The influences of acids on the surface of nickel foam and its effect on the growth of nickel sulfide are studied. Treated by sulfuric acid, oxalic acid, and phosphoric acid, three Ni foams are fabricated with different surface states containing different surface roughness and different surface layers with nickel salts. By controlling the reaction conditions, three Ni₃S₂ morphological structures with nanosheets, clustered nanosheets, and nanoparticles are designed on these preprocessed Ni foams. The applications of these Ni₃S₂/Ni electrodes for sodium ion batteries are examined in detail. The findings provide a new idea for the control of the solid–liquid reaction interface, which highly affect the morphologies of Ni₃S₂.

中文翻译：

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可调节钠存储量控制Ni3S2阳极的生长

研究了酸对泡沫镍表面的影响及其对硫化镍生长的影响。经过硫酸，草酸和磷酸处理，制得了三种具有不同表面状态的Ni泡沫，这些表面状态包含不同的表面粗糙度和不同的含镍盐的表面层。通过控制反应条件，在这些预处理的Ni泡沫上设计了具有纳米片，簇状纳米片和纳米颗粒的三种Ni ₃ S ₂形态结构。详细研究了这些Ni ₃ S ₂ / Ni电极在钠离子电池中的应用。这些发现为控制固液反应界面提供了新思路，这对Ni ₃的形貌有很大影响。S ₂。