Nickel hydroxide sulfate nanobelts: Hydrothermal synthesis, electrochemical property and conversion to porous NiO Nanobelts

摘要

In this paper, single-crystalline Ni(SO4)0.3(OH)1.4 nanocrystals could be synthesized on a large scale by a facile hydrothermal treatment without using templates or organic additives. Ammonia concentration played an important role for the composition, phase structure and shape control of the the Ni(SO4)0.3(OH)1.4 nanobelts. Electrochemical measurement revealed that the asprepared Ni(SO4)0.3(OH)1.4 nanobelts exhibited high specific capacity close to the theoretical capacity performance of β-Ni(OH)2. On the other hand, the single-crystalline porous nickel oxide nanobeltsnanobelts can be obtained through calcination of the Ni(SO4)0.3(OH)1.4. nanobelts.