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Title: X-ray Absorption Spectroscopic Characterization of the Synthesis Process: Revealing the Interactions in Cetyltrimethylammonium Bromide-Modified Sulfur–Graphene Oxide Nanocomposites

Abstract

In this paper, we have investigated the chemical bonding interaction of S in a CTAB (cetyltrimethylammonium bromide, CH3(CH2)15N+(CH3)3Br)-modified sulfur–graphene oxide (S–GO) nanocomposite used as the cathode material for Li/S cells by S K-edge X-ray absorption spectroscopy (XAS). The results show that the introduction of CTAB to the S–GO nanocomposite and changes in the synthesis recipe including alteration of the S precursor ratios and the sequence of mixing ingredients lead to the formation of different S species. CTAB modifies the cathode materials through bonding with Na2Sx in the precursor solution, which is subsequently converted to C–S bonds during the heat treatment at 155 °C. Moreover, GO bonds with CTAB and acts as the nucleation center for S precipitation. Finally, all these interactions among S, CTAB, and GO help to immobilize the sulfur in the cathode and may be responsible for the enhanced cell cycle life of CTAB–S–GO nanocomposite-based Li/S cells.

Authors:
 [1];  [2];  [3];  [4];  [5];  [5];  [5];  [6];  [2];  [7];  [8]
  1. Univ. of Science and Technology of China, Hefei (China); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  3. Washington State Univ., Pullman, WA (United States)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Harbin Inst. of Technology (China)
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  6. Harbin Inst. of Technology (China)
  7. Univ. of Science and Technology of China, Hefei (China)
  8. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Santa Cruz, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Basic Research Program of China; National Natural Science Foundation of China (NSFC); Hefei Science Center of CAS (China)
OSTI Identifier:
1379346
Grant/Contract Number:  
AC02-05CH11231; 2013CB834605; U1232102; 21173200; 21473178; 2015SRG-HSC031; 2015HSC-UP022
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Physical Chemistry. C
Additional Journal Information:
Journal Volume: 120; Journal Issue: 19; Journal ID: ISSN 1932-7447
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE

Citation Formats

Ye, Yifan, Kawase, Ayako, Song, Min-Kyu, Feng, Bingmei, Liu, Yi-Sheng, Marcus, Matthew A., Feng, Jun, Fang, Haitao, Cairns, Elton J., Zhu, Junfa, and Guo, Jinghua. X-ray Absorption Spectroscopic Characterization of the Synthesis Process: Revealing the Interactions in Cetyltrimethylammonium Bromide-Modified Sulfur–Graphene Oxide Nanocomposites. United States: N. p., 2016. Web. doi:10.1021/acs.jpcc.6b00751.
Ye, Yifan, Kawase, Ayako, Song, Min-Kyu, Feng, Bingmei, Liu, Yi-Sheng, Marcus, Matthew A., Feng, Jun, Fang, Haitao, Cairns, Elton J., Zhu, Junfa, & Guo, Jinghua. X-ray Absorption Spectroscopic Characterization of the Synthesis Process: Revealing the Interactions in Cetyltrimethylammonium Bromide-Modified Sulfur–Graphene Oxide Nanocomposites. United States. https://doi.org/10.1021/acs.jpcc.6b00751
Ye, Yifan, Kawase, Ayako, Song, Min-Kyu, Feng, Bingmei, Liu, Yi-Sheng, Marcus, Matthew A., Feng, Jun, Fang, Haitao, Cairns, Elton J., Zhu, Junfa, and Guo, Jinghua. 2016. "X-ray Absorption Spectroscopic Characterization of the Synthesis Process: Revealing the Interactions in Cetyltrimethylammonium Bromide-Modified Sulfur–Graphene Oxide Nanocomposites". United States. https://doi.org/10.1021/acs.jpcc.6b00751. https://www.osti.gov/servlets/purl/1379346.
@article{osti_1379346,
title = {X-ray Absorption Spectroscopic Characterization of the Synthesis Process: Revealing the Interactions in Cetyltrimethylammonium Bromide-Modified Sulfur–Graphene Oxide Nanocomposites},
author = {Ye, Yifan and Kawase, Ayako and Song, Min-Kyu and Feng, Bingmei and Liu, Yi-Sheng and Marcus, Matthew A. and Feng, Jun and Fang, Haitao and Cairns, Elton J. and Zhu, Junfa and Guo, Jinghua},
abstractNote = {In this paper, we have investigated the chemical bonding interaction of S in a CTAB (cetyltrimethylammonium bromide, CH3(CH2)15N+(CH3)3Br–)-modified sulfur–graphene oxide (S–GO) nanocomposite used as the cathode material for Li/S cells by S K-edge X-ray absorption spectroscopy (XAS). The results show that the introduction of CTAB to the S–GO nanocomposite and changes in the synthesis recipe including alteration of the S precursor ratios and the sequence of mixing ingredients lead to the formation of different S species. CTAB modifies the cathode materials through bonding with Na2Sx in the precursor solution, which is subsequently converted to C–S bonds during the heat treatment at 155 °C. Moreover, GO bonds with CTAB and acts as the nucleation center for S precipitation. Finally, all these interactions among S, CTAB, and GO help to immobilize the sulfur in the cathode and may be responsible for the enhanced cell cycle life of CTAB–S–GO nanocomposite-based Li/S cells.},
doi = {10.1021/acs.jpcc.6b00751},
url = {https://www.osti.gov/biblio/1379346}, journal = {Journal of Physical Chemistry. C},
issn = {1932-7447},
number = 19,
volume = 120,
place = {United States},
year = {Fri Apr 22 00:00:00 EDT 2016},
month = {Fri Apr 22 00:00:00 EDT 2016}
}

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Works referencing / citing this record:

Method for Creation of Fine Sulfur Particles with Graphene Oxide for Lithium/Sulfur Cells
journal, January 2018