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Avant-Garde Polymer and Nano-Graphite-Derived Nanocomposites—Versatility and Implications. Mol Vis 2023. [DOI: 10.3390/c9010013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Graphite (stacked graphene layers) has been modified in several ways to enhance its potential properties/utilities. One approach is to convert graphite into a unique ‘nano-graphite’ form. Nano-graphite consists of few-layered graphene, multi-layered graphene, graphite nanoplatelets, and other graphene aggregates. Graphite can be converted to nano-graphite using physical and chemical methods. Nano-graphite, similar to graphite, has been reinforced in conducting polymers/thermoplastics/rubbery matrices to develop high-performance nanocomposites. Nano-graphite and polymer/nano-graphite nanomaterials have characteristics that are advantageous over those of pristine graphitic materials. This review basically highlights the essential features, design versatilities, and applications of polymer/nano-graphite nanocomposites in solar cells, electromagnetic shielding, and electronic devices.
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Tapa AR, Xiang W, Wu S, Li B, Liu Q, Zhang M, Ghadamyari M, Verpoort F, Wang J, Trokourey A, Zhao X. Enhanced Performance of Carbon-Selenide Composite with La 0.9Ce 0.1NiO 3 Perovskite Oxide for Outstanding Counter Electrodes in Platinum-Free Dye-Sensitized Solar Cells. NANOMATERIALS 2022; 12:nano12060961. [PMID: 35335773 PMCID: PMC8953699 DOI: 10.3390/nano12060961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/06/2022] [Accepted: 03/11/2022] [Indexed: 12/04/2022]
Abstract
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 (ABO3) have been introduced as promising additives to composite-based CEs in Pt-free DSSCs. Herein, we synthesized composites from La0.9Ce0.1NiO3 (L) perovskite oxide and functionalized-multiwall-carbon-nanotubes wrapped in selenides derived from metal-organic-frameworks (f-MWCNT-ZnSe-CoSe2, “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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Affiliation(s)
- Arnauld Robert Tapa
- State Key Laboratory of Silicate Materials for Architecture, Wuhan University of Technology, Luoshi Road, Wuhan 430070, China; (A.R.T.); (S.W.); (B.L.); (Q.L.); (M.Z.)
- Laboratory of Constitution and Reaction of Matter, Training and Research Unit for Structural Sciences of Matter and Technology, Félix Houphouët-Boigny University of Cocody-Abidjan, Abidjan 22 BP 582, Côte d’Ivoire;
| | - Wanchun Xiang
- State Key Laboratory of Silicate Materials for Architecture, Wuhan University of Technology, Luoshi Road, Wuhan 430070, China; (A.R.T.); (S.W.); (B.L.); (Q.L.); (M.Z.)
- Key Laboratory for Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Materials Science & Engineering, Shaanxi Normal University, Xi’an 710119, China
- Correspondence: (W.X.); (X.Z.)
| | - Senwei Wu
- State Key Laboratory of Silicate Materials for Architecture, Wuhan University of Technology, Luoshi Road, Wuhan 430070, China; (A.R.T.); (S.W.); (B.L.); (Q.L.); (M.Z.)
| | - Bin Li
- State Key Laboratory of Silicate Materials for Architecture, Wuhan University of Technology, Luoshi Road, Wuhan 430070, China; (A.R.T.); (S.W.); (B.L.); (Q.L.); (M.Z.)
| | - Qiufen Liu
- State Key Laboratory of Silicate Materials for Architecture, Wuhan University of Technology, Luoshi Road, Wuhan 430070, China; (A.R.T.); (S.W.); (B.L.); (Q.L.); (M.Z.)
| | - Mingfeng Zhang
- State Key Laboratory of Silicate Materials for Architecture, Wuhan University of Technology, Luoshi Road, Wuhan 430070, China; (A.R.T.); (S.W.); (B.L.); (Q.L.); (M.Z.)
| | - Marzieh Ghadamyari
- Laboratory of Organometallics, Catalysis and Ordered Materials, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China; (M.G.); (F.V.); (J.W.)
| | - Francis Verpoort
- Laboratory of Organometallics, Catalysis and Ordered Materials, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China; (M.G.); (F.V.); (J.W.)
- National Research Tomsk Polytechnic University, Lenin Avenue 30, 634050 Tomsk, Russia
| | - Jichao Wang
- Laboratory of Organometallics, Catalysis and Ordered Materials, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China; (M.G.); (F.V.); (J.W.)
| | - Albert Trokourey
- Laboratory of Constitution and Reaction of Matter, Training and Research Unit for Structural Sciences of Matter and Technology, Félix Houphouët-Boigny University of Cocody-Abidjan, Abidjan 22 BP 582, Côte d’Ivoire;
| | - Xiujian Zhao
- State Key Laboratory of Silicate Materials for Architecture, Wuhan University of Technology, Luoshi Road, Wuhan 430070, China; (A.R.T.); (S.W.); (B.L.); (Q.L.); (M.Z.)
- Correspondence: (W.X.); (X.Z.)
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Farooq S, Bilal S, Tahir AA, Shah AUHA. Impact of dopant ratio on the energy harvesting activity of polyaniline modified counter electrodes for Pt‐free dye‐sensitized solar cells. ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Shehna Farooq
- National Centre of Excellence in Physical Chemistry University of Peshawar Peshawar Pakistan
- Department of Chemistry University of Wah Punjab Pakistan
| | - Salma Bilal
- National Centre of Excellence in Physical Chemistry University of Peshawar Peshawar Pakistan
| | - Asif Ali Tahir
- Environment and Sustainability Institute (ESI) University of Exeter Penryn UK
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