐C(3)N(4), and the facilitated photo‐generated charge separation by the Co(3)O(4)/g‐C(3)N(4) p–n junction all make contributions to the promoted electrochemical storage performance. This work may provide a new strategy to enhance the energy density of supercapacitors and expand the application range of photocatalytic materials. |
format | Online Article Text |
id | pubmed-7675041 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-76750412020-11-24 Photocatalysis‐Assisted Co(3)O(4)/g‐C(3)N(4) p–n Junction All‐Solid‐State Supercapacitors: A Bridge between Energy Storage and Photocatalysis Bai, Liqi Huang, Hongwei Zhang, Songge Hao, Lin Zhang, Zhili Li, Hongfen Sun, Li Guo, Lina Huang, Haitao Zhang, Yihe Adv Sci (Weinh) Full Papers Supercapacitors with the advantages of high power density and fast discharging rate have full applications in energy storage. However, the low energy density restricts their development. Conventional methods for improving energy density are mainly confined to doping atoms and hybridizing with other active materials. Herein, a Co(3)O(4)/g‐C(3)N(4) p–n junction with excellent capacity is developed and its application in an all‐solid‐state flexible device is demonstrated, whose capacity and energy density are considerably enhanced by simulated solar light irradiation. Under photoirradiation, the capacity is increased by 70.6% at the maximum current density of 26.6 mA cm(−2) and a power density of 16.0 kW kg(−1). The energy density is enhanced from 7.5 to 12.9 Wh kg(−1) with photoirradiation. The maximum energy density reaches 16.4 Wh kg(−1) at a power density of 6.4 kW kg(−1). It is uncovered that the lattice distortion of Co(3)O(4), reduces defects of g‐C(3)N(4), and the facilitated photo‐generated charge separation by the Co(3)O(4)/g‐C(3)N(4) p–n junction all make contributions to the promoted electrochemical storage performance. This work may provide a new strategy to enhance the energy density of supercapacitors and expand the application range of photocatalytic materials. John Wiley and Sons Inc. 2020-10-01 /pmc/articles/PMC7675041/ /pubmed/33240757 http://dx.doi.org/10.1002/advs.202001939 Text en © 2020 The Authors. Published by Wiley‐VCH GmbH This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Full Papers Bai, Liqi Huang, Hongwei Zhang, Songge Hao, Lin Zhang, Zhili Li, Hongfen Sun, Li Guo, Lina Huang, Haitao Zhang, Yihe Photocatalysis‐Assisted Co(3)O(4)/g‐C(3)N(4) p–n Junction All‐Solid‐State Supercapacitors: A Bridge between Energy Storage and Photocatalysis |
title | Photocatalysis‐Assisted Co(3)O(4)/g‐C(3)N(4) p–n Junction All‐Solid‐State Supercapacitors: A Bridge between Energy Storage and Photocatalysis |
title_full | Photocatalysis‐Assisted Co(3)O(4)/g‐C(3)N(4) p–n Junction All‐Solid‐State Supercapacitors: A Bridge between Energy Storage and Photocatalysis |
title_fullStr | Photocatalysis‐Assisted Co(3)O(4)/g‐C(3)N(4) p–n Junction All‐Solid‐State Supercapacitors: A Bridge between Energy Storage and Photocatalysis |
title_full_unstemmed | Photocatalysis‐Assisted Co(3)O(4)/g‐C(3)N(4) p–n Junction All‐Solid‐State Supercapacitors: A Bridge between Energy Storage and Photocatalysis |
title_short | Photocatalysis‐Assisted Co(3)O(4)/g‐C(3)N(4) p–n Junction All‐Solid‐State Supercapacitors: A Bridge between Energy Storage and Photocatalysis |
title_sort | photocatalysis‐assisted co(3)o(4)/g‐c(3)n(4) p–n junction all‐solid‐state supercapacitors: a bridge between energy storage and photocatalysis |
topic | Full Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7675041/ https://www.ncbi.nlm.nih.gov/pubmed/33240757 http://dx.doi.org/10.1002/advs.202001939 |
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