Journal
ADVANCED MATERIALS
Volume 33, Issue 23, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202100576
Keywords
nanobelts; nanoclusters; oxidative desulfurization; polyoxometalates; redox nanocatalyts
Categories
Funding
- National Key RAMP
- D Program of China [2017YFA0700101, 2016YFA0202801]
- NSFC [22035004]
- China Postdoctoral Science Foundation [2020TQ0164]
- Shuimu Tsinghua Scholar Program
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This study presents a facile method for synthesizing ZrO2-PMoO (PMZ) SNBs and TiO2-PMoO (PMT) SNBs with heterostructures, which demonstrate high catalytic activity and stability in oxidative desulfurization reactions. The combination of POM nanoclusters and ZrO2/TiO2 enhances the catalytic performance of the SNBs.
In addition to offering conformational flexibility, sub-nanometer nanobelts (SNBs) also outperform many larger nanobelts with large size owing to their ultrathin morphologies. However, to date, only a few monocomponent SNBs have been synthesized. This study presents a facile method for synthesizing ZrO2-PMoO (PMZ) SNBs and TiO2-PMoO (PMT) SNBs with heterostructures. The SNBs comprise ZrO2/TiO2 and polyoxometalate (POM) nanoclusters, which are formed via the aggregation and subsequent transformation of nanoclusters. Significantly, these SNBs demonstrate high catalytic activity and stability in oxidative desulfurization reactions at room temperature. The impressive catalytic performance of the SNBs is aided by the POM nanoclusters, which not only coassemble with ZrO2/TiO2 nuclei to form building blocks of PMZ SNBs/PMT SNBs but also serve as catalytic centers. The catalytic performance is further enhanced by the ZrO2/TiO2 in the SNBs. Moreover, the proposed synthesis method can be utilized to produce other SNBs. Thus, this method provides valuable insights into the strong performance properties of SNBs created by combining metal oxides and POM nanoclusters into SNBs, which have great potential as redox catalysts.
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