Volume 57, Issue 51 pp. 16796-16800
Communication

Integration of Lanthanide–Transition-Metal Clusters onto CdS Surfaces for Photocatalytic Hydrogen Evolution

Rong Chen

Rong Chen

Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surface and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 China

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Zhi-Hao Yan

Zhi-Hao Yan

Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surface and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 China

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Prof. Xiang-Jian Kong

Corresponding Author

Prof. Xiang-Jian Kong

Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surface and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 China

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Prof. La-Sheng Long

Prof. La-Sheng Long

Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surface and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 China

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Prof. Lan-Sun Zheng

Prof. Lan-Sun Zheng

Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surface and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 China

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First published: 24 October 2018
Citations: 132

Graphical Abstract

Assembling lanthanide–transition-metal (4f–3d) clusters Ln52Ni56 (Ln=Eu, Pr, Nd and Gd) onto CdS composites achieved enhanced photocatalytic H2 production. Some Ni2+ ions in the clusters were exchanged by Cd2+ to form Ln52Ni56−xCdx/CdS composites. An Eu52Ni56−xCdx/CdS species shows the highest activity of 25 353 μmol h−1 g−1 and an apparent quantum efficiency of 42.4 %.

Abstract

Heterometallic lanthanide–transition-metal (4f–3d) clusters with well-defined crystal structures integrate multiple metal centers and provide a platform for achieving synergistic catalytic effects. Herein, we present a strategy for enhanced hydrogen evolution by loading atomically precise 4f–3d clusters Ln52Ni56 on a CdS photoabsorber surface. Interestingly, some Ni2+ ions in the clusters Ln52Ni56 were exchanged by the Cd2+ to form Ln52Ni56−xCdx/CdS composites. Photocatalytic studies show that the efficient synergistic multipath charge separation and transfer from CdS to the Eu52Ni56−xCdx cluster enable high visible-light-driven hydrogen evolution at 25 353 μmol h−1 g−1. This work provides the strategy to design highly active photocatalytic hydrogen evolution catalysts by assembling heterometallic 4f–3d clusters on semiconductor materials.

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