Bibliographic Details
| Title: |
A universal strategy: Rational construction of noble metal nanoparticle-shell/conducting polymer nanofiber-core electrodes with enhanced electrochemical performances. |
| Authors: |
Yang, Mingjin (AUTHOR), Sun, Li-Peng (AUTHOR), Chen, Boxu (AUTHOR), Liao, Jingwen (AUTHOR) jw.liao@giat.ac.cn, Yuan, Hai (AUTHOR), Guan, Bai-Ou (AUTHOR) tguanbo@jnu.edu.cn |
| Source: |
Nanotechnology. 10/30/2020, Vol. 31 Issue 44, p1-9. 9p. |
| Subjects: |
Polymer electrodes, Electrochemical electrodes, Organic conductors, Precious metals, Electrode performance, Otoacoustic emissions, Carbon nanofibers, Platinum nanoparticles |
| Abstract: |
To address a challenge for decoration of noble metal nanoparticles (NMNPs)-shell on conducting polymer nanofiber (CPNF) electrodes (i.e. NMNP-shell/CPNF-core electrodes) for boosting electrochemical performances, a two-step strategy comprising chemical pre-deposition and electrochemical deposition is designed. The strategy shows a high universality in terms of the diversity of NMNP-shell elements (single-element: AgNP-shell, AuNP-shell, PtNP-shell, PdNP-shell; multi-element: Au/Pt/PdNP-shell) and the independence of conductive substrates of electrodes. The shells are composed of high-density NMNPs and have strong adhesion to CPNF-cores. It is demonstrated that in response to a specific applied electrical stimulus, the resulting low doping level of CPNFs facilitates the generation of high-density nucleation sites (small NMNPs) by chemical pre-deposition (as high capability of electron transfer and low resistance to electron transfer from CP chains to NM ions), which is indispensable for the formation of NMNP-shells on CPNF-cores by electrochemical deposition. The decoration of NMNP-shells can significantly enhance the electrochemical performances of CPNF electrodes. Moreover, the great practicality and reliability of NMNP-shell/CPNF-core electrodes in use as an electrocatalytic platform are confirmed. This universal strategy opens up a new avenue to construct high-dimension shell/core-nanostructured electrodes. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
