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Fabrication of metal nanoparticles in metal organic framework NH2-MIL-125 by UV photo-assisted methods for optimized catalytic properties

Paper ID Volume ID Publish Year Pages File Format Full-Text
54681 47020 2014 5 PDF Available
Title
Fabrication of metal nanoparticles in metal organic framework NH2-MIL-125 by UV photo-assisted methods for optimized catalytic properties
Abstract

•Pd NPs were synthesized in the Ti based MOF using photo-assisted deposition.•The influence on the size, location and state of Pd NPs were investigated.•Catalytic activity was examined in the H2 production from ammonia borane.•Best sample is obtained by combining UV irradiation with reduction by H2 gas.

The influence of preparation method on the size, location and state of Pd nanoparticles were investigated within the pores of amine-functionalized metal organic frameworks NH2-MIL-125 using three different photo-assisted deposition methods and the conventional impregnation method. The oxidation state, size and location were determined by XAFS and TEM. The catalytic activity was studied for hydrolysis of ammonia borane (AB) at ambient temperature. The choice of solvent and hole scavenger/reducing medium directly influence the location and the reduction of the particles. Our study shows that the best sample is prepared by combining UV irradiation with a direct reduction by H2 gas, and finding the right amount solvent and solvent/hole scavenger ratio is necessary for successful NPs synthesis using only UV light irradiation.

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Keywords
Metal organic frameworks; Nanoparticles synthesis; Hydrogen storage; Ammonia borane
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Fabrication of metal nanoparticles in metal organic framework NH2-MIL-125 by UV photo-assisted methods for optimized catalytic properties
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 235, 15 October 2014, Pages 98–102
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
Online Support
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