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Beneficial effect of Re doping on the electrochemical HER activity of MoS2 fullerenes

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dc.contributor.author Chhetri, Manjeet
dc.contributor.author Gupta, Uttam
dc.contributor.author Yadgarov, Lena
dc.contributor.author Rosentsveig, Rita
dc.contributor.author Tenne, Reshef
dc.contributor.author Rao, C. N. R.
dc.date.accessioned 2016-10-28T05:59:20Z
dc.date.available 2016-10-28T05:59:20Z
dc.date.issued 2015
dc.identifier.citation Dalton Transactions en_US
dc.identifier.citation 44 en_US
dc.identifier.citation 37 en_US
dc.identifier.citation Chhetri, M.; Gupta, U.; Yadgarov, L.; Rosentsveig, R.; Tenne, R.; Rao, C. N. R., Beneficial effect of Re doping on the electrochemical HER activity of MoS2 fullerenes. Dalton Transactions 2015, 44 (37), 16399-16404. en_US
dc.identifier.issn 1477-9226
dc.identifier.uri https://libjncir.jncasr.ac.in/xmlui/10572/1916
dc.description Restricted access en_US
dc.description.abstract Electrochemical generation of hydrogen by non-precious metal electrocatalysts at a lower overpotential is a focus area of research directed towards sustainable energy. The exorbitant costs associated with Pt-based catalysts is the major bottleneck associated with commercial-scale hydrogen generation. Strategies for the synthesis of cost-effective and stable catalysts are thus key for a prospective 'hydrogen economy'. In this report, we highlight a novel and general strategy to enhance the electrochemical activity of molybdenum disulfide (MoS2) in a fullerene structure (IF-). In particular, pristine (undoped) and rhenium-doped nanoparticles of MoS2 with fullerene-like structures (IF-MoS2) were studied, and their performance as catalysts for the hydrogen evolution reaction (HER) was compared to that of 2H-MoS2 particles (platelets). The current density of the IF-MoS2 was higher by one order of magnitude than that of few-layer (FL-) MoS2, due to the enhanced density of the edge sites. Furthermore, Re doping of as low as 100 ppm in IF-MoS2 decreased the onset potential by 60-80 mV and increased the activity by 60 times compared with that of the FL-MoS2. The combined synergistic effect of Re doping and the IF structure not only changes the intrinsic nature of the MoS2 but also increases its reactivity. This strategy highlights the potential use of the IF structure and Re doping in electrocatalytic hydrogen evolution using MoS2-based catalysts. en_US
dc.description.uri 1477-9234 en_US
dc.description.uri http://dx.doi.org/10.1039/c5dt02562a en_US
dc.language.iso English en_US
dc.publisher Royal Society of Chemistry en_US
dc.rights ?Royal Society of Chemistry, 2015 en_US
dc.subject Inorganic & Nuclear Chemistry en_US
dc.subject Hydrogen Evolution Reaction en_US
dc.subject Electrocatalytic Materials en_US
dc.subject Edge Sites en_US
dc.subject Nanosheets en_US
dc.subject Transition en_US
dc.subject Nanoparticles en_US
dc.subject Chemistry en_US
dc.subject Oxidation en_US
dc.subject Catalyst en_US
dc.subject Films en_US
dc.title Beneficial effect of Re doping on the electrochemical HER activity of MoS2 fullerenes en_US
dc.type Article en_US

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