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Issue 19, 2018
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Ultrathin dendritic IrTe nanotubes for an efficient oxygen evolution reaction in a wide pH range

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Abstract

The shape control of Ir-based nanostructured materials, which are considered as the state-of-the-art anode electrocatalyst candidates toward the oxygen evolution reaction (OER), has been rarely reported. Here, we reported an efficient synthesis of ultrathin dendritic IrTe nanotubes (NTs) via a galvanic replacement reaction using Te nanowires as the template at 190 °C for 1 h. The as-obtained IrTe NTs exhibited improved electrocatalytic activity and stability toward the OER with a much smaller overpotential of 290 mV and Tafel slope of 60.3 mV dec−1 to attain a current density of 10 mA cm−2 in acidic medium, compared with commercial IrO2 nanoparticles. Moreover, IrTe NTs also demonstrated enhanced electrocatalytic performances in neutral and alkaline media. The outstanding electrochemical properties of IrTe NTs in a wide pH range hold great promise in energy storage and conversion devices.

Graphical abstract: Ultrathin dendritic IrTe nanotubes for an efficient oxygen evolution reaction in a wide pH range

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Publication details

The article was received on 07 Feb 2018, accepted on 31 Mar 2018 and first published on 02 Apr 2018


Article type: Communication
DOI: 10.1039/C8TA01288A
Citation: J. Mater. Chem. A, 2018,6, 8855-8859
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    Ultrathin dendritic IrTe nanotubes for an efficient oxygen evolution reaction in a wide pH range

    Q. Shi, C. Zhu, D. Du, J. Wang, H. Xia, M. H. Engelhard, S. Feng and Y. Lin, J. Mater. Chem. A, 2018, 6, 8855
    DOI: 10.1039/C8TA01288A

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