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Issue 34, 2016
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Phosphorus doped single wall carbon nanotubes loaded with nanoparticles of iron phosphide and iron carbide for efficient hydrogen evolution

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Abstract

The development of low-cost and high-performance non-precious metal electrocatalysts for the hydrogen evolution reaction (HER) is highly desirable for the wide range of applications of molecular hydrogen as a clean renewable energy source. Here phosphorus doped single wall carbon nanotubes loaded with nanoparticles of iron carbide and iron phosphide are synthesized cost-effectively and time-efficiently using a one-pot and one-step chemical vapor deposition method, and exhibit superb catalytic activity for the HER. The nanohybrid electrocatalyst produces a current density of 20 mA cm−2 at an overpotential of 157 mV in acid solution and 331 mV in basic solution. The Tafel slope is 60.8 mV dec−1 in acid solution and 87.6 mV dec−1 in basic solution. The catalyst can work stably in both acidic and basic solutions with 100% faradaic efficiency. The superb performance correlates with the doping of single wall carbon nanotubes with phosphorus, and the synergistic effect of iron phosphide and iron carbide.

Graphical abstract: Phosphorus doped single wall carbon nanotubes loaded with nanoparticles of iron phosphide and iron carbide for efficient hydrogen evolution

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Publication details

The article was received on 25 May 2016, accepted on 28 Jul 2016 and first published on 28 Jul 2016


Article type: Paper
DOI: 10.1039/C6TA04329A
Citation: J. Mater. Chem. A, 2016,4, 13336-13343
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    Phosphorus doped single wall carbon nanotubes loaded with nanoparticles of iron phosphide and iron carbide for efficient hydrogen evolution

    C. Lv, Q. Yang, Q. Huang, Z. Huang, H. Xia and C. Zhang, J. Mater. Chem. A, 2016, 4, 13336
    DOI: 10.1039/C6TA04329A

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