Perforated Metal Oxide Carbon Nanotube Composite Microspheres with Enhanced Lithium-Ion Storage Properties
- Authors
- Choi, Seung Ho; Lee, Jong-Heun; Kang, Yun Chan
- Issue Date
- 10월-2015
- Publisher
- AMER CHEMICAL SOC
- Keywords
- carbon nanotube; carbon composite; anode material; lithium-ion battery
- Citation
- ACS NANO, v.9, no.10, pp.10173 - 10185
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS NANO
- Volume
- 9
- Number
- 10
- Start Page
- 10173
- End Page
- 10185
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/92394
- DOI
- 10.1021/acsnano.5b03822
- ISSN
- 1936-0851
- Abstract
- Metal oxide carbon nanotube ((NT) composite microspheres with a novel structure were fabricated using a one-step spray pyrolysis process. Metal oxide CNT composite microspheres with a uniform distribution of void nanospheres were prepared from a colloidal spray solution containing CNTs, metal salts, and polystyrene (PS) nanobeads. Perforated SnO2 (NT composite microspheres with a uniform distribution of void nanospheres showed excellent lithium storage properties as anode materials for lithium-ion batteries. Bare SnO2 microspheres and SnO2 (NT composite microspheres with perforated and filled structures had a discharge capacity of 450, 1108, and 590 mA h g(-1) for the 250th cycle at a current density of 1.5 A g(-1), and the corresponding capacity retention compared to the second cycle was 41, 98, and 55%, respectively. The synergetic combination of void nanospheres and flexible CNTs improved the electrochemical properties of SnO2. This effective and innovative strategy could be used for the preparation of perforated metal oxide-CNT composites with complex elemental compositions for many applications.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.