Citation: Yin-Hua Zhu, Yong-Qi Ji, Jian-Bo Yang, Xin-Ying Xiang, Hua Mei, Yan Xu. Giant 28-nuclear water cluster-intercalated polyoxometalate-based photocatalyst with bandgap modulation for efficient CO₂ photoconversion[J]. Chinese Chemical Letters, ;2026, 37(9): 111412. doi: 10.1016/j.cclet.2025.111412 shu

Giant 28-nuclear water cluster-intercalated polyoxometalate-based photocatalyst with bandgap modulation for efficient CO₂ photoconversion

College of Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China

meihua@njtech.edu.cn

yanxu@njtech.edu.cn

Received Date: 29 March 2025
Revised Date: 26 May 2025
Accepted Date: 6 June 2025
Available Online: 6 June 2025

Figures(5)

Guest molecule intercalation is an effective strategy for engineering electron structures and enhancing photocatalytic CO₂ reduction. Our designed charge-transfer system incorporates 28 nuclear H₂O molecules as electron mediators within the POM-based photocatalyst, enabling efficient electron transport pathways. Comparative analysis of synthesized isostructural catalysts shows water-intercalated Na₇[Co₂(H₂O)₈(H₁₁CoP₈Mo₁₂O₆₂)]·44H₂O (abbr. compound 1) achieves exceptional CO₂ reduction activity (21,347.4 µmol g^-1 h^-1), outperforming anhydrous (C₄H₁₄N₂)₄[Co₂(H₁₀CoP₈Mo₁₂O₆₂)]·4H₂O (abbr. compound 2) by 68%. This work demonstrates that water intercalation simultaneously optimizes band structure and improves material stability, providing a novel paradigm for advanced photocatalytic system design.
- Reduced polyoxometalate-based catalyst,
- Photocatalytic CO₂ reduction,
- Water intercalation,
- Band gap regulation,
- Heterogeneous catalyst
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沈阳化工大学材料科学与工程学院沈阳 110142

Giant 28-nuclear water cluster-intercalated polyoxometalate-based photocatalyst with bandgap modulation for efficient CO2 photoconversion

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通讯作者: 陈斌, bchen63@163.com

Giant 28-nuclear water cluster-intercalated polyoxometalate-based photocatalyst with bandgap modulation for efficient CO₂ photoconversion