Supercritical CO_(2)-driven,periodic patterning on one-dimensionals carbon nanomaterials  

作　　者：ZHENG XiaoLi XU Qun LI ZongPeng 

机构地区：[1]College of Material Science and Engineering,Zhengzhou University,Zhengzhou 450052,China

出　　处：《Science China Chemistry》2010年第7期1525-1533,共9页中国科学(化学英文版)

基　　金：the National Natural Science Foundation of China (20974102);the Program for New Century Excellent Talents in Universities (NCET)

摘　　要：One-dimensional carbon nano-materials,in particular carbon nanotubes (CNTs) and carbon nanofibers (CNFs),are of scientific and technological interest due to their satisfactory properties and ability to serve as templates for directed assembly.In this work,linear high density polyethylene (PE) was periodically decorated on CNTs and CNFs using a supercritical carbon dioxide (scCO_(2))antisolvent-induced polymer epitaxy (SAIPE) method,leading to nano-hybrid shish-kebab (NHSK) structures.The formation mechanism of different morphologies of PE lamellae on CNTs and CNFs has been discussed.Palladium nanoparticles were synthesized and immobilized on the PE/CNF NHSK structure with the assistance of scCO_(2).The obtained hierarchical nano-hybrid architecture may find applications in microfabrication and other related fields.One-dimensional carbon nano-materials,in particular carbon nanotubes (CNTs) and carbon nanofibers (CNFs),are of scientific and technological interest due to their satisfactory properties and ability to serve as templates for directed assembly.In this work,linear high density polyethylene (PE) was periodically decorated on CNTs and CNFs using a supercritical carbon dioxide (scCO_(2))antisolvent-induced polymer epitaxy (SAIPE) method,leading to nano-hybrid shish-kebab (NHSK) structures.The formation mechanism of different morphologies of PE lamellae on CNTs and CNFs has been discussed.Palladium nanoparticles were synthesized and immobilized on the PE/CNF NHSK structure with the assistance of scCO_(2).The obtained hierarchical nano-hybrid architecture may find applications in microfabrication and other related fields.

关 键 词：CARBON NANOTUBE CARBON NANOFIBER polyethylene SUPERCRITICAL CARBON dioxide SHISH-KEBAB palladium nanoparticle 

分 类 号：TB383.1[一般工业技术—材料科学与工程]