期刊
ACS APPLIED MATERIALS & INTERFACES
卷 6, 期 23, 页码 21702-21710出版社
AMER CHEMICAL SOC
DOI: 10.1021/am506922q
关键词
MoS2; two-dimensional material; transition metal dichalcogenides (TMDs); reduction reaction; heterogeneous catalysis
资金
- Spanish MINECO
- European Regional Development Fund [MAT2011-26399]
- (FPI) from MINECO
Chemically exfoliated MoS2 (ce-MoS2) nanosheets that incorporate a large fraction of metallic 1T phase have been recently shown to possess a high electrocatalytic activity in the hydrogen evolution reaction, but the potential of this two-dimensional material as a catalyst has otherwise remained mostly uncharted. Here, we demonstrate that ce-MoS2 nanosheets are efficient catalysts for a number of model reduction reactions (namely, those of 4-nitrophenol, 4-nitroaniline, methyl orange, and [Fe(CN)(6)](3-)) carried out in aqueous medium using NaBH4 as a reductant. The performance of the nanosheets in these reactions is found to be comparable to that of many noble metal-based catalysts. The possible reaction pathways involving ce-MoS2 as a catalyst are also discussed and investigated. Overall, the present results expand the scope of this two-dimensional material as a competitive, inexpensive, and earth-abundant catalyst.
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