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Controllable Synthesis of Zinc‐Substituted α‐ and β‐Nickel Hydroxide Nanostructures and Their Collective Intrinsic Properties
Author(s) -
Hu Bo,
Chen ShaoFeng,
Liu ShuJuan,
Wu QingSong,
Yao WeiTang,
Yu ShuHong
Publication year - 2008
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200800458
Subject(s) - zinc , hydroxide , nickel , zinc hydroxide , nanostructure , materials science , precipitation , inorganic chemistry , layered double hydroxides , chemical engineering , nanotechnology , chemistry , metallurgy , physics , meteorology , engineering
A new controllable homogeneous precipitation approach has been developed to synthesize zinc‐substituted nickel hydroxide nanostructures with different Zn contents from a zinc nanostructured reactant. As typical layered double hydroxides (LDHs), zinc‐substituted nickel hydroxide nanostructures can be formulated as NiZn x (Cl) y (OH) 2(1+ x )− y ⋅ z H 2 O ( x =0.34–0.89, y =0–0.24, z =0–1.36). The structure and morphology of zinc‐substituted nickel hydroxide nanostructures can be systematically controlled by adjustment of the zinc content. The effects of temperature and the amounts of ammonia and zinc nanostructured precursor on the reaction were systematically investigated. In our new method, although zinc‐substituted α‐and β‐nickel hydroxides have the typical 3D flowerlike architecture and stacks‐of‐pancakes nanostructures, respectively, their growth processes are different from those previously reported. A coordinative homogeneous precipitation mechanism is proposed to explain the formation process of zinc‐substituted nickel hydroxide nanostructures. The zinc‐substituted nickel hydroxide nanostructures exhibit some interesting intrinsic properties, and changing the zinc content can effectively tune their optical, magnetic, and electrical properties.