Highly efficient and cost-efficient catalysts for overall water splitting are essential for practical applications; however, it is challenging to manufacture such catalysts. Herein, we report the fabrication of a cost-effective electrocatalyst consisting of FeCoNiP alloy nanoparticles that are integrated on vertically aligned phosphorus-doped single-walled carbon nanotubes (VPSWCNTs) on Au electrode (FeCoNiP/VPSWCNTs/Au). The catalyst exhibited excellent catalytic performance in 1.0 M KOH for hydrogen evolution reaction (HER) (overpotential of 147 mV and Tafel slope of 64 mV dec −1 ) and oxygen evolution reaction (OER) (overpotential of 280 mV and Tafel slope of 43 mV dec −1 ) with the current density of 10 mA cm −2 . FeCoNiP/VPSWCNTs/Au exhibited good stability and activity for at least 10 h. These results indicate that FeCoNiP/VPSWCNTs/Au can be used as a cost-effective and earth-abundant non-noble-metal efficient catalyst for overall water splitting...

中文翻译：

---

FeCoNiP合金纳米颗粒集成在垂直排列的掺磷单壁碳纳米管上，用于总水分解

对于实际应用而言，高效的，具有成本效益的催化剂对于整个水的分解至关重要。然而，制造这样的催化剂具有挑战性。在这里，我们报告了由FeCoNiP合金纳米粒子组成的具有成本效益的电催化剂的制造，该纳米粒子集成在Au电极上的垂直排列的磷掺杂单壁碳纳米管（VPSWCNTs）上（FeCoNiP / VPSWCNTs / Au）。该催化剂在1.0 M KOH中表现出优异的催化性能，用于氢气析出反应（HER）（过电势147 mV和Tafel斜率64 mV dec -1）和氧气析出反应（OER）（过电势280 mV和Tafel斜率43 mV dec -1），电流密度为10 mA cm -2。FeCoNiP / VPSWCNTs / Au在至少10小时内表现出良好的稳定性和活性。