Nano-Micro Letters, Volume. 16, Issue 1, 175(2024)

Accelerating Oxygen Electrocatalysis Kinetics on Metal–Organic Frameworks via Bond Length Optimization

Fan He1, Yingnan Liu1, Xiaoxuan Yang1, Yaqi Chen1, Cheng-Chieh Yang5, Chung-Li Dong5, Qinggang He1, Bin Yang1, Zhongjian Li1, Yongbo Kuang3, Lecheng Lei1, Liming Dai6, and Yang Hou1,2,4、*
Author Affiliations
  • 1Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
  • 2Institute of Zhejiang University - Quzhou, Quzhou, 324000, People’s Republic of China
  • 3Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People’s Republic of China
  • 4School of Biological and Chemical Engineering, NingboTech University, Ningbo 315100, People’s Republic of China
  • 5Department of Physics, Tamkang University, New Taipei, 25137 Taiwan, People’s Republic of China
  • 6Australian Carbon Materials Centre (A-CMC), School of Chemical Engineering, University of New South Wales, Sydney, NSW 2051, Australia
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    Metal–organic frameworks (MOFs) have been developed as an ideal platform for exploration of the relationship between intrinsic structure and catalytic activity, but the limited catalytic activity and stability has hampered their practical use in water splitting. Herein, we develop a bond length adjustment strategy for optimizing naphthalene-based MOFs that synthesized by acid etching Co-naphthalenedicarboxylic acid-based MOFs (donated as AE-CoNDA) to serve as efficient catalyst for water splitting. AE-CoNDA exhibits a low overpotential of 260 mV to reach 10 mA cm-2 and a small Tafel slope of 62 mV dec-1 with excellent stability over 100 h. After integrated AE-CoNDA onto BiVO4, photocurrent density of 4.3 mA cm-2 is achieved at 1.23 V. Experimental investigations demonstrate that the stretched Co–O bond length was found to optimize the orbitals hybridization of Co 3d and O 2p, which accounts for the fast kinetics and high activity. Theoretical calculations reveal that the stretched Co–O bond length strengthens the adsorption of oxygen-contained intermediates at the Co active sites for highly efficient water splitting.


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    Fan He, Yingnan Liu, Xiaoxuan Yang, Yaqi Chen, Cheng-Chieh Yang, Chung-Li Dong, Qinggang He, Bin Yang, Zhongjian Li, Yongbo Kuang, Lecheng Lei, Liming Dai, Yang Hou. Accelerating Oxygen Electrocatalysis Kinetics on Metal–Organic Frameworks via Bond Length Optimization[J]. Nano-Micro Letters, 2024, 16(1): 175

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    Paper Information

    Category: Research Articles

    Received: Dec. 17, 2023

    Accepted: Feb. 20, 2024

    Published Online: Apr. 29, 2024

    The Author Email: Hou Yang (