Volume 133, Issue 41 pp. 22450-22456
Zuschrift

Electronic Modulation Caused by Interfacial Ni-O-M (M=Ru, Ir, Pd) Bonding for Accelerating Hydrogen Evolution Kinetics

Liming Deng

Liming Deng

College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016 China

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Prof. Feng Hu

Prof. Feng Hu

College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016 China

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Mingyue Ma

Mingyue Ma

College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016 China

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Shao-Chu Huang

Shao-Chu Huang

Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013 Taiwan

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Yixing Xiong

Yixing Xiong

College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016 China

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Prof. Han-Yi Chen

Prof. Han-Yi Chen

Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013 Taiwan

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Prof. Linlin Li

Prof. Linlin Li

College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016 China

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Prof. Shengjie Peng

Corresponding Author

Prof. Shengjie Peng

College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016 China

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First published: 23 August 2021
Citations: 32

Abstract

Designing definite metal-support interfacial bond is an effective strategy for optimizing the intrinsic activity of noble metals, but rather challenging. Herein, a series of quantum-sized metal nanoparticles (NPs) anchored on nickel metal–organic framework nanohybrids (M@Ni-MOF, M=Ru, Ir, Pd) are rationally developed through a spontaneous redox strategy. The metal-oxygen bonds between the NPs and Ni-MOF guarantee structural stability and sufficient exposure of the surface active sites. More importantly, such precise interfacial feature can effectively modulate the electronic structure of hybrids through the charge transfer of the formed Ni-O-M bridge and then improves the reaction kinetics. As a result, the representative Ru@Ni-MOF exhibits excellent hydrogen evolution reaction (HER) activity at all pH values, even superior to commercial Pt/C and recent noble-metal catalysts. Theoretical calculations deepen the mechanism understanding of the superior HER performance of Ru@Ni-MOF through the optimized adsorption free energies of water and hydrogen due to the interfacial-bond-induced electron redistribution.

Conflict of interest

The authors declare no conflict of interest.

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