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Abstract
The citric acid/nickel acetate composite hollow fibers were prepared by using sol-gel processing and co-electrospinning technique. The polycrystalline NiO hollow nanostructured fibers were prepared after calcination. The obtained hollow nanostructured fibers made up of 17∼25 nm nanocrystals were about 150 nm to several micrometers in outer diameter. The hollow NiO nanostructured fibers have been characterized by TG, DSC, SEM, FTIR, and XRD techniques. The results showed that the morphology of NiO hollow fibers was obviously influenced by the calcination temperature.
The authors gratefully acknowledge the financial support of the Doctoral Program of Higher Education of China (200800551003), 863 High Technology Program (2006AA06Z424), Youth Foundation of Tianjin University (TJU-YFF-08B56), and Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education.
