The influence of surface composition of carbon nanotubes on the photobioelectrochemical activity of thylakoid bioanodes mediated by osmium-complex modified redox polymer
| Autor: | Qijin Chi, Galina Pankratova, Dmitry Pankratov, Lo Gorton, Fei Shen, Jianming Zhao, Mohammed Ahmed Nur, Dónal Leech |
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| Přispěvatelé: | Seventh Framework Programme, Swedish Research Council, Independent Research Fund Denmark-Nature Sciences, Science Foundation Ireland, Villum Fonden |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
General Chemical Engineering Solar energy conversion 02 engineering and technology Carbon nanotube 010402 general chemistry Electrochemistry MEMBRANES 01 natural sciences Redox RHODOBACTER-CAPSULATUS Thylakoid membrane law.invention Nanomaterials Electron transfer PHOTOSYSTEM-II law ELECTROCHEMICAL COMMUNICATION PHOTOCURRENT GENERATION ELECTRON-TRANSFER GOLD PHOTOELECTROCHEMICAL COMMUNICATION Photobioelectrochemical cell 021001 nanoscience & nanotechnology Osmium-complex modified redox polymer 0104 chemical sciences Light intensity Membrane Chemical engineering Thylakoid 0210 nano-technology |
| Zdroj: | Pankratov, D, Zhao, J, Nur, M A, Shen, F, Leech, D, Chi, Q, Pantrakova, G & Gorton, L 2019, ' The influence of surface composition of carbon nanotubes on the photobioelectrochemical activity of thylakoid bioanodes mediated by osmium-complex modified redox polymer ', Electrochimica Acta, vol. 310, pp. 20-25 . https://doi.org/10.1016/j.electacta.2019.04.097 |
| ISSN: | 7014-0030 |
| DOI: | 10.1016/j.electacta.2019.04.097 |
| Popis: | A combination of photosynthetic biocatalysts with high surface area conductive materials mediated by an osmium-complex modified redox polymer (OsRP) holds promising features for the development of sustainable "green" systems for solar energy conversion. In this work we performed a comparative study of two types of carbon nanotubes (CNTs) synthesized by pyrolysis of polymeric precursors. Both CNTs were of similar morphology, but had a different surface C/O ratio. The CNTs were utilized as a support for immobilization of thylakoid membranes, electrochemically wired through the OsRP. The photobioanodes based on the CNTs with a higher C/O ratio exhibit a higher maximum photocurrent density of 97.1 +/- 8.3 mu A cm(-2) at a light intensity of 400 W m(-2) with reduced charge transfer resistance, but had lower operational stability. Our results demonstrate the significance of investigating of electrochemical communication between the photosynthetic component, the redox mediator and the support nano-material and may offer new opportunities for designing and optimization of mediated bioelectrochemical systems. (C) 2019 Elsevier Ltd. All rights reserved. This work was financially supported by the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7/2007–2013) under REA Grant Agreement No. 609405 (Ørsted-COFUND Postdoc fellowship at DTU), the Swedish Research Council (Project No. 2014–5908), the Independent Research Fund Denmark-Nature Sciences (Project No. 7014-00302B), Science Foundation Ireland (Project 15/TIDA/2887), and from the Villum Foundation for a postdoctoral program. The authors thank Prof. Hans-Erik Åkerlund (Department of Biochemistry and Structural Biology, Lund University, Lund, Sweden) for providing the TMs. peer-reviewed 2021-04-17 |
| Databáze: | OpenAIRE |
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