Electrochemical hydrogen storage in Li-doped pentacene

被引:5
作者
Fang, Baizeng [1 ]
Zhou, Haoshen [1 ]
Honma, Itaru [1 ]
机构
[1] Natl Inst Adv Ind Sci & Technol, AIST, Inst Energy Technol, Nano Energy Mat Grp, Tsukuba, Ibaraki 3058568, Japan
关键词
D O I
10.1063/1.2189849
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Porous metal-incorporated nanostructured organic compounds represent an innovative concept in hydrogen storage. This work reports in detail the first practical realization of electrochemical hydrogen storage in such a material, Li-doped pentacene. Although lithium doping is at a very low level the conductivity of pentacene increases considerably after the doping of lithium, which makes ordered layer-stacked Li-doped pentacene very promising as electrode material for electrochemical hydrogen storage. A discharge capacity of ca. 238 mA h g(-1) has been achieved in 6M KOH for the Li-doped pentacene electrode, which is comparable to that obtained from commonly used electrode material, LaNi5 alloy for electrochemical hydrogen storage. Furthermore, a great improvement in the hydrogen storage capacity can be expected from the Li-doped pentacene by simply raising the lithium doping level.
引用
收藏
页数:4
相关论文
共 26 条
  • [1] Electrochemical hydrogen storage in MoS2 nanotubes
    Chen, J
    Kuriyama, N
    Yuan, H
    Takeshita, HT
    Sakai, T
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (47) : 11813 - 11814
  • [2] High H2 uptake by alkali-doped carbon nanotubes under ambient pressure and moderate temperatures
    Chen, P
    Wu, X
    Lin, J
    Tan, KL
    [J]. SCIENCE, 1999, 285 (5424) : 91 - 93
  • [3] COHEN RL, 1981, SCIENCE, V214, P108
  • [4] COROPCEANU V, 1979, PHYS REV LETT, V42, P1698
  • [5] Storage of hydrogen in single-walled carbon nanotubes
    Dillon, AC
    Jones, KM
    Bekkedahl, TA
    Kiang, CH
    Bethune, DS
    Heben, MJ
    [J]. NATURE, 1997, 386 (6623) : 377 - 379
  • [6] Molecular beam deposited thin films of pentacene for organic field effect transistor applications
    Dimitrakopoulos, CD
    Brown, AR
    Pomp, A
    [J]. JOURNAL OF APPLIED PHYSICS, 1996, 80 (04) : 2501 - 2508
  • [7] Electrochemical lithium doping of a pentacene molecule semiconductor
    Fang, B
    Zhou, H
    Honma, I
    [J]. APPLIED PHYSICS LETTERS, 2005, 86 (26) : 1 - 3
  • [8] Structure and electrochemical properties of the mechanically alloyed La(Ni,M)5 materials
    Jurczyk, M
    Nowak, M
    Jankowska, E
    Jakubowicz, J
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 339 (1-2) : 339 - 343
  • [9] Fabrication of p-pentacene/n-Si organic photodiodes and characterization of their photoelectric properties
    Kim, SS
    Choi, YS
    Kim, K
    Kim, JH
    Im, S
    [J]. APPLIED PHYSICS LETTERS, 2003, 82 (04) : 639 - 641
  • [10] Hydrogen storage in single-walled carbon nanotubes at room temperature
    Liu, C
    Fan, YY
    Liu, M
    Cong, HT
    Cheng, HM
    Dresselhaus, MS
    [J]. SCIENCE, 1999, 286 (5442) : 1127 - 1129