The Lattice Change of Ni-P Layer Coated on Single-Walled Carbon Nanotubes
The electroless deposition is an excellent method for the preparation of the CNTs with Ni-P layers. Pristine CNTs were ﬁrst oxygen-functionalized by treating them with a mixture of concentrated (HNO3 :H2SO4=1:3) acids. The SWNTs were obtained in the suspension of purification solution, In this work, the heat-treatment at 400°С transformed the amorphous Ni-P layer into the nanocrystalline Ni-P (crystalline Ni and Ni3P intermetallic compound) layer. The Ni-P-SWNTs before and after heat-treatment were studied using XRD and SAED. It is observed that the lattice parameters of Ni-P layers has difference from the bulk’s, indicting that the lattice change has taken place.
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
W. X. Li et al., "The Lattice Change of Ni-P Layer Coated on Single-Walled Carbon Nanotubes", Advanced Materials Research, Vols. 194-196, pp. 467-470, 2011