Electronic structure and chemical bonding of a graphene oxide-sulfur nanocomposite for use in superior performance lithium-sulfur cells

被引:305
作者
Zhang, Liang [1 ,2 ]
Ji, Liwen [3 ]
Glans, Per-Anders [2 ]
Zhang, Yuegang [3 ]
Zhu, Junfa [1 ]
Guo, Jinghua [2 ]
机构
[1] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China
[2] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA
[3] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA
基金
美国能源部;
关键词
X-RAY SPECTROSCOPY; RAMAN-SPECTRA; HIGH-CAPACITY; GRAPHITE OXIDE; CATHODE; ABSORPTION; BATTERIES; PHOTOEMISSION; ADSORPTION; SURFACES;
D O I
10.1039/c2cp42866k
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
We have investigated the chemical bonding and electronic structure of a graphene oxide-sulfur (GO-S) nanocomposite by X-ray Photoelectron Spectroscopy (XPS), Near-edge X-ray Absorption Fine Structure (NEXAFS), and X-ray Emission Spectroscopy (XES). The nanocomposite, synthesized by a chemical reaction-deposition approach followed by low temperature thermal treatment, is composed of a thin and uniform sulfur film anchored on a graphene oxide (GO) sheet. The GO is partially reduced during the chemical synthesis process, resulting in the appearance of a C-H bond and an increase in the ordering of GO sheets. The moderate chemical interactions between sulfur and GO can preserve the intrinsic electronic structure of GO, and on the other hand, immobilize the sulfur on the GO sheets, which should be responsible for the excellent electrochemical performance of the lithium-sulfur cells by using the GO-S nanocomposite as the cathode material.
引用
收藏
页码:13670 / 13675
页数:6
相关论文
共 59 条
[21]   Porous Hollow Carbon@Sulfur Composites for High-Power Lithium-Sulfur Batteries [J].
Jayaprakash, N. ;
Shen, J. ;
Moganty, Surya S. ;
Corona, A. ;
Archer, Lynden A. .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2011, 50 (26) :5904-5908
[22]   X-ray absorption spectroscopy of graphite oxide [J].
Jeong, H. -K. ;
Noh, H. -J. ;
Kim, J. -Y. ;
Jin, M. H. ;
Park, C. Y. ;
Lee, Y. H. .
EPL, 2008, 82 (06)
[23]   Porous carbon nanofiber-sulfur composite electrodes for lithium/sulfur cells [J].
Ji, Liwen ;
Rao, Mumin ;
Aloni, Shaul ;
Wang, Lei ;
Cairns, Elton J. ;
Zhang, Yuegang .
ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (12) :5053-5059
[24]   Graphene Oxide as a Sulfur Immobilizer in High Performance Lithium/Sulfur Cells [J].
Ji, Liwen ;
Rao, Mumin ;
Zheng, Haimei ;
Zhang, Liang ;
Li, Yuanchang ;
Duan, Wenhui ;
Guo, Jinghua ;
Cairns, Elton J. ;
Zhang, Yuegang .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (46) :18522-18525
[25]   Multilayer nanoassembly of Sn-nanopillar arrays sandwiched between graphene layers for high-capacity lithium storage [J].
Ji, Liwen ;
Tan, Zhongkui ;
Kuykendall, Tevye ;
An, Eun Ji ;
Fu, Yanbao ;
Battaglia, Vincent ;
Zhang, Yuegang .
ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (09) :3611-3616
[26]   Fe3O4 nanoparticle-integrated graphene sheets for high-performance half and full lithium ion cells [J].
Ji, Liwen ;
Tan, Zhongkui ;
Kuykendall, Tevye R. ;
Aloni, Shaul ;
Xun, Shidi ;
Lin, Eric ;
Battaglia, Vincent ;
Zhang, Yuegang .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2011, 13 (15) :7170-7177
[27]   Stabilizing lithium-sulphur cathodes using polysulphide reservoirs [J].
Ji, Xiulei ;
Evers, Scott ;
Black, Robert ;
Nazar, Linda F. .
NATURE COMMUNICATIONS, 2011, 2
[28]  
Ji XL, 2009, NAT MATER, V8, P500, DOI [10.1038/NMAT2460, 10.1038/nmat2460]
[29]   Surface analysis of CVD carbon using NEXAFS, XPS and TEM [J].
Kikuma, J ;
Yoneyama, K ;
Nomura, M ;
Konishi, T ;
Hashimoto, T ;
Mitsumoto, R ;
Ohuchi, Y ;
Seki, K .
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1998, 88 :919-925
[30]   Raman spectra of graphite oxide and functionalized graphene sheets [J].
Kudin, Konstantin N. ;
Ozbas, Bulent ;
Schniepp, Hannes C. ;
Prud'homme, Robert K. ;
Aksay, Ilhan A. ;
Car, Roberto .
NANO LETTERS, 2008, 8 (01) :36-41