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Journal of Inorganic Materials, Volume. 35, Issue 10, 1149(2020)

Hydrothermal Synthesized Nickel Copper Composite Phosphides as Bifunctional Electrocatalysts for Hydrogen Evolution and Hydrazine Oxidation

Zhao LI1... Qiangqiang SUN2, Suoqian CHEN2, Chunsheng ZHOU2, Jing CAO1, Yongfeng WANG1 and Yanan WANG1 |Show fewer author(s)
Author Affiliations
  • 1School of Materials Engineering, Xi’an Aeronautical University, Xi’an 710077, China;
  • 2Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo University, Shangluo 726000, China
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    (a-c) FESEM images, (d) EDX spectra and (e) element mappings of NiCuP/NM electrode
    1. (a-c) FESEM images, (d) EDX spectra and (e) element mappings of NiCuP/NM electrode

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    (a) HRTEM image and (b) XRD pattern of NiCuP/NM electrocatalyst
    2. (a) HRTEM image and (b) XRD pattern of NiCuP/NM electrocatalyst

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    (a, c) LSV polarization curves and (b, d) Tafel curves of NiCuP/NM composite electrode towards HER (a, b) and HzOR (c, d)
    3. (a, c) LSV polarization curves and (b, d) Tafel curves of NiCuP/NM composite electrode towards HER (a, b) and HzOR (c, d)

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    (a) LSV polarization curves, (b) stability test by chronopotentiometry, (c) SEM image after 24 h hybrid electrolysis, (d) gas chromatography (GC) spectra of gas products for NiCuP/NM in the two-electrode system, and (e) the amount comparison of calculated H2 and measured H2
    4. (a) LSV polarization curves, (b) stability test by chronopotentiometry, (c) SEM image after 24 h hybrid electrolysis, (d) gas chromatography (GC) spectra of gas products for NiCuP/NM in the two-electrode system, and (e) the amount comparison of calculated H2 and measured H2

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    (a) CV curves at different scan rates (5, 10, 25, 50, 100, 200 mV∙s-1), (b) Coulomb curves of charge double-layer capacitance, (c) Nyquist plots, and (d) LSV curves by ECSA normalization of NiCu/NM towards HER
    5. (a) CV curves at different scan rates (5, 10, 25, 50, 100, 200 mV∙s-1), (b) Coulomb curves of charge double-layer capacitance, (c) Nyquist plots, and (d) LSV curves by ECSA normalization of NiCu/NM towards HER

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    SEM images of composite electrocatalysts with different ratios of Ni to Cu (a) 2 : 1; (b) 4 : 1; (c) 6 : 1; (d) 8 : 1; (e) 10 : 1
    S1. SEM images of composite electrocatalysts with different ratios of Ni to Cu (a) 2 : 1; (b) 4 : 1; (c) 6 : 1; (d) 8 : 1; (e) 10 : 1

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    SEM images of composite electrocatalysts prepared by different P doping concentrations (a) 10 mmol·L-1; (b) 20 mmol·L-1; (c) 30 mmol·L-1; (d)40 mmol·L-1
    S2. SEM images of composite electrocatalysts prepared by different P doping concentrations (a) 10 mmol·L-1; (b) 20 mmol·L-1; (c) 30 mmol·L-1; (d)40 mmol·L-1

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    SEM images of composite electrocatalysts prepared at different hydrothermal temperatures (a) 100 ℃; (b) 120 ℃; (c) 140 ℃; (d) 160 ℃; (e)180 ℃
    S3. SEM images of composite electrocatalysts prepared at different hydrothermal temperatures (a) 100 ℃; (b) 120 ℃; (c) 140 ℃; (d) 160 ℃; (e)180 ℃

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    SEM images of composite electrocatalysts prepared with different hydrothermal time (a) 12 h; (b) 18 h; (c) 24 h; (d) 30 h
    S3. SEM images of composite electrocatalysts prepared with different hydrothermal time (a) 12 h; (b) 18 h; (c) 24 h; (d) 30 h

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    Zhao LI, Qiangqiang SUN, Suoqian CHEN, Chunsheng ZHOU, Jing CAO, Yongfeng WANG, Yanan WANG. Hydrothermal Synthesized Nickel Copper Composite Phosphides as Bifunctional Electrocatalysts for Hydrogen Evolution and Hydrazine Oxidation[J]. Journal of Inorganic Materials, 2020, 35(10): 1149

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    Paper Information

    Category: RESEARCH PAPER

    Received: Dec. 18, 2019

    Accepted: --

    Published Online: Mar. 15, 2021

    The Author Email:

    DOI:10.15541/jim20190640

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology