Solid-Liquid Reaction for Synthesis of Rodlike Submicron Oxalate and the Thermolysis to Nanostrings of Co3O4 Nanobeads

Autor:	Kai Hua Xu, Hong Qi Ye, Qin Kuai, Hong Tao Han, Xian Da He
Rok vydání:	2011
Předmět:	Thermogravimetric analysis Materials science Scanning electron microscope Thermal decomposition Inorganic chemistry Oxalic acid General Engineering chemistry.chemical_element Oxalate law.invention chemistry.chemical_compound chemistry Chemical engineering law Calcination Dissolution Cobalt
Zdroj:	Advanced Materials Research. :260-263
ISSN:	1662-8985
DOI:	10.4028/www.scientific.net/amr.233-235.260
Popis:	A novel solid-liquid reaction route has been developed to synthesize rodlike submicron cobalt oxalate via dissolution of cobalt powders by oxalic acid. The rod diameter and length of the oxalate particles were found to be remarkably altered by using HCl or HNO3as additive. With HCl as additive rice-shaped particles were generated while with HNO3slender needlelike particles were created with an average aspect ratio up to 42. Furthermore, strings of Co3O4nanobeads were obtained by calcination of the slender precursor particles in air. The CoC2O4·2H2O submicron rods and Co3O4nanobeads were characterized by scanning electron microscopy (SEM), thermogravimetric analysis (TG), and X-ray diffraction (XRD).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fe9514a4409424aec57aae423b1137a9 https://doi.org/10.4028/www.scientific.net/amr.233-235.260 Zobrazit plný text záznamu