1D-2D carbon heterostructure with low Pt loading as a superior cathode electrode for dye-sensitized solar cell
Journal of Nanoparticle Research, ISSN: 1572-896X, Vol: 19, Issue: 2
2017
- 5Citations
- 11Captures
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Article Description
Cost-effective counter electrode (CE) with high electrocatalytic performance is very much essential for the wide application of dye-sensitized solar cells (DSSC). The 1D-2D carbon heterostructure (Pt/GR@CNT) with low platinum (Pt) loading has been synthesized by a facile in situ microwave-assisted polyol-reduction method. The excellent electrocatalytic activity as well as photovoltaic performance was achieved due to the combination of 2D graphene nanoribbons (GR) and 1D multi-walled carbon nanotubes (CNT) with high catalytically active Pt nanoparticles. Microwave-assisted longitudinal unzipping of few outer layers of CNTs along with co-reduction of Pt nanoparticles is an effective method to create electrochemically active defective edge sites, which have a crucial role in enhancing electrochemical performance. Synergistic effect of ultra-fine Pt nanoparticles, partially unzipped graphene nanoribbons and inner core tubes of CNTs modulates the power conversion efficiency of solar cell to 5.57% ± 0.03 as compared with 4.73% ± 0.13 of CNTs. Pt/GR@CNT CE even with low Pt loading of 14 μg cm showcases equivalent performance with that of pure Pt counter electrode. [Figure not available: see fulltext.]
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85009799085&origin=inward; http://dx.doi.org/10.1007/s11051-017-3740-y; http://link.springer.com/10.1007/s11051-017-3740-y; http://link.springer.com/content/pdf/10.1007/s11051-017-3740-y.pdf; http://link.springer.com/article/10.1007/s11051-017-3740-y/fulltext.html; https://dx.doi.org/10.1007/s11051-017-3740-y; https://link.springer.com/article/10.1007/s11051-017-3740-y
Springer Nature
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