Thylakoid membrane–based photobioelectrochemical systems: Achievements, limitations, and perspectives

Pankratov, Dmitry; Pankratova, Galina; Gorton, Lo

doi:10.1016/j.coelec.2019.09.005

Cited by 24 publications

(18 citation statements)

References 42 publications

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“…The maximum power density ( P max ) of 122±10 μW cm −2 is, to our best knowledge, the highest one among PBECs using TMs as photocatalysts. According to Gorton and co‐workers, the highest power density is mere 5.3 μW cm −2 at the time of a review article publication in 2020 [25] …”

Section: Resultsmentioning

confidence: 99%

“…According to Gorton and co-workers, the highest power density is mere 5.3 μW cm À 2 at the time of a review article publication in 2020. [25]…”

Section: Performance Of a Photoelectrochemical Cellmentioning

confidence: 99%

“…Maximum current density of 97 μA cm À 2 was reported using carbon nanotubes synthesized by pyrolysis of polymeric precursors. [24] According to the recent review by Gorton and coworkers, [25] it seems that photocurrent density does not exceed 100 μA cm À 2 and power density 5.3 μW cm À 2 despite extensive research. In this study, however, we report that a great enhancement could be achieved by forming a TM/Os-RP/ ITOnp composite film on the porous graphite surface.…”

Section: Introductionmentioning

confidence: 99%

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Solar Energy Conversion through Thylakoid Membranes Wired by Osmium Redox Polymer and Indium Tin Oxide Nanoparticles

et al. 2021

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For several decades, much attention has been paid to thylakoid membranes (TMs) as photocatalysts for converting solar light to electricity. Despite extensive research, current technology provides only limited photocurrents. Here, a novel method based on TM-composite material was developed for achieving high photocurrent. When a thin film composed of TMs, osmium redox polymer (Os-RP), and indium tin oxide nanoparticles (ITOnp) was formed on a porous graphite surface, appreciable photocurrent as high as 0.5 mA cm À 2 was achieved at 0.4 V vs. Ag/AgCl. Each component plays its own role in transferring electrons from TMs to the anode, resulting in sharp drop in photocurrent with missing any component. Optimization between these three components showed 1 : 0.5 : 30 (TM/Os-RP/ ITOnp) was the best ratio. Action spectra confirmed that TMs was the origin of photocurrent. It was inferred from blocking experiments using 3-(3,4-dichlorophenyl)-1,1-dimethylurea as an inhibitor that about 41 % of photocurrent was transferred from Q A in photosystem II to the electrode via Os-RP and ITOnp. Quantum efficiencies at 430 and 660 nm were 12.2 and 18.5 %, respectively. Turnover frequency for water oxidation depended upon the amount of the composite. A complete cell with Pt/C cathode produced P max of 122 μW cm À 2 at 758 μA cm À 2 under one sun illumination, which is the highest power density to our knowledge. This study opened a possibility of using TMs as photocatalysts for solar energy conversion.

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Section: Resultsmentioning

confidence: 99%

“…According to Gorton and co-workers, the highest power density is mere 5.3 μW cm À 2 at the time of a review article publication in 2020. [25]…”

Section: Performance Of a Photoelectrochemical Cellmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Solar Energy Conversion through Thylakoid Membranes Wired by Osmium Redox Polymer and Indium Tin Oxide Nanoparticles

et al. 2021

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“…Semi-artificial photosynthesis has attracted great attention for harvesting solar energy for electricity or chemical generation [5]. Instead of isolated photosynthetic proteins (e.g., PSII), photosynthetic microorganisms such as algae [221], cyanobacteria [222][223][224][225] and purple bacteria [226], or extracted organelles such as thylakoids [227] have been studied for biophotoelectrochemical systems. The development of 3D structured electrodes increased the loading capacity which enhances photocurrents [228].…”

Section: Whole-cell Based Semi-artificial Photosynthesismentioning

confidence: 99%

Membrane Protein Modified Electrodes in Bioelectrocatalysis

2020

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Transmembrane proteins involved in metabolic redox reactions and photosynthesis catalyse a plethora of key energy-conversion processes and are thus of great interest for bioelectrocatalysis-based applications. The development of membrane protein modified electrodes has made it possible to efficiently exchange electrons between proteins and electrodes, allowing mechanistic studies and potentially applications in biofuels generation and energy conversion. Here, we summarise the most common electrode modification and their characterisation techniques for membrane proteins involved in biofuels conversion and semi-artificial photosynthesis. We discuss the challenges of applications of membrane protein modified electrodes for bioelectrocatalysis and comment on emerging methods and future directions, including recent advances in membrane protein reconstitution strategies and the development of microbial electrosynthesis and whole-cell semi-artificial photosynthesis.

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“…Recent attempts to mimic the photosynthesis process have been made; Photosystem I, Photosystem II (PSII), or full thylakoid were coupled with electrodes and with different redox‐active mediators that act as electron acceptors (or donors). The electron relay units enabled mediated electron transfer (MET) processes between the proteins and the electrodes . A PSII‐based photoanode was coupled to a bilirubin oxidase(BOD)/single‐walled carbon nanotubes (SWCNTs) biocathode and led to the construction of a PBEC that generates electrical power .…”

Section: Introductionmentioning

confidence: 99%

Bismuth Vanadate/Bilirubin Oxidase Photo(bio)electrochemical Cells for Unbiased, Light‐Triggered Electrical Power Generation

2020

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The construction of bias‐ and donor‐free photobioelectrochemical cells for the generation of light‐triggered electrical power is presented. The developed oxygen reduction biocathodes are based on bilirubin oxidase (BOD) that originates from Myrothecium verrucaria (MvBOD) and a thermophilic Bacillus pumilus (BpBOD). Methods to entrap the BOD with 2,2′‐azino‐bis(3‐ethylbenzothiazoline‐6‐sulfonic acid) (ABTS) redox molecules in a polydopamine layer are presented. A pH‐independent, positively charged pyrenebetaine linker was synthesized, utilized, and led to a threefold improvement to the bioelectrocatalytic current. Both the developed polydopamine/ABTS/MvBOD and the pyrenebetaine/BpBOD biocathodes were further coupled with BiVO4/cobalt phosphate water‐oxidation photoanodes to construct biotic/abiotic photobioelectrochemical cells, which generated power outputs of 0.74 and 0.85 mW cm−2, respectively. The presented methods are versatile, show the strength of biotic/abiotic hybrids, and can be further used to couple different redox enzymes with electrodes.

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Thylakoid membrane–based photobioelectrochemical systems: Achievements, limitations, and perspectives

Cited by 24 publications

References 42 publications

Solar Energy Conversion through Thylakoid Membranes Wired by Osmium Redox Polymer and Indium Tin Oxide Nanoparticles

Solar Energy Conversion through Thylakoid Membranes Wired by Osmium Redox Polymer and Indium Tin Oxide Nanoparticles

Membrane Protein Modified Electrodes in Bioelectrocatalysis

Bismuth Vanadate/Bilirubin Oxidase Photo(bio)electrochemical Cells for Unbiased, Light‐Triggered Electrical Power Generation

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