Pt Atoms/Clusters on Ni‐phytate‐sensitized Carbon Nitride for Enhanced NIR‐light‐driven Overall Water Splitting beyond 800 nm. (30th September 2022)

• Record Type: Journal Article
• Authors: Huang, Yuanyong; Li, Di; Feng, Shuo; Jia, Yujing; Guo, Shuhui; Wu, Xiaojie; Chen, Min; Shi, Weidong
• Is Part Of: Angewandte Chemie. Volume 134:Number 45(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-09-30
• Subjects: Near-Infrared (NIR) -- Ni-Phytate (PA-Ni) -- Overall Water Splitting -- Polymeric Carbon Nitride (PCN) -- Pt Single Atoms/Clusters (Pt-SACs); Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.202212234
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Near‐infrared (NIR) light‐driven overall water splitting beyond 800 nm remains a high‐priority target yet great challenge. Here we report that efficient utilization of photogenerated electrons in a photosensitized system prepared by site‐selective photodeposition of platinum single atoms/clusters (Pt‐SACs) on Ni‐phytate (PA‐Ni)‐sensitized polymeric carbon nitride (PCN). The optimal catalyst presents simultaneous hydrogen (H2 ) and oxygen (O2 ) evolution with an H2 evolution amount of 1.4 μmol at λ>800 nm for 24 hours, which its activity was approximately 140 times higher than that of a system without Pt‐SAC modification (PA‐Ni1.1 @PCN). This work represents the first NIR‐light responsive photosensitized system for overall water splitting, and may open an avenue for precisely manipulating cocatalyst positions at the atomic level to improve NIR‐light‐driven overall water splitting via photosensitization. Abstract : A NIR light‐driven photocatalyst for overall water splitting was constructed by site‐selective photodeposition of platinum single atoms/clusters (Pt‐SACs) on Ni‐phytate (PA‐Ni)‐sensitized polymeric carbon nitride (PCN).