▌Strategic design and mechanistic unveiling of Ni-based S-scheme heterojunctions for efficient CO2 photoreduction to C1 products: Coordination chemistry, spectroscopic evidence, and future directions
Ni 基 S 型異質結的策略設計與機制揭示：用於高效 CO₂ 光還原生成 C1 產物——配位化學、光譜證據與未來方向
M. Malhotra, P. Singh, Q. van Le, A. A. P. Khan, K. P. Katin, S. Kaya, C. Hu, V. H. Nguyen* and P. Raizada*
https://doi.org/10.1016/j.ccr.2025.217179
SEED Member: C. Hu
Major Contributions
1. This review systematically examines the strategic design principles of Ni-based S-scheme heterojunctions for CO₂ photoreduction, demonstrating how coordination chemistry and electronic structure tuning govern selectivity toward C1 products (CO, CH₄, HCOOH).
2. Spectroscopic evidence (EPR, in situ FTIR, transient absorption) is compiled to mechanistically distinguish S-scheme charge transfer from Type-II heterojunctions, explaining enhanced redox capability for efficient CO₂ activation and reduction.
3. Future directions including ligand design, defect engineering, and interface optimization are outlined, providing a roadmap for developing next-generation Ni-based S-scheme photocatalysts for sustainable solar fuel production.
主要貢獻
1. 本綜述系統探討 Ni 基 S 型異質結用於 CO₂ 光還原的策略設計原則，闡明配位化學與電子結構調控如何決定 C1 產物（CO、CH₄、HCOOH）選擇性。
2. 彙整光譜證據（EPR、原位 FTIR、瞬態吸收）機制性地區分 S 型電荷轉移與 Type-II 異質結，解釋增強的氧化還原能力實現高效 CO₂ 活化與還原。
3. 概述未來方向包括配體設計、缺陷工程與界面優化，為開發下一代 Ni 基 S 型光催化劑用於永續太陽能燃料生產提供路線圖。
