Pt Atoms/Clusters on Ni-phytate-sensitized Carbon Nitride for Enhanced NIR-light-driven Overall Water Splitting beyond 800 nm

Yuanyong Huang; Di Li; Shuo Feng; Yujing Jia; Shuhui Guo; Xiaojie Wu; Min Chen; Weidong Shi

doi:10.1002/anie.202212234

Pt Atoms/Clusters on Ni-phytate-sensitized Carbon Nitride for Enhanced NIR-light-driven Overall Water Splitting beyond 800 nm

Angew Chem Int Ed Engl. 2022 Nov 7;61(45):e202212234. doi: 10.1002/anie.202212234. Epub 2022 Sep 29.

Authors

Yuanyong Huang¹, Di Li², Shuo Feng¹, Yujing Jia¹, Shuhui Guo¹, Xiaojie Wu¹, Min Chen¹, Weidong Shi¹

Affiliations

¹ School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China.
² Institute for Energy Research, Jiangsu University, Zhenjiang, 212013, P. R. China.

PMID: 36083578
DOI: 10.1002/anie.202212234

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-Ni_1.1 @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.

Keywords: Near-Infrared (NIR); Ni-Phytate (PA-Ni); Overall Water Splitting; Polymeric Carbon Nitride (PCN); Pt Single Atoms/Clusters (Pt-SACs).

Abstract

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