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Perovskite CsCuClxBr3-x Microcrystals: Band Structure, Photochemical Stability, and Photocatalytic Properties

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Autorschaft

  • Shuang Chao Tang
  • Yan Jie Li
  • Jing Yang
  • Ting Zhao
  • Detlef W. Bahnemann

Organisationseinheiten

Externe Organisationen

  • North China Electric Power University (NCEPU)
  • Guangxi University
  • A-STAR
  • Graduate University of Chinese Academy of Sciences
  • National Center for Nanoscience and Technology
  • University of Science and Technology of China
  • Staatliche Universität Sankt Petersburg

Details

OriginalspracheEnglisch
Seitenumfang11
FachzeitschriftCHEMSUSCHEM
PublikationsstatusAngenommen/Im Druck - 23 Dez. 2024

Abstract

Although Pb-based metal halide perovskites (MHPs) have excellent photoelectric characteristics, its toxicity remains a limiting factor for its widespread application. In the paper, a series of CsCuClxBr3-x (x=1, 2, 3) MHPs microcrystals were developed and their hydrogen evolution performance in ethanol and HX (X=Cl, Br) were also studied. Among them, CsCuCl3 microcrystals exhibit high hydrogen evolution performance in both HX and ethanol, attributed to its longest average lifetime and suitable band structure. Additionally, the effect of different sacrificial agents on photocatalytic hydrogen production indicates that the photogenerated hole (h+) plays a critical role. MHPs can maintain a dynamic equilibrium of dissolution and precipitation in HX saturated aqueous solutions, thereby overcoming the stability issues associated with perovskite. The phase transition of CsCuClxBr3-x during photocatalysis is monitored by XRD technique. CsCuCl3 shows high stability in saturated HCl aqueous solution, and excellent photocatalytic performance with a hydrogen production rate of CsCuCl3 microcrystals reached 103.98 μmol g−1 at 210 min. Our study expands the development prospects of CsCuCl3 in the field of photocatalytic solar fuel generation.

ASJC Scopus Sachgebiete

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Perovskite CsCuClxBr3-x Microcrystals: Band Structure, Photochemical Stability, and Photocatalytic Properties. / Tang, Shuang Chao; Li, Yan Jie; Yang, Jing et al.
in: CHEMSUSCHEM, 23.12.2024.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Tang, SC, Li, YJ, Yang, J, Zhao, T, Tian, J, Wang, YJ, Ji, ZY, Li, Y, Dai, YT, He, T, Zhang, YW, Emeline, AV, Pang, Q, Bahnemann, DW & Pan, JH 2024, 'Perovskite CsCuClxBr3-x Microcrystals: Band Structure, Photochemical Stability, and Photocatalytic Properties', CHEMSUSCHEM. https://doi.org/10.1002/cssc.202402094
Tang, S. C., Li, Y. J., Yang, J., Zhao, T., Tian, J., Wang, Y. J., Ji, Z. Y., Li, Y., Dai, Y. T., He, T., Zhang, Y. W., Emeline, A. V., Pang, Q., Bahnemann, D. W., & Pan, J. H. (Angenommen/im Druck). Perovskite CsCuClxBr3-x Microcrystals: Band Structure, Photochemical Stability, and Photocatalytic Properties. CHEMSUSCHEM. https://doi.org/10.1002/cssc.202402094
Tang SC, Li YJ, Yang J, Zhao T, Tian J, Wang YJ et al. Perovskite CsCuClxBr3-x Microcrystals: Band Structure, Photochemical Stability, and Photocatalytic Properties. CHEMSUSCHEM. 2024 Dez 23. doi: 10.1002/cssc.202402094
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abstract = "Although Pb-based metal halide perovskites (MHPs) have excellent photoelectric characteristics, its toxicity remains a limiting factor for its widespread application. In the paper, a series of CsCuClxBr3-x (x=1, 2, 3) MHPs microcrystals were developed and their hydrogen evolution performance in ethanol and HX (X=Cl, Br) were also studied. Among them, CsCuCl3 microcrystals exhibit high hydrogen evolution performance in both HX and ethanol, attributed to its longest average lifetime and suitable band structure. Additionally, the effect of different sacrificial agents on photocatalytic hydrogen production indicates that the photogenerated hole (h+) plays a critical role. MHPs can maintain a dynamic equilibrium of dissolution and precipitation in HX saturated aqueous solutions, thereby overcoming the stability issues associated with perovskite. The phase transition of CsCuClxBr3-x during photocatalysis is monitored by XRD technique. CsCuCl3 shows high stability in saturated HCl aqueous solution, and excellent photocatalytic performance with a hydrogen production rate of CsCuCl3 microcrystals reached 103.98 μmol g−1 at 210 min. Our study expands the development prospects of CsCuCl3 in the field of photocatalytic solar fuel generation.",
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T2 - Band Structure, Photochemical Stability, and Photocatalytic Properties

AU - Tang, Shuang Chao

AU - Li, Yan Jie

AU - Yang, Jing

AU - Zhao, Ting

AU - Tian, Jie

AU - Wang, Yan Jie

AU - Ji, Zhuo Yu

AU - Li, Yu

AU - Dai, Yi Tao

AU - He, Tao

AU - Zhang, Yong Wei

AU - Emeline, Alexei V.

AU - Pang, Qi

AU - Bahnemann, Detlef W.

AU - Pan, Jia Hong

N1 - Publisher Copyright: © 2024 Wiley-VCH GmbH.

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Y1 - 2024/12/23

N2 - Although Pb-based metal halide perovskites (MHPs) have excellent photoelectric characteristics, its toxicity remains a limiting factor for its widespread application. In the paper, a series of CsCuClxBr3-x (x=1, 2, 3) MHPs microcrystals were developed and their hydrogen evolution performance in ethanol and HX (X=Cl, Br) were also studied. Among them, CsCuCl3 microcrystals exhibit high hydrogen evolution performance in both HX and ethanol, attributed to its longest average lifetime and suitable band structure. Additionally, the effect of different sacrificial agents on photocatalytic hydrogen production indicates that the photogenerated hole (h+) plays a critical role. MHPs can maintain a dynamic equilibrium of dissolution and precipitation in HX saturated aqueous solutions, thereby overcoming the stability issues associated with perovskite. The phase transition of CsCuClxBr3-x during photocatalysis is monitored by XRD technique. CsCuCl3 shows high stability in saturated HCl aqueous solution, and excellent photocatalytic performance with a hydrogen production rate of CsCuCl3 microcrystals reached 103.98 μmol g−1 at 210 min. Our study expands the development prospects of CsCuCl3 in the field of photocatalytic solar fuel generation.

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