Journal
CHEMICAL COMMUNICATIONS
Volume 54, Issue 35, Pages 4402-4405Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cc00275d
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Funding
- JSPS KAKENHI [26708027, 17H05393, 17K19044]
- Australian Research Council (ARC) [FT150100479]
- Grants-in-Aid for Scientific Research [26708027, 17K19044] Funding Source: KAKEN
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Enclosing functional nanoparticles in stable inorganic supports is important for generating ultra-stable catalytic active sites with good performance and material utilization efficiency. Here we describe a simple method to synthesize ultra-thin Ag nanocrystals with dimensions that are defined by the similar to 1.4 nm 2D interlayer separating a layered silicate nanostructure. We call the particles nanoplates because they are <1.4 nm thick in one direction and their in-plane dimensions are defined by reaction time. The layered silicate is pillared with dialkylurea, which serves both as a reducing agent for the Ag precursor and immobilizes the Ag nanoplates in the interstitial nanospace. The supported Ag nanoplates showed catalytic activity for hydrolysis of NH3BH3 and generation of H-2 at room temperature. These supported Ag nanocatalysts had performance much higher than spherical Ag nanoparticles. They, moreover, had performance and stability comparable to costly supported Pt nanoparticles.
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