메인메뉴바로가기

한양대학교 산학협력단

홈으로 바로가기 > 연구정보 > 연구성과 > Highly Cited Articles

연구성과 > Highly Cited Articles

  • 한양대학교 재직중인 전임교원이 출판한(최근 5년) 논문 중 고피인용 현황(Web Of Science에서 제공되는 피인용 값)
  • 매월 1회 업데이트
페이스북 로그인트위터 로그인카카오톡 로그인메일 전송
view

SCI Article

Anatase Titania Nanorods as an Intercalation Anode Material for Rechargeable Sodium Batteries
Author 윤종승 (Dept Mat Sci & Engn); 선양국 (Dept Energy Engn) corresponding author;
Corresponding Author Info Sun, YK (reprint author), Hanyang Univ, Dept Energy Engn, Seoul 133791, South Korea.
E-mail 씠硫붿씪 븘씠肄
Document Type Article
Source NANO LETTERS Volume:14 Issue:2 Pages:416-422 Published:2014
Times Cited 50
External Information PDF 븘씠肄http://dx.doi.org/10.1021/nl402747x
Abstract For the first time, we report the electrochemical activity of anatase TiO2 nanorods in a Na cell. The anatase TiO2 nanorods were synthesized by a hydrothermal method, and their surfaces were coated by carbon to improve the electric conductivity through carbonization of pitch at 700 degrees C for 2 h in Ar flow. The resulting structure does not change before and after the carbon coating, as confirmed by X-ray diffraction (XRD). Transmission electron microscopic images confirm the presence of a carbon coating on the anatase TiO2 nanorods. In cell tests, anodes of bare and carbon-coated anatase TiO2 nanorods exhibit stable cycling performance and attain a capacity of about 172 and 193 mAh g(-1) on the first charge; respectively, in the voltage range of 3-0 V. With the help of the conductive carbon layers, the carbon-coated anatase TiO2 delivers more capacity at high rates, 104 mAh g(-1) at the 10 C-rate (3.3 A g(-1)), 82 mAh g(-1) at the 30 C-rate (10 A g(-1)), and 53 mAh g(-1) at the 100 C-rate (33 A g(-1)). By contrast, the anode of bare anatase TiO2 nanorods delivers only about 38 mAh g(-1) at the 10 C-rate (3.3 A g(-1)). The excellent cyclability and high-rate capability are the result of a Na+ insertion and extraction reaction into the host structure coupled with Ti4+/3+ redox reaction, as revealed by X-ray absorption spectroscopy.
Web of Science Categories Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter
Funding Basic Science Research Program through National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0024683]; Human Resources Development program of Korea Institute of Energy Technology Evaluation and Planning (KETEP) [
Language English
페이스북 로그인트위터 로그인카카오톡 로그인메일 전송 리스트