TY - JOUR
T1 - Unlocking Interfacial Interactions of In Situ Grown Multidimensional Bismuth-Based Perovskite Heterostructures for Photocatalytic Hydrogen Evolution
AU - Feng, Jianpei
AU - Mak, Chun Hong
AU - Jia, Guohua
AU - Han, Bin
AU - Shen, Hsin-Hui
AU - Santoso, Shella Permatasari
AU - Kai, Ji-Jung
AU - Yuan, Mingjian
AU - Song, Haisheng
AU - Colmenares, Juan Carlos
AU - Hsu, Hsien-Yi
N1 - Publisher Copyright:
© 2024 The Author(s). Advanced Energy Materials published by Wiley-VCH GmbH.
PY - 2024/11/15
Y1 - 2024/11/15
N2 - To combat the energy crisis and environmental pollution, developing renewable energy technology such as hydrogen (H2) production is necessary. The sulfur–iodine thermochemical cycle has high commercial potential in conducting hydrogen iodide (HI) splitting for H2 generation, but it requires high-temperature conditions. In comparison, photocatalytic HI splitting of halide perovskites is non-polluted and low-cost for H2 production at room temperature. Herein, an in situ constructed multidimensional bismuth (Bi)-based 3D/2D EDABiI5/MA3Bi2I9 perovskite heterojunction is developed first by synergistically integrating dimensionality control with heterostructure engineering. Accordingly, the optimal EDABiI5/MA3Bi2I9 without any co-catalysts exhibits the H2 evolution rate of 213.63 µmol h−1g−1 under irradiation. Equally importantly, interfacial dynamics of solid/solid and solid/liquid interfaces play a crucial role in photocatalytic performance. Therefore, using temperature-dependent transient photoluminescence and electrochemical voltammetric techniques, it is confirmed that the exciton transportation of EDABiI5/MA3Bi2I9 is accelerated by stronger electronic coupling arising from an enhanced overlap of electronic wavefunctions. Moreover, the effective diffusion coefficient and electron transfer rate of EDABiI5/MA3Bi2I9 demonstrate efficient heterogeneous electron transfer, resulting in improved photocatalytic hydrogen production. Consequently, the in situ formation of perovskite heterostructures studied by a combination of photophysical and electrochemical techniques provides new insights into green hydrogen evolution and interfacial interaction dynamics for commercial applications of solar-to-fuel technology.
AB - To combat the energy crisis and environmental pollution, developing renewable energy technology such as hydrogen (H2) production is necessary. The sulfur–iodine thermochemical cycle has high commercial potential in conducting hydrogen iodide (HI) splitting for H2 generation, but it requires high-temperature conditions. In comparison, photocatalytic HI splitting of halide perovskites is non-polluted and low-cost for H2 production at room temperature. Herein, an in situ constructed multidimensional bismuth (Bi)-based 3D/2D EDABiI5/MA3Bi2I9 perovskite heterojunction is developed first by synergistically integrating dimensionality control with heterostructure engineering. Accordingly, the optimal EDABiI5/MA3Bi2I9 without any co-catalysts exhibits the H2 evolution rate of 213.63 µmol h−1g−1 under irradiation. Equally importantly, interfacial dynamics of solid/solid and solid/liquid interfaces play a crucial role in photocatalytic performance. Therefore, using temperature-dependent transient photoluminescence and electrochemical voltammetric techniques, it is confirmed that the exciton transportation of EDABiI5/MA3Bi2I9 is accelerated by stronger electronic coupling arising from an enhanced overlap of electronic wavefunctions. Moreover, the effective diffusion coefficient and electron transfer rate of EDABiI5/MA3Bi2I9 demonstrate efficient heterogeneous electron transfer, resulting in improved photocatalytic hydrogen production. Consequently, the in situ formation of perovskite heterostructures studied by a combination of photophysical and electrochemical techniques provides new insights into green hydrogen evolution and interfacial interaction dynamics for commercial applications of solar-to-fuel technology.
KW - bismuth-based halide perovskite
KW - dimensionality control
KW - heterostructure engineering
KW - hydrogen evolution
KW - interfacial interaction dynamics
UR - http://www.scopus.com/inward/record.url?scp=85204008812&partnerID=8YFLogxK
U2 - 10.1002/aenm.202402785
DO - 10.1002/aenm.202402785
M3 - Article
AN - SCOPUS:85204008812
SN - 1614-6832
VL - 14
JO - Advanced Energy Materials
JF - Advanced Energy Materials
IS - 43
M1 - 2402785
ER -