The results from SEM, XRD, and UV absorbing spectra show that the reduction happens between the aldehyde and the ammonia-silver solution in the straight plating, but Ag rep...

• 在直接镀银工艺中,发生地是醛基与银氨液的还原反应,而在预先镀镍再镀银的工艺中,银先与镍进行置换反应,然后再与醛基发生氧化还原反应。