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Malic acid assisted precursor route to hierarchical structured nickel oxide
Author(s) -
Wang Haizhen,
Qian Yitai
Publication year - 2010
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201000047
Subject(s) - thermogravimetric analysis , non blocking i/o , malic acid , nickel oxide , materials science , nickel , chemical engineering , scanning electron microscope , hydrothermal circulation , hydrothermal synthesis , energy dispersive x ray spectroscopy , oxide , nuclear chemistry , inorganic chemistry , chemistry , catalysis , metallurgy , citric acid , organic chemistry , composite material , engineering
Abstract A novel malic acid assisted precursor route to prepare NiO materials with novel hierarchical structures has been investigated in this work. The Ni‐based precursors can be synthesized by a malic acid‐assisted hydrothermal route, which have been characterized by powder X‐ray diffraction (XRD), field‐emission scanning electron microscopy (FE‐SEM), thermogravimetric analysis (TGA). NiO materials can be prepared via the thermal treatment of the precursor in ambient atmosphere. The XRD, SEM, Energy dispersive X‐ray spectroscopy (EDS) and UV‐Vis spectroscopy of the NiO materials were also examined. The effects of the reaction conditions, such as the reaction temperature, the quantity of the raw materials on the morphologies of the precursors were discussed, which indicates that it is an effective method to synthesize NiO materials with different hierarchical structures. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)