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Electrocatalytic porous nanocomposite of graphite nanoplatelets anchored with exfoliated activated carbon filler as counter electrode for dye sensitized solar cells

Title
Electrocatalytic porous nanocomposite of graphite nanoplatelets anchored with exfoliated activated carbon filler as counter electrode for dye sensitized solar cells
Author
정성훈
Keywords
DSSC; Carbon; Electrode; Graphite
Issue Date
2018-06
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
SOLAR ENERGY, v. 167, page. 95-101
Abstract
A unique graphite nanoplatelet (GnP) composite synthesized with a synchronized distribution of exfoliated activated carbon (AC) filler is proposed for promising Pt-free dye sensitized solar cells. The defect rich morphology of the exfoliated activated carbon filler is designed with graphite nanoplatelets to enhance its electrocatalytic activity and electron pathways, and for this purpose different percentages of AC fillers were incorporated into the GnP matrix. The proposed GnP/AC composite shows a more defect-rich morphology synchronized with high electronic conductivity which greatly enhances the electrocatalytic activity and electron transfer mobility (R-CT of 2.19 Omega). A DSSC fabricated with the proposed GnP/AC composite exhibited a high conversion efficiency rate of 8.478%, similar to that of the Pt electrocatalyst. The high catalytic activity of GnP/AC is attributed to the synergistic effect of the high electron affinity of GnP and the structural distortion caused by the AC filler material. This high-performance catalyst can be a promising material for efficient energy storage and harvesting applications.
URI
https://www.sciencedirect.com/science/article/pii/S0038092X18303487?via%3Dihubhttp://repository.hanyang.ac.kr/handle/20.500.11754/119139
ISSN
0038-092X
DOI
10.1016/j.solener.2018.04.002
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ORGANIC AND NANO ENGINEERING(유기나노공학과) > Articles
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