Thylakoid-deposited micro-pillar electrodes for enhanced direct extraction of photosynthetic electrons

Donghyun Ryu, Yong Jae Kim, Seon Il Kim, Hyeonaug Hong, Hyun S. Ahn, Kyunghoon Kim, Wonhyoung Ryu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Photosynthesis converts solar energy to electricity in a highly efficient manner. Since only water is needed as fuel for energy conversion, this highly efficient energy conversion process has been rigorously investigated. In particular, photosynthetic apparatus, such as photosystem II (PSII), photosystem I (PSI), or thylakoids, have been isolated from various plants to construct bio-hybrid anodes. Although PSII or PSI decorated anodes have shown potentials, there still remain challenges, such as poor stability of PSII-based systems or need for electron donors other than water molecules of PSI-based systems. Thylakoid membranes are relatively stable after isolation and they contain all the necessary photosynthetic apparatus including the PSII and PSI. To increase electrical connections between thylakoids and anodes, nanomaterials such as carbon nanotubes, nanowires, nanoparticles, or graphene have been employed. However, since they rely on the secondary electrical connections between thylakoids and anodes; it is desired to achieve larger direct contacts between them. Here, we aimed to develop micro-pillar (MP) array anodes to maximize direct contact with thylakoids. The thylakoid morphology was analyzed and the MP array was designed to maximize direct contact with thylakoids. The performance of MP anodes and a photosynthetic fuel cell based on MP electrodes was demonstrated and analyzed.

Original languageEnglish
Article number189
JournalNanomaterials
Volume8
Issue number4
DOIs
Publication statusPublished - 2018 Apr

Fingerprint

Photosystem I Protein Complex
Anodes
Photosystem II Protein Complex
Electrodes
Electrons
Energy conversion
Carbon Nanotubes
Graphite
Photosynthesis
Water
Nanostructured materials
Solar energy
Graphene
Nanowires
Fuel cells
Carbon nanotubes
Electricity
Nanoparticles
Membranes
Molecules

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)

Cite this

Ryu, Donghyun ; Kim, Yong Jae ; Kim, Seon Il ; Hong, Hyeonaug ; Ahn, Hyun S. ; Kim, Kyunghoon ; Ryu, Wonhyoung. / Thylakoid-deposited micro-pillar electrodes for enhanced direct extraction of photosynthetic electrons. In: Nanomaterials. 2018 ; Vol. 8, No. 4.
@article{171ee9b33ce4438191707989af66b429,
title = "Thylakoid-deposited micro-pillar electrodes for enhanced direct extraction of photosynthetic electrons",
abstract = "Photosynthesis converts solar energy to electricity in a highly efficient manner. Since only water is needed as fuel for energy conversion, this highly efficient energy conversion process has been rigorously investigated. In particular, photosynthetic apparatus, such as photosystem II (PSII), photosystem I (PSI), or thylakoids, have been isolated from various plants to construct bio-hybrid anodes. Although PSII or PSI decorated anodes have shown potentials, there still remain challenges, such as poor stability of PSII-based systems or need for electron donors other than water molecules of PSI-based systems. Thylakoid membranes are relatively stable after isolation and they contain all the necessary photosynthetic apparatus including the PSII and PSI. To increase electrical connections between thylakoids and anodes, nanomaterials such as carbon nanotubes, nanowires, nanoparticles, or graphene have been employed. However, since they rely on the secondary electrical connections between thylakoids and anodes; it is desired to achieve larger direct contacts between them. Here, we aimed to develop micro-pillar (MP) array anodes to maximize direct contact with thylakoids. The thylakoid morphology was analyzed and the MP array was designed to maximize direct contact with thylakoids. The performance of MP anodes and a photosynthetic fuel cell based on MP electrodes was demonstrated and analyzed.",
author = "Donghyun Ryu and Kim, {Yong Jae} and Kim, {Seon Il} and Hyeonaug Hong and Ahn, {Hyun S.} and Kyunghoon Kim and Wonhyoung Ryu",
year = "2018",
month = "4",
doi = "10.3390/nano8040189",
language = "English",
volume = "8",
journal = "Nanomaterials",
issn = "2079-4991",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "4",

}

Thylakoid-deposited micro-pillar electrodes for enhanced direct extraction of photosynthetic electrons. / Ryu, Donghyun; Kim, Yong Jae; Kim, Seon Il; Hong, Hyeonaug; Ahn, Hyun S.; Kim, Kyunghoon; Ryu, Wonhyoung.

In: Nanomaterials, Vol. 8, No. 4, 189, 04.2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Thylakoid-deposited micro-pillar electrodes for enhanced direct extraction of photosynthetic electrons

AU - Ryu, Donghyun

AU - Kim, Yong Jae

AU - Kim, Seon Il

AU - Hong, Hyeonaug

AU - Ahn, Hyun S.

AU - Kim, Kyunghoon

AU - Ryu, Wonhyoung

PY - 2018/4

Y1 - 2018/4

N2 - Photosynthesis converts solar energy to electricity in a highly efficient manner. Since only water is needed as fuel for energy conversion, this highly efficient energy conversion process has been rigorously investigated. In particular, photosynthetic apparatus, such as photosystem II (PSII), photosystem I (PSI), or thylakoids, have been isolated from various plants to construct bio-hybrid anodes. Although PSII or PSI decorated anodes have shown potentials, there still remain challenges, such as poor stability of PSII-based systems or need for electron donors other than water molecules of PSI-based systems. Thylakoid membranes are relatively stable after isolation and they contain all the necessary photosynthetic apparatus including the PSII and PSI. To increase electrical connections between thylakoids and anodes, nanomaterials such as carbon nanotubes, nanowires, nanoparticles, or graphene have been employed. However, since they rely on the secondary electrical connections between thylakoids and anodes; it is desired to achieve larger direct contacts between them. Here, we aimed to develop micro-pillar (MP) array anodes to maximize direct contact with thylakoids. The thylakoid morphology was analyzed and the MP array was designed to maximize direct contact with thylakoids. The performance of MP anodes and a photosynthetic fuel cell based on MP electrodes was demonstrated and analyzed.

AB - Photosynthesis converts solar energy to electricity in a highly efficient manner. Since only water is needed as fuel for energy conversion, this highly efficient energy conversion process has been rigorously investigated. In particular, photosynthetic apparatus, such as photosystem II (PSII), photosystem I (PSI), or thylakoids, have been isolated from various plants to construct bio-hybrid anodes. Although PSII or PSI decorated anodes have shown potentials, there still remain challenges, such as poor stability of PSII-based systems or need for electron donors other than water molecules of PSI-based systems. Thylakoid membranes are relatively stable after isolation and they contain all the necessary photosynthetic apparatus including the PSII and PSI. To increase electrical connections between thylakoids and anodes, nanomaterials such as carbon nanotubes, nanowires, nanoparticles, or graphene have been employed. However, since they rely on the secondary electrical connections between thylakoids and anodes; it is desired to achieve larger direct contacts between them. Here, we aimed to develop micro-pillar (MP) array anodes to maximize direct contact with thylakoids. The thylakoid morphology was analyzed and the MP array was designed to maximize direct contact with thylakoids. The performance of MP anodes and a photosynthetic fuel cell based on MP electrodes was demonstrated and analyzed.

UR - http://www.scopus.com/inward/record.url?scp=85044647521&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85044647521&partnerID=8YFLogxK

U2 - 10.3390/nano8040189

DO - 10.3390/nano8040189

M3 - Article

AN - SCOPUS:85044647521

VL - 8

JO - Nanomaterials

JF - Nanomaterials

SN - 2079-4991

IS - 4

M1 - 189

ER -