tailieunhanh - Báo cáo hóa học: " Synthesis of multi-walled carbon nanotube/ polyhedral oligomeric silsesquioxane nanohybrid by utilizing click chemistry"

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: Synthesis of multi-walled carbon nanotube/ polyhedral oligomeric silsesquioxane nanohybrid by utilizing click chemistry | Yadav et al. Nanoscale Research Letters 2011 6 122 http content 6 1 122 o Nanoscale Research Letters a SpringerOpen Journal NANO EXPRESS Open Access Synthesis of multi-walled carbon nanotube polyhedral oligomeric silsesquioxane nanohybrid by utilizing click chemistry Santosh Kumar Yadav1 Sibdas Singha Mahapatra1 2 Hye Jin Yoo1 Jae Whan Cho1 Abstract A new hybrid material consisting of a polyhedral oligomeric silsesquioxane POSS and carbon nanotube CNT was synthesized by a simple and versatile approach entailing click coupling between azide moiety-functionalized POSS and alkyne-functionalized multi-walled CNTs. This approach provides a simple and convenient route to efficiently functionalize a wide variety of nanoscale nanostructure materials on the surface of CNTs. Introduction A hybrid nanomaterial can be broadly depicted as a multi-component system where two or more nanomaterials are unified to form a new nanomaterial fabricated with the aim of realizing attractive multi-functional properties. Hybrid nanomaterials of carbon nanotubes CNTs with metals metal oxides and biological compounds have been developed for various applications such as sensors actuators solar cells biosensors and light emitting devices 1 2 . CNTs offer diverse optical electrical and mechanical properties 3 4 making them attractive building blocks for realizing novel functionality via hybridization 5 6 . Polyhedral oligomeric silsesquioxane POSS a type of inorganic nanostructured molecule 7-9 contains Si-O cores that have a special cage structure and good solubility. Surrounded by various organic groups POSS is a strong candidate for further functionalization to develop nanohybrid materials 10-12 . The functionalization of CNTs has been one of the most intensively explored methods to produce CNT-based nanostructure materials. Various functionalization strategies for CNTs can be performed with non-covalent bonding such as van der Waals and n-n interaction as well as by