Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2016, Vol. 27 ›› Issue (4): 97 doi: 10.1007/s41365-016-0098-2


Amyloid fibril-supported Pd nanoparticles as electrocatalyst for hydrogen peroxide reduction

Li-Xia Kong 1, Lan-Jie Wang  1, Lan-Lan Su 1, Zhi-Jie Zhao 1, Zhong-Dan Yan 1, Gong-Jun Zhang 2, Xing-Fei Zhou 1   

  1. 1 Faculty of Science, Ningbo University, Ningbo 315211, China
    2 Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
  • Contact: Xing-Fei Zhou
  • Supported by:

    This work was supported by the Natural Nature Science Foundation of China (No. 11474173), the Natural Science Foundation of Zhejiang province (Nos. Y14A040006 and LQ14F040002), Ningbo Natural Science Foundation (Nos. 2014A610202 and 2014A610149) and the K. C. Wong Magna Fund of Ningbo University.

Li-Xia Kong, Lan-Jie Wang, Lan-Lan Su, Zhi-Jie Zhao, Zhong-Dan Yan, Gong-Jun Zhang, Xing-Fei Zhou. Amyloid fibril-supported Pd nanoparticles as electrocatalyst for hydrogen peroxide reduction.Nuclear Science and Techniques, 2016, 27(4): 97     doi: 10.1007/s41365-016-0098-2


Palladium nanoparticles (Pd NPs) were fabricated by using insulin amyloid fibrils (INSAFs) as biotemplates. Atomic force microscopy measurements showed that ultra-small Pd NPs were well adsorbed and dispersed on surfaces of INSAFs. X-ray photoelectron spectroscopy confirmed the partial reduction of Pd ion into metallic Pd(0) probably due to the presence of Cys groups on surface of the insulin fibrils. The electrochemical performance of Pd/INSAFs to reduction of H2O2 was further evaluated by cyclic voltammetry. The remarkably high electrocatalytic activity, low detection limitation and excellent stability make the Pd/INSAFs a promising bio-nanoelectrocatalyst.

Key words: Palladium nanoparticles ; Amyloid fibrils , Cyclic voltammetry,  Nanoelectrocatalyst ; Hydrogen peroxide