@article { ISI:000299584800014,
	title = {Ultrasmall gold cluster arrays encapsulated in silica nanospheres: applications in fluorescence imaging and catalysis},
	journal = {Journal of Physical Chemistry C},
	volume = {116},
	number = {2},
	year = {2012},
	month = {JAN},
	pages = {1748-1754},
	publisher = {AMER CHEMICAL SOC},
	address = {1155 16TH ST, NW, WASHINGTON, DC 20036 USA},
	abstract = {<p>Facile synthesis of ultrasmall gold nanoclusters of size \&lt;2 nm dispersible in water using a novel quaternary ammonium ligand is reported. Further, arrays of these nanoclusters are encapsulated in monodisperse silica nanospheres of size 25-30 nm. The photophysical characteristics of the clusters are found to be intact upon encapsulation, rendering the resulting composite material ideal for fluorescence imaging applications. We have further shown the utilization of these materials in catalysis as precursors for Au nanopartides encapsulated in porous silica.</p>},
	issn = {1932-7447},
	doi = {10.1021/jp2093737},
	author = {Samanta, Anupam and Dhar, Basab B. and Devi, R. Nandini}
}
@article { ISI:000381436500019,
	title = {Understanding the electron transfer process in ZnO-naphthol azobenzoic acid composites from photophysical characterisation},
	journal = {Physical Chemistry Chemical Physics},
	volume = {18},
	number = {32},
	year = {2016},
	month = {AUG},
	pages = {22179-22187},
	publisher = {ROYAL SOC CHEMISTRY},
	address = {THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND},
	abstract = {<p>Semiconductor nanoparticles surface modified with organic molecules capable of visible light absorption and effectively transferring the electrons to the catalytic sites have the potential to be good photocatalysts. ZnO nanoparticles of size similar to 3 nm are grafted with two azonaphthols, one conjugated and the other non-conjugated. The photophysical properties of modified ZnO indicate an effective electron transfer from the conjugated azonaphthol to ZnO but not in the case of the non-conjugated molecule. It is also observed from lifetime studies that the conjugated molecule stabilises the defect sites on ZnO nanoparticles. It is possible that excited electrons from the conjugated molecule are transferred to specific defect sites in ZnO. This apparently does not occur in the non-conjugated molecule, bringing to focus the importance of the photophysical characteristics of organic modifiers in designing visible light active photocatalysts.</p>},
	issn = {1463-9076},
	doi = {10.1039/c6cp02908f},
	author = {George, Leena and Kunhikannan, Athira K. and Illathvalappil, Rajith and Ottoor, Divya and Kurungot, Sreekumar and Devi, R. Nandini}
}
@article {44411,
	title = {Ultra small nanoclusters to nanoparticles: fine tuning of particle size in water dispersible cation functionalized thiolate protected Pd system},
	journal = {Materials Today-Proceedings},
	volume = {4},
	year = {2017},
	month = {MAR},
	pages = {9440-9444},
	abstract = {Monolayer protected noble metal nanoparticles have attracted considerable attention in the past decade with potential applications in fields ranging from catalysis to biosensors [1, 2,]. We have developed a novel procedure for the synthesis of water dispersible Pd nanoparticles based on a bifunctional ligand, N,N,N-tripropyl(11-mercaptoundecyl) ammonium chloride in which thiol group binds to the metal, hydrophobic middle alkyl chain acts as capping agent and provides steric stability and on the other end the ammonia group helps in making nanoparticles hydrophilic. In this paper, we report the fine-tuning of size of water dispersible Pd nanosystems ranging from clusters to nanoparticles by adjusting the synthetic parameters and their characterization. (C) 2017 Elsevier Ltd. All rights reserved.},
	author = {Dhanraj, Prakriti and Samanta, Anupam and Devi, R. Nandini}
}
@article {44087,
	title = {Understanding alloy structure and composition in sinter-resistant AgPd@SiO2 encapsulated catalysts and their effect on catalytic properties},
	journal = {New Journal of Chemistry},
	volume = {41},
	year = {2017},
	month = {DEC},
	pages = {14652-14658},
	type = {Article},
	abstract = {The extent of alloying and the alloy composition, which are crucial in determining the activity and selectivity of bimetallic catalysts, were studied in porous silica encapsulated AgPd catalysts using XRD, HRTEM and HAADF-STEM. Water-dispersible ligand protected Pd ultra-small clusters and Ag nanoparticles of three different sizes were used as the precursors. The high reactivity of Pd ultra-small clusters enhanced the alloying of larger Ag nanoparticles to some extent. Encapsulation appeared to have minimised the sintering of the resultant nanoparticles. The earlier suggestions of the role of d-band positions with respect to adsorption energies holds good for the AgPd system and alloying enhances the activity. Alloy with the composition of Ag50Pd50 was found to be the most active with the reaction rate enhanced two fold compared to that in other compositions. Other factors like particle size and sinter-resistance also played important roles in enhancing the activity of these catalysts.},
	doi = {10.1039/c7nj03652c},
	author = {Mondal, Sourik and Rajesh, Thattarathody and Dhar, Basab B. and Snellman, Markus and Li, Junjie and Deepak, Francis Leonard and Devi, R. Nandini}
}
@article {46920,
	title = {Understanding alloy structure and composition in sinter-resistant AgPd@SiO2 encapsulated catalysts and their effect on catalytic properties (vol 41, pg 14652, 2017)},
	journal = {New Journal of Chemistry},
	volume = {44},
	year = {2020},
	month = {MAR },
	pages = {4664},
	type = {Correction},
	issn = {1144-0546},
	doi = {10.1039/d0nj90031a},
	author = {Mondal, Sourik and Rajesh, Thattarathody and Dhar, Basab B. and Snellman, Markus and Li, Junjie and Deepak, Francis Leonard and Devi, R. Nandini}
}
