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From Sulfur−Amine Solutions to Metal Sulfide Nanocrystals: Peering into the Oleylamine−Sulfur Black Box
Abstract
In this Article, we present our findings on the formation of metal sulfide nanocrystals from sulfur-alkylamine solutions. By pulsed field gradient diffusion NMR along with the standard toolbox of 1D and 2D NMR, we determined that sulfur-amine solutions used as a sulfur precursor exist as alkylammonium polysulfides at low temperatures. Upon heating to temperatures used in nanocrystal synthesis, the polysulfide ions react with excess amine to generate H(2)S, which combines with the metal precursor to form metal sulfide. Four different reaction pathways were found, each of which produced H(2)S and the byproducts identified in this Article. Thioamides were identified as an intermediate and were shown to exhibit much more rapid kinetics than sulfur-alkylamine solutions at low temperatures in the synthesis of metal sulfide nanocrystals.
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Cited by
Progress, Challenges, and Opportunities in Two-Dimensional Materials Beyond Graphene
Butler, S. Z., Hollen, S. M., Cao, L., Cui, Y., Gupta, J. A., Gutiérrez, H. R., Heinz, T. F., Hong, S. S., Huang, J., Ismach, A. F., et al. (2013) · ACS Nano · doi:10.1021/nn400280c · Cited by 4,878
Wang, Z., Dong, Y., Li, H., Zhao, Z., Bin Wu, H., Hao, C., Liu, S., Qiu, J., & Lou, X. W. (2014) · Nature Communications · doi:10.1038/ncomms6002 · Cited by 1,059
Ultrathin MoS2(1–x)Se2 x Alloy Nanoflakes For Electrocatalytic Hydrogen Evolution Reaction
Gong, Q., Cheng, L., Liu, C., Zhang, M., Feng, Q., Ye, H., Zeng, M., Xie, L., Liu, Z., & Li, Y. (2015) · ACS Catalysis · doi:10.1021/cs501970w · Cited by 535
Metadata
- Authors
- Thomson, J. W., Nagashima, K., Macdonald, P. M., & Ozin, G. A.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-03-08
- Volume
- 133
- Issue
- 13
- Pages
- 5036-5041
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W1975752859
- Cited by
- 300
- References
- 0
- FWCI
- 8.52
- Type
- journal article
- Language
- en
- Open access
- closed
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