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Enhanced Performance of Carbon–Selenide Composite with La(0.9)Ce(0.1)NiO(3) Perovskite Oxide for Outstanding Counter Electrodes in Platinum-Free Dye-Sensitized Solar Cells

For large-scale applications, dye-sensitized solar cells (DSSCs) require the replacement of the scarce platinum (Pt)-based counter electrode (CE) with efficient and cheap alternatives. In this respect, low-cost perovskite oxides (ABO(3)) have been introduced as promising additives to composite-based...

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Autores principales: Tapa, Arnauld Robert, Xiang, Wanchun, Wu, Senwei, Li, Bin, Liu, Qiufen, Zhang, Mingfeng, Ghadamyari, Marzieh, Verpoort, Francis, Wang, Jichao, Trokourey, Albert, Zhao, Xiujian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
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Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8953699/
https://www.ncbi.nlm.nih.gov/pubmed/35335773
http://dx.doi.org/10.3390/nano12060961
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author Tapa, Arnauld Robert
Xiang, Wanchun
Wu, Senwei
Li, Bin
Liu, Qiufen
Zhang, Mingfeng
Ghadamyari, Marzieh
Verpoort, Francis
Wang, Jichao
Trokourey, Albert
Zhao, Xiujian
author_facet Tapa, Arnauld Robert
Xiang, Wanchun
Wu, Senwei
Li, Bin
Liu, Qiufen
Zhang, Mingfeng
Ghadamyari, Marzieh
Verpoort, Francis
Wang, Jichao
Trokourey, Albert
Zhao, Xiujian
author_sort Tapa, Arnauld Robert
collection PubMed
description For large-scale applications, dye-sensitized solar cells (DSSCs) require the replacement of the scarce platinum (Pt)-based counter electrode (CE) with efficient and cheap alternatives. In this respect, low-cost perovskite oxides (ABO(3)) have been introduced as promising additives to composite-based CEs in Pt-free DSSCs. Herein, we synthesized composites from La(0.9)Ce(0.1)NiO(3) (L) perovskite oxide and functionalized-multiwall-carbon-nanotubes wrapped in selenides derived from metal-organic-frameworks (f-MWCNT-ZnSe-CoSe(2), “F”). L and F were then mixed with carbon black (CB) in different mass ratios to prepare L@CB, F@CB, and L@F@CB composites. The electrochemical analysis revealed that the L@F@CB composite with a mass ratio of 1.5:3:1.5 exhibits better electrocatalytic activity than Pt. In addition, the related DSSC reached a better PCE of 7.49% compared to its Pt-based counterpart (7.09%). This improved performance is the result of the increase in the oxygen vacancy by L due to the replacement of La with Ce in its structure, leading to more active sites in the L@F@CB composites. Moreover, the F@CB composite favors the contribution to the high electrical conductivity of the hybrid carbon nanotube–carbon black, which also offers good stability to the L@F@CB CE by not showing any obvious change in morphology and peak-to-peak separation even after 100 cyclic voltammetry cycles. Consequently, the corresponding L@F@CB-based device achieved enhanced stability. Our work demonstrates that L@F@CB composites with a low cost are excellent alternatives to Pt CE in DSSCs.
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spelling pubmed-89536992022-03-26 Enhanced Performance of Carbon–Selenide Composite with La(0.9)Ce(0.1)NiO(3) Perovskite Oxide for Outstanding Counter Electrodes in Platinum-Free Dye-Sensitized Solar Cells Tapa, Arnauld Robert Xiang, Wanchun Wu, Senwei Li, Bin Liu, Qiufen Zhang, Mingfeng Ghadamyari, Marzieh Verpoort, Francis Wang, Jichao Trokourey, Albert Zhao, Xiujian Nanomaterials (Basel) Article For large-scale applications, dye-sensitized solar cells (DSSCs) require the replacement of the scarce platinum (Pt)-based counter electrode (CE) with efficient and cheap alternatives. In this respect, low-cost perovskite oxides (ABO(3)) have been introduced as promising additives to composite-based CEs in Pt-free DSSCs. Herein, we synthesized composites from La(0.9)Ce(0.1)NiO(3) (L) perovskite oxide and functionalized-multiwall-carbon-nanotubes wrapped in selenides derived from metal-organic-frameworks (f-MWCNT-ZnSe-CoSe(2), “F”). L and F were then mixed with carbon black (CB) in different mass ratios to prepare L@CB, F@CB, and L@F@CB composites. The electrochemical analysis revealed that the L@F@CB composite with a mass ratio of 1.5:3:1.5 exhibits better electrocatalytic activity than Pt. In addition, the related DSSC reached a better PCE of 7.49% compared to its Pt-based counterpart (7.09%). This improved performance is the result of the increase in the oxygen vacancy by L due to the replacement of La with Ce in its structure, leading to more active sites in the L@F@CB composites. Moreover, the F@CB composite favors the contribution to the high electrical conductivity of the hybrid carbon nanotube–carbon black, which also offers good stability to the L@F@CB CE by not showing any obvious change in morphology and peak-to-peak separation even after 100 cyclic voltammetry cycles. Consequently, the corresponding L@F@CB-based device achieved enhanced stability. Our work demonstrates that L@F@CB composites with a low cost are excellent alternatives to Pt CE in DSSCs. MDPI 2022-03-14 /pmc/articles/PMC8953699/ /pubmed/35335773 http://dx.doi.org/10.3390/nano12060961 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tapa, Arnauld Robert
Xiang, Wanchun
Wu, Senwei
Li, Bin
Liu, Qiufen
Zhang, Mingfeng
Ghadamyari, Marzieh
Verpoort, Francis
Wang, Jichao
Trokourey, Albert
Zhao, Xiujian
Enhanced Performance of Carbon–Selenide Composite with La(0.9)Ce(0.1)NiO(3) Perovskite Oxide for Outstanding Counter Electrodes in Platinum-Free Dye-Sensitized Solar Cells
title Enhanced Performance of Carbon–Selenide Composite with La(0.9)Ce(0.1)NiO(3) Perovskite Oxide for Outstanding Counter Electrodes in Platinum-Free Dye-Sensitized Solar Cells
title_full Enhanced Performance of Carbon–Selenide Composite with La(0.9)Ce(0.1)NiO(3) Perovskite Oxide for Outstanding Counter Electrodes in Platinum-Free Dye-Sensitized Solar Cells
title_fullStr Enhanced Performance of Carbon–Selenide Composite with La(0.9)Ce(0.1)NiO(3) Perovskite Oxide for Outstanding Counter Electrodes in Platinum-Free Dye-Sensitized Solar Cells
title_full_unstemmed Enhanced Performance of Carbon–Selenide Composite with La(0.9)Ce(0.1)NiO(3) Perovskite Oxide for Outstanding Counter Electrodes in Platinum-Free Dye-Sensitized Solar Cells
title_short Enhanced Performance of Carbon–Selenide Composite with La(0.9)Ce(0.1)NiO(3) Perovskite Oxide for Outstanding Counter Electrodes in Platinum-Free Dye-Sensitized Solar Cells
title_sort enhanced performance of carbon–selenide composite with la(0.9)ce(0.1)nio(3) perovskite oxide for outstanding counter electrodes in platinum-free dye-sensitized solar cells
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8953699/
https://www.ncbi.nlm.nih.gov/pubmed/35335773
http://dx.doi.org/10.3390/nano12060961
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