tailieunhanh - Báo cáo hóa học: " A Novel Route for Preparation of Hollow Carbon Nanospheres Without Introducing Template"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: A Novel Route for Preparation of Hollow Carbon Nanospheres Without Introducing Template | Nanoscale Res Lett 2009 4 1365-1370 DOI s11671-009-9406-7 NANO EXPRESS A Novel Route for Preparation of Hollow Carbon Nanospheres Without Introducing Template Minmin Li Qingsheng Wu Ming Wen Jianlin Shi Received 2 June 2009 Accepted 21 July 2009 Published online 22 August 2009 to the authors 2009 Abstract A newly developed route for the synthesis of hollow carbon nanospheres without introducing template under hydrothermal conditions was reported. Hollow carbon nanospheres with the diameter of about 100 nm were synthesized using alginate as reagent only. Many instruments were applied to characterize the morphologies and structures of carbon hollow nanospheres such as XRD TEM and Raman spectroscopy. The possible formation and growth mechanism of carbon hollow spheres were discussed on the basis of the investigation of reaction influence factors such as temperature time and content. The findings would be useful for the synthesis of more materials with hollow structure and for the potential use in many aspects. The loading of SnO2 on the surface of carbon hollow spheres was processed and its PL property was also characterized. Keywords Synthesis Nanostructure Carbon hollow nanospheres Electronic supplementary material The online version of this article doi s11671-009-9406-7 contains supplementary material which is available to authorized users. M. Li Q. Wu H M. Wen Department of Chemistry Tongji University 1239 Siping Road 200092 Shanghai People s Republic of China e-mail qswu@ Q. Wu Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Fudan University 200433 Shanghai People s Republic of China J. Shi Shanghai Institute of Ceramics Chinese Academy of Sciences 1295 Dingxi Road 200050 Shanghai People s Republic of China Introduction Inorganic hollow spheres with tailored structural optical and surface properties represent an important class of materials that may find applications in a wide range of areas such as delivery .