In:
ChemSusChem, Wiley, Vol. 9, No. 9 ( 2016-05-10), p. 1010-1019
Abstract:
A precious‐metal‐free cathode catalyst, MnO 2 nanorod‐decorated mesoporous ZSM‐5 zeolite nanocomposite (MnO 2 / m‐ZSM‐5), has been successfully synthesized by a hydrothermal and electrostatic interaction approach for efficient electrochemical catalysis of the oxygen reduction reaction (ORR). The active MnOOH species, that is, Mn 4+ /Mn 3+ redox couple and Brønsted acid sites on the mesoporous ZSM‐5 matrix facilitate an approximately 4 e − process for the catalysis of the ORR comparable to commercial 20 wt % Pt/C. Stable electrocatalytic activity with 90 % current retention after 5000 cycles, and more importantly, excellent methanol tolerance is observed. Synergetic catalytic effects between the MnO 2 nanorods and the mesoporous ZSM‐5 matrix are proposed to account for the high electrochemical catalytic performance.
Type of Medium:
Online Resource
ISSN:
1864-5631
,
1864-564X
DOI:
10.1002/cssc.201600012
Language:
English
Publisher:
Wiley
Publication Date:
2016
detail.hit.zdb_id:
2411405-4
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