Skip to main content
×
Home
    • Aa
    • Aa

Monitoring of CoS2 reactions using high-temperature XRD coupled with gas chromatography (GC)

  • Mark A. Rodriguez (a1), Eric N. Coker (a1), James J. M. Griego (a1), Curtis D. Mowry (a1), Adam S. Pimentel (a1) and Travis M. Anderson (a1)...
Abstract

High-temperature X-ray diffraction with concurrent gas chromatography (GC) was used to study cobalt disulfide cathode pellets disassembled from thermal batteries. When CoS2 cathode materials were analyzed in an air environment, oxidation of the K(Br, Cl) salt phase in the cathode led to the formation of K2SO4 that subsequently reacted with the pyrite-type CoS2 phase leading to cathode decomposition between ~260 and 450 °C. Independent thermal analysis experiments, i.e. simultaneous thermogravimetric analysis/differential scanning calorimetry/mass spectrometry (MS), augmented the diffraction results and support the overall picture of CoS2 decomposition. Both gas analysis measurements (i.e. GC and MS) from the independent experiments confirmed the formation of SO2 off-gas species during breakdown of the CoS2. In contrast, characterization of the same cathode material under inert conditions showed the presence of CoS2 throughout the entire temperature range of analysis.

Copyright
Corresponding author
a) Author to whom correspondence should be addressed. Electronic mail: marodri@sandia.gov
References
Hide All
BaoS-J., LiC. M., GuoC-X., and QiaoY. (2008). “Biomolecule-assisted synthesis of cobalt sulfide nanowires for application in supercapacitors,” J. Power Sources 180, 676681.
ButlerP., WagnerC., GuidottiR., and FrancisI. (2004). “Long-life, multi-tap thermal battery development,” J. Power Sources 136, 240245.
ChoiD., XiaoJ., Joon ChoiY., HardyJ. S., VijayakumarM., BhuvaneswariM. S., LiuJ., XuW., WangW., YangZ., GraffG. L., and ZhangJ-G. (2011). “Thermal stability and phase transformation of electrochemically charged/discharged LiMnPO4 cathode for Li-ion batteries,” Energy Environ. Sci. 4, 45604566.
CokerE. N., AmbrosiniA., RodriguezM. A., and MillerJ. E. (2011). “Ferrite-YSZ composites for solar thermochemical production of synthetic fuels: in operando characterization of CO2 reduction,” J. Mater. Chem. 21, 1076710776.
FawcettT. (1987). “Greater than the sum of its parts – a new instrument,” Chemtech 17, 564569.
GoripartiS., MieleE., De AngelisF., Di FabrizioE., Proietti ZaccariaR., and CapigliaC. (2014). “Review on recent progress of nanostructured anode materials for Li-ion batteries,” J. Power Sources 257, 421443.
ICDD (2015). PDF-4+ 2015 (Database), edited by Dr. Soorya Kabekkodu, International Centre for Diffraction Data, Newtown Square, PA, USA.
MrowecS., DanielewskiM., and WojtowiczA. (1998). “Sulphidation of cobalt at high temperatures,” J. Mater. Sci. 22, 26172628.
TrionfettiC., BabichI. V., SeshanK., and LeffertsL. (2006). “Formation of high surface area Li/MgO-Efficient catalyst for the oxidative dehydrogenation/cracking of propane,” Appl. Catal. A: Gen. 310, 105113.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Powder Diffraction
  • ISSN: 0885-7156
  • EISSN: 1945-7413
  • URL: /core/journals/powder-diffraction
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords:

Metrics

Full text views

Total number of HTML views: 18
Total number of PDF views: 109 *
Loading metrics...

Abstract views

Total abstract views: 190 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 19th October 2017. This data will be updated every 24 hours.