title: Highly selective electrodeposition of sub-10 nm crystalline noble metallic nanorods inside vertically aligned multiwall carbon nanotubes.
abstract: In this paper crystalline noble metallic nanorods including Au and Ag with sub-10 nm diameter, are encapsulated within prealigned and open-ended multiwall carbon nanotubes (MWCNTs) through an electrodeposition method. As the external surface of CNTs has been insulated by the epoxy the CNT channel becomes the only path for the mass transport as well as the nanoreactor for the metal deposition. Highly crystallized Au and Ag2O nanorods parallel to the radial direction of CNTs are confirmed by high-resolution transmission electron microscopy, energy dispersive x-ray spectroscopy and x-ray powder diffraction spectroscopy. The Ag2O nanorods are formed by air oxidation on the Ag metals and show a single crystalline structure with (111) planes. The Au nanorods exhibit a complex crystalline structure including twin-crystal and lattice dislocation with (111) and (200) planes. These crystalline noble metallic nanostructures may have important applications for nanocatalysts for fuel cells as well as nanoelectronic and nanophotonic devices. This method is deemed to benefit the precise deposition of other crystalline nanostructures inside CNTs with a small diameter.
authors.affiliation: Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou, 215006, People's Republic of China.|College of Physics, Optoelectronics and Energy, Soochow University, Suzhou, 215006, People's Republic of China.|State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin, 300387, People's Republic of China.
authors.forename: Xuyang
authors.initials: X
authors.lastname: Wang
authors.affiliation: Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou, 215006, People's Republic of China.|College of Physics, Optoelectronics and Energy, Soochow University, Suzhou, 215006, People's Republic of China.
authors.forename: Ranran
authors.initials: R
authors.lastname: Wang
authors.affiliation: Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou, 215006, People's Republic of China.|College of Physics, Optoelectronics and Energy, Soochow University, Suzhou, 215006, People's Republic of China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Wu
authors.affiliation: Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou, 215006, People's Republic of China.
authors.forename: Xiaohua
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou, 215006, People's Republic of China.|College of Physics, Optoelectronics and Energy, Soochow University, Suzhou, 215006, People's Republic of China.|State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin, 300387, People's Republic of China.
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Yang
authors.affiliation: Testing and Analysis Center of Soochow University, Soochow University, Suzhou, 215006, People's Republic of China.
authors.forename: Jun
authors.initials: J
authors.lastname: Guo
authors.affiliation: Testing and Analysis Center of Soochow University, Soochow University, Suzhou, 215006, People's Republic of China.
authors.forename: Muzi
authors.initials: M
authors.lastname: Chen
authors.affiliation: Testing and Analysis Center of Soochow University, Soochow University, Suzhou, 215006, People's Republic of China.
authors.forename: Minghua
authors.initials: M
authors.lastname: Tang
authors.affiliation: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Rd, Zhenhai District, Ningbo, Zhejiang Province 315201, People's Republic of China.
authors.forename: Yajun
authors.initials: Y
authors.lastname: Cheng
authors.affiliation: College of Chemistry and Chemical Engineering, Inner Mongolia University, Huhhot 010021, People's Republic of China.
authors.forename: Haibin
authors.initials: H
authors.lastname: Chu