Varied hydrogen evolution reaction properties of nickel phosphide nanoparticles with different compositions in acidic and alkaline conditions

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• 作者：Lei Wan ; Jinfeng Zhang ; Yaqiong Chen ; Cheng Zhong…
• 刊名：Journal of Materials Science
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：52
• 期：2
• 页码：804-814
• 全文大小：2,228 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Materials Science
  Characterization and Evaluation Materials
  Polymer Sciences
  Continuum Mechanics and Mechanics of Materials
  Crystallography
  Mechanics
  
• 出版者：Springer Netherlands
• ISSN：1573-4803
• 卷排序：52

文摘

This paper introduces HER activity of a string of Ni–P nanoparticles. The hydrogen evolution reaction (HER) activity of different Ni–P nanoparticles hinges on elemental ratios of nickel to phosphorus and nickel phosphide phases through annealing processes, which lead to utter diverse HER performances in H₂SO₄ and NaOH. The sample annealed under 350 °C by 4 h, mainly comprised by Ni₃P and Ni₁₂P₅, shows overpotential of 333 mV to achieve 100 mA·cm−2 (η₁₀₀ = 333 mV) current density in acidic condition, whereas in alkaline condition, the non-heat-treated sample, mainly formed by Ni₁₂P₅ and Ni₂P, shows the best HER performance. Ni–P nanoparticles have also displayed distinguished durability in both H₂SO₄ and NaOH. The superior HER activity and durability are supported by a series of characterizations and stem from Ni–P nanoparticles’ nature, including their morphology, good ensemble effect between nickel and phosphorus, and anti-corrosive quality.