Synthesis of Nanosized Copper Powder by an Aqueous Route
- Cite this article as:
- Sinha, A., Das, S.K., Kumar, T.V.V. et al. Journal of Materials Synthesis and Processing (1999) 7: 373. doi:10.1023/A:1021818014207
Nanostructured, crystalline copper powder was produced at ambient temperature by aqueous reduction of a copper salt by sodium borohydride. Conditions were optimized to produce boron-free copper powder with an average particle diameter of 200 nm, surface area of 5.48 m * m/g, and oxygent content of 0.155%. The effects of different experimental conditions on average particle size of the powder were also studied. The sintering phenomenon exhibited by produced copper particles at 100°C may be attributed to the low oxygen content of the powder along with other size variation-dependent factors.