http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Laokawee, Viratchara (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Jarulertwathana, Nutpaphat,Laokawee, Viratchara,Susingrat, Warapa,Hwang, Seong-Ju,Sarakonsri, Thapanee Springer-Verlag 2017 Journal of materials science Materials in electron Vol.28 No.24
<P>Tin/graphene-based composites were synthesized as easy-to-prepare alternative anode materials in lithium-ion batteries (LIBs). Reduced graphene oxide (rGO) was obtained from the oxidation of pristine graphite by modified Hummers' method followed by thermal treatment at 500 A degrees C for 5 h under N-2 atmosphere. Nitrogen-doped graphene (NrGO) sheets were prepared via thermal annealing of rGO and melamine (1:5 by weight) at 800 A degrees C for 1 h under N-2 environment. The chemical reduction method was used to synthesize the composites. The Sn content in Sn/rGO and Sn/NrGO was varied as 10 and 20 wt%. The rGO and NrGO supporting materials had large surface areas and were exfoliated graphite structure. The powder X-ray diffraction patterns showed that Sn/rGO and Sn/NrGO composites contained Sn and graphene-based supporter. The electron microscopic measurements granted the composite morphology, in which they consisted of small Sn particles anchored on rGO and NrGO surfaces. The 20Sn/rGO and 20Sn/NrGO composites delivered large reversible specific capacities of 793 and 755 mAh g(- 1), respectively, at a current density of 100 mA g(- 1). The prepared composites also provide high stability, indicating the promising anode performance for LIBs.</P>
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
