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Throwing light on platinized carbon nanostructured composites for hydrogen generation

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Title Throwing light on platinized carbon
nanostructured composites for hydrogen
generation
 
Creator Mangrulkar, Priti A
Kotkondawar, Abhay V
Mukherjee, Sumanta
Joshi, Meenal V
Labhsetwar, Nitin
Sarma, D.D.
Rayalu, Sadhana
 
Subject Materials Science
 
Description In the present study, we have synthesised carbon nanoparticles (CNPs) through a relatively simple
process using a hydrocarbon precursor. These synthesised CNPs in the form of elongated spherules
and/or agglomerates of 30–55 nm were further used as a support to anchor platinum nanoparticles.
The broad light absorption (300–700 nm) and a facile charge transfer property of CNPs in addition to
the plasmonic property of Pt make these platinized carbon nanostructures (CNPs/Pt) a promising
candidate in photocatalytic water splitting. The photocatalytic activity was evaluated using ethanol as
the sacrificial donor. The photocatalyst has shown remarkable activity for hydrogen production under
UV-visible light while retaining its stability for nearly 70 h. The broadband absorption of CNPs, along
with the Surface Plasmon Resonance (SPR) effect of PtNPs singly and in composites has pronounced
influence on the photocatalytic activity, which has not been explored earlier. The steady rate of
hydrogen was observed to be 20 mmol h�1 with an exceptional cumulative hydrogen yield of 32.16
mmol h�1 g�1 observed for CNPs/Pt, which is significantly higher than that reported for carbon-based
systems.
 
Publisher Royal Society of Chemistry
 
Date 2014
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://neeri.csircentral.net/1078/1/mangrulkar2014.pdf
Mangrulkar, Priti A and Kotkondawar, Abhay V and Mukherjee, Sumanta and Joshi, Meenal V and Labhsetwar, Nitin and Sarma, D.D. and Rayalu, Sadhana (2014) Throwing light on platinized carbon nanostructured composites for hydrogen generation. Energy & Environmental Science, 7 (12). pp. 4087-4094. ISSN 1754-5706
 
Relation http://neeri.csircentral.net/1078/