【摘要】 在0.05 cm²的玻碳材料上利用双脉冲法电沉积纳米晶体镍。在主要成分为300 g/L NiSO₄·6H₂O,45 g/L NiCl₂·6H₂O,40 g/L H₃BO₃,5 g/L C₇H₅NO₃S,0.05 g/L C₁₂H₂₅NaO₄S的镀液中,把晶粒粒径当成研究标准,通过调整脉冲工艺参数,得到最佳工艺条件,即脉冲平均电流密度9 A/dm²、脉冲占空比r_正=30%、r_反=10%、T_正=100 ms、T_反=10 ms、脉冲频率1 kHz、镀液θ为55℃、pH为1.5。X-射线衍射结果表明,在最佳工艺条件下,利用双脉冲法在玻碳材料上获得了平均粒径在18 nm的纳米晶体镍。更多还原

【Abstract】 In this paper,nanocrystalline nickel was electrodeposited on the glassy carbon material with a size of 0.05 cm² by double pulse method.The main components of the plating bath were NiSO₄·6H₂O 300 g/L,NiCl₂·6H₂O 45 g/L,H₃BO₃ 40 g/L,C₇H₅NO₃S 5 g/L,C₁₂H₂₅NaO₄S 0.05 g/L.In this plating bath,grain size was used as the research standard,the optimum process conditions were obtained by adjusting the pulse process parameters,and the specific results were as follows:the average pulse current density was 9 A/dm²,pulse duty ratio r+= 30%,r-=10%,T+=100 ms,T-=10 ms,pulse frequency was 1 kHz,bath temperature was 55 ℃ and pH=1.5.The XRD results showed that under the optimum condition,the nanocrystal nickel with an average grain size of 18 nm could be obtained on glassy carbon material by double pulse method.更多还原