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Development of biophoto anodes using Ulvophyceae macroalgae

Choque, Sergio ; Zuñiga, Cesar ; González, Alberto ; Moenne, Alejandra ; Antiochia, Riccarda ; Gorton, Lo LU and Tasca, Federico LU (2023) In Journal of Materials Chemistry A 11(6). p.2661-2669
Abstract

Three different macroalgae, i.e., U. lactuca, U. linza, and U. compressa, have been studied for biological photovoltaic energy system (BPVE) using edge plane pyrolytic graphite as the supporting working electrode. The studied biophotoanodes were evaluated in terms of direct electron transfer (DET) and mediated electron transfer (MET) processes. Ferrocyanide (FeCN), p-benzoquinone (BQ), and 1,4-naphthoquinone (NQ) were used as a mediator during biophotovoltaic experiments in the presence and absence of applied light. The electrochemical characterization was performed by cyclic voltammetry (CV) and chronoamperometry. The results show that using BQ during the MET process, the electron transfer to the graphite electrode drastically... (More)

Three different macroalgae, i.e., U. lactuca, U. linza, and U. compressa, have been studied for biological photovoltaic energy system (BPVE) using edge plane pyrolytic graphite as the supporting working electrode. The studied biophotoanodes were evaluated in terms of direct electron transfer (DET) and mediated electron transfer (MET) processes. Ferrocyanide (FeCN), p-benzoquinone (BQ), and 1,4-naphthoquinone (NQ) were used as a mediator during biophotovoltaic experiments in the presence and absence of applied light. The electrochemical characterization was performed by cyclic voltammetry (CV) and chronoamperometry. The results show that using BQ during the MET process, the electron transfer to the graphite electrode drastically increases during light conditions, where the most promising biophotoanode was in the presence of BQ and U. linza with a current density of 72.1 ± 9.1 μA cm−2, which represents an increase of almost 2000 times over DET results. Similar results were obtained with U. lactuca and U. compressa. The high performance in the presence of BQ for the three macroalgae has been attributed to the favorable penetration of the quinone molecule to the cytoplasmic membrane, allowing the direct exchange of electrons with photosystem II in the thylakoid structure.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Materials Chemistry A
volume
11
issue
6
pages
9 pages
publisher
Royal Society of Chemistry
external identifiers
  • scopus:85146192851
ISSN
2050-7488
DOI
10.1039/d2ta07046d
language
English
LU publication?
yes
id
9fa5bfd2-32b7-434b-9979-cdb370b14221
date added to LUP
2023-02-16 09:40:27
date last changed
2024-01-10 08:32:30
@article{9fa5bfd2-32b7-434b-9979-cdb370b14221,
  abstract     = {{<p>Three different macroalgae, i.e., U. lactuca, U. linza, and U. compressa, have been studied for biological photovoltaic energy system (BPVE) using edge plane pyrolytic graphite as the supporting working electrode. The studied biophotoanodes were evaluated in terms of direct electron transfer (DET) and mediated electron transfer (MET) processes. Ferrocyanide (FeCN), p-benzoquinone (BQ), and 1,4-naphthoquinone (NQ) were used as a mediator during biophotovoltaic experiments in the presence and absence of applied light. The electrochemical characterization was performed by cyclic voltammetry (CV) and chronoamperometry. The results show that using BQ during the MET process, the electron transfer to the graphite electrode drastically increases during light conditions, where the most promising biophotoanode was in the presence of BQ and U. linza with a current density of 72.1 ± 9.1 μA cm<sup>−2</sup>, which represents an increase of almost 2000 times over DET results. Similar results were obtained with U. lactuca and U. compressa. The high performance in the presence of BQ for the three macroalgae has been attributed to the favorable penetration of the quinone molecule to the cytoplasmic membrane, allowing the direct exchange of electrons with photosystem II in the thylakoid structure.</p>}},
  author       = {{Choque, Sergio and Zuñiga, Cesar and González, Alberto and Moenne, Alejandra and Antiochia, Riccarda and Gorton, Lo and Tasca, Federico}},
  issn         = {{2050-7488}},
  language     = {{eng}},
  number       = {{6}},
  pages        = {{2661--2669}},
  publisher    = {{Royal Society of Chemistry}},
  series       = {{Journal of Materials Chemistry A}},
  title        = {{Development of biophoto anodes using Ulvophyceae macroalgae}},
  url          = {{http://dx.doi.org/10.1039/d2ta07046d}},
  doi          = {{10.1039/d2ta07046d}},
  volume       = {{11}},
  year         = {{2023}},
}