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https://hdl.handle.net/10356/154721
Title: | Ferroelectric-field accelerated charge transfer in 2D CuInP₂S₆ heterostructure for enhanced photocatalytic H₂ evolution | Authors: | Lin, Bo Chaturvedi, Apoorva Di, Jun You, Lu Lai, Chen Duan, Ruihuan Zhou, Jiadong Xu, Baorong Chen, Zihao Song, Pin Peng, Juan Ma, Bowen Liu, Haishi Meng, Peng Yang, Guidong Zhang, Hua Liu, Zheng Liu, Fucai |
Keywords: | Engineering::Materials | Issue Date: | 2020 | Source: | Lin, B., Chaturvedi, A., Di, J., You, L., Lai, C., Duan, R., Zhou, J., Xu, B., Chen, Z., Song, P., Peng, J., Ma, B., Liu, H., Meng, P., Yang, G., Zhang, H., Liu, Z. & Liu, F. (2020). Ferroelectric-field accelerated charge transfer in 2D CuInP₂S₆ heterostructure for enhanced photocatalytic H₂ evolution. Nano Energy, 76, 104972-. https://dx.doi.org/10.1016/j.nanoen.2020.104972 | Project: | MOE2016-T2-2-103 MOE2017- T2-1-162 MOE2019-T2-2-105 RG4/17 2017-T1-001-150 2017-T1-002-119 |
Journal: | Nano Energy | Abstract: | The development of ferroelectric photocatalytic materials with polarization electric field is a key approach to realize the spatial separation and fast transfer of charge carriers in visible-light-driven H2 evolution. Generally, replacing traditional 3D perovskite-type ferroelectric materials with 2D ferroelectric materials is disregarded as candidates for photocatalysis. Herein a 2D CuInP2S6 (CIPS) with room-temperature ferroelectricity (a Curie temperature of around 47 °C) is developed as a new photocatalyst, and 2D/2D heterojunction of CuInP2S6 nanosheet/g-C3N4 ultrathin flake (CIPS/CN) is constructed to further accelerate charge transfer. Benefitting from the synergetic action of the inner polarization electric field of CIPS and 2D/2D heterojunction, CIPS/CN displays a substantially accelerated charge transfer and significantly enhanced photocatalytic H2 evolution rate, which is up to 7.6 times by contrast with that of paraelectric-phase CIPS. This work would provide a new platform for the design of 2D ferroelectric photocatalytic system with highly-efficient charge transfer. | URI: | https://hdl.handle.net/10356/154721 | ISSN: | 2211-2855 | DOI: | 10.1016/j.nanoen.2020.104972 | Schools: | School of Materials Science and Engineering | Rights: | © 2020 Elsevier Ltd. All rights reserved. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | MSE Journal Articles |
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