Synthesis of V2O5 micro-architectures via in situ generation of single-crystalline nanoparticles

• Published in: Solid state sciences Vol. 11; no. 1; pp. 102 - 107
• Main Authors: FEI, Hai-Long, MI LIU, ZHOU, Hui-Jing, SUN, Ping-Chuan, DING, Da-Tong, CHEN, Tie-Hong
• Format: Journal Article
• Language: English
• Published: Issy-les-Moulineaux Elsevier Masson 2009
• Subjects: Applied sciences; Cross-disciplinary physics: materials science; rheology; Direct energy conversion and energy accumulation; Electrical engineering. Electrical power engineering; Electrical power engineering; Electrochemical conversion: primary and secondary batteries, fuel cells; Exact sciences and technology; Materials science; Nanoscale materials and structures: fabrication and characterization; Other topics in nanoscale materials and structures; Physics; Spherical shape; Hydroxides; Thermal decomposition; V2O5; Solvothermal synthesis; Vanadium; Sulfoxides; Decomposition; Carboxylic acids; Electrode material; Ammonium vanadium sulfate hydroxide; Precursor; Lithium battery; Nanoparticles; Monocrystals; Methyl sulfoxide; Ammonium sulfate; Morphology; Micro-architecture; Vanadium oxide; Microstructure; Nanostructured materials
• ISSN: 1293-2558; 1873-3085
• DOI: 10.1016/j.solidstatesciences.2008.05.004

Rose-like crystalline particles of ammonium vanadium sulfate hydroxide (NH4V3(OH)6(SO4)2) were synthesized by a solvothermal route using dimethyl sulfoxide (DMSO) -water as the solvent. Following a thermal decomposition process, rose-like V2O5 micro-architectures were fabricated via the in situ generated single-crystalline nanoparticles. When used as the cathode material in lithium-ion batteries, the rose-like V2O5 micro-architecture exhibited high initial discharge capacity. Sphere-like precursor was also prepared via selecting suitable carboxylic acid. This facile synthesis method would be used to prepare various vanadium oxides with different morphologies as well as other compounds.