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Supercapacitive Biosolar Cell Driven by Direct Electron Transfer between Photosynthetic Membranes and CNT Networks with Enhanced Performance

Pankratov, Dmitry; Pankratova, Galina LU ; Dyachkova, Tatiana P.; Falkman, Peter; Åkerlund, Hans Erik LU ; Toscano, Miguel D.; Chi, Qijin and Gorton, Lo LU (2017) In ACS Energy Letters 2(11). p.2635-2639
Abstract

Integrating photosynthetic cell components with nanostructured materials can facilitate the conversion of solar energy into electric power for creating sustainable carbon-neutral energy sources. With the aim at exploring efficient photoinduced biocatalytic energy conversion systems, we have used an amidated carbon nanotube (aCNT) networked matrix to integrate thylakoid membranes (TMs) for construction of a direct electron transfer-driven biosolar cell. We have evaluated the resulting photobioelectrochemical cells systematically. Compared to the carboxylated CNT (cCNT)-TMs system, the aCNT-TMs system enabled a 1.5-fold enhancement in photocurrent density. This system offers more advantages including a reduced charge-transfer resistance,... (More)

Integrating photosynthetic cell components with nanostructured materials can facilitate the conversion of solar energy into electric power for creating sustainable carbon-neutral energy sources. With the aim at exploring efficient photoinduced biocatalytic energy conversion systems, we have used an amidated carbon nanotube (aCNT) networked matrix to integrate thylakoid membranes (TMs) for construction of a direct electron transfer-driven biosolar cell. We have evaluated the resulting photobioelectrochemical cells systematically. Compared to the carboxylated CNT (cCNT)-TMs system, the aCNT-TMs system enabled a 1.5-fold enhancement in photocurrent density. This system offers more advantages including a reduced charge-transfer resistance, a lower open-circuit potential, and an improved cell stability. More remarkably, the average power density of the optimized cells was 250 times higher than that of reported analogue systems. Our results suggest the significance of physical and electronic interactions between the photosynthetic components and the support nanomaterials and may offer new clues for designing improved biosolar cells.

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author
organization
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type
Contribution to journal
publication status
published
subject
in
ACS Energy Letters
volume
2
issue
11
pages
5 pages
external identifiers
  • scopus:85033592124
  • wos:000415914100016
ISSN
2380-8195
DOI
10.1021/acsenergylett.7b00906
language
English
LU publication?
yes
id
0072475b-7dd7-445f-bbc8-59f3e6ea3eae
date added to LUP
2017-11-20 09:06:20
date last changed
2018-01-16 13:25:54
@article{0072475b-7dd7-445f-bbc8-59f3e6ea3eae,
  abstract     = {<p>Integrating photosynthetic cell components with nanostructured materials can facilitate the conversion of solar energy into electric power for creating sustainable carbon-neutral energy sources. With the aim at exploring efficient photoinduced biocatalytic energy conversion systems, we have used an amidated carbon nanotube (aCNT) networked matrix to integrate thylakoid membranes (TMs) for construction of a direct electron transfer-driven biosolar cell. We have evaluated the resulting photobioelectrochemical cells systematically. Compared to the carboxylated CNT (cCNT)-TMs system, the aCNT-TMs system enabled a 1.5-fold enhancement in photocurrent density. This system offers more advantages including a reduced charge-transfer resistance, a lower open-circuit potential, and an improved cell stability. More remarkably, the average power density of the optimized cells was 250 times higher than that of reported analogue systems. Our results suggest the significance of physical and electronic interactions between the photosynthetic components and the support nanomaterials and may offer new clues for designing improved biosolar cells.</p>},
  author       = {Pankratov, Dmitry and Pankratova, Galina and Dyachkova, Tatiana P. and Falkman, Peter and Åkerlund, Hans Erik and Toscano, Miguel D. and Chi, Qijin and Gorton, Lo},
  issn         = {2380-8195},
  language     = {eng},
  month        = {11},
  number       = {11},
  pages        = {2635--2639},
  series       = {ACS Energy Letters},
  title        = {Supercapacitive Biosolar Cell Driven by Direct Electron Transfer between Photosynthetic Membranes and CNT Networks with Enhanced Performance},
  url          = {http://dx.doi.org/10.1021/acsenergylett.7b00906},
  volume       = {2},
  year         = {2017},
}