Issue 65, 2020, Issue in Progress

One-step synthesis of Ni(OH)2/MWCNT nanocomposites for constructing a nonenzymatic hydroquinone/O2 fuel cell

Abstract

In this work, a H-type hydroquinone/O2 fuel cell was assembled and shows high energy density in neutral phosphate buffer solution at moderate temperature. The anodic material, Ni(OH)2/MWCNTs, was synthesized by a one-step hydrothermal synthesis method to oxidize hydroquinone. The cathode material, Pt/MWCNTs, was obtained by an electrodeposition method, and shows great oxygen reduction reaction (ORR) activity. The properties and the morphology of Ni(OH)2/MWCNT nanocomposites were characterized by TEM, XPS, EDS-mapping and electrochemical methods, like cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The results show that Ni(OH)2/MWCNTs can effectively oxidize hydroquinone and play a dominant role in enhancing the fuel cell performance. The nonenzymatic fuel cell possesses a high power density of 0.24 mW cm−2 at a cell potential of 0.49 V.

Graphical abstract: One-step synthesis of Ni(OH)2/MWCNT nanocomposites for constructing a nonenzymatic hydroquinone/O2 fuel cell

Article information

Article type
Paper
Submitted
20 Jan 2020
Accepted
19 Oct 2020
First published
28 Oct 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 39447-39454

One-step synthesis of Ni(OH)2/MWCNT nanocomposites for constructing a nonenzymatic hydroquinone/O2 fuel cell

Y. Wu, X. Yang, S. Liu, Y. Xing, J. Peng, Y. Peng, G. Ni and X. Jin, RSC Adv., 2020, 10, 39447 DOI: 10.1039/D0RA00622J

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