From Extended Nanofluidics to an Autonomous Solar-Light-Driven Micro Fuel-Cell Device

Yuriy Pihosh, Jin Uemura, Ivan Turkevych, Kazuma Mawatari, Yutaka Kazoe, Adelina Smirnova, Takehiko Kitamori

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Autonomous micro/nano mechanical, chemical, and biomedical sensors require persistent power sources scaled to their size. Realization of autonomous micro-power sources is a challenging task, as it requires combination of wireless energy supply, conversion, storage, and delivery to the sensor. Herein, we realized a solar-light-driven power source that consists of a micro fuel cell (μFC) and a photocatalytic micro fuel generator (μFG) integrated on a single microfluidic chip. The μFG produces hydrogen by photocatalytic water splitting under solar light. The hydrogen fuel is then consumed by the μFC to generate electricity. Importantly, the by-product water returns back to the photocatalytic μFG via recirculation loop without losses. Both devices rely on novel phenomena in extended-nano-fluidic channels that ensure ultra-fast proton transport. As a proof of concept, we demonstrate that μFG/μFC source achieves remarkable energy density of ca. 17.2 mWh cm−2 at room temperature.

Original languageEnglish
Pages (from-to)8130-8133
Number of pages4
JournalAngewandte Chemie - International Edition
Volume56
Issue number28
DOIs
Publication statusPublished - 2017 Jan 1

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Nanofluidics
Fuel cells
Hydrogen fuels
Water
Sensors
Fluidics
Microfluidics
Byproducts
Protons
Hydrogen
Electricity
Temperature

Keywords

  • fuel cells
  • hydrogen production
  • nanofluidics
  • photocatalysis
  • water splitting

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Cite this

From Extended Nanofluidics to an Autonomous Solar-Light-Driven Micro Fuel-Cell Device. / Pihosh, Yuriy; Uemura, Jin; Turkevych, Ivan; Mawatari, Kazuma; Kazoe, Yutaka; Smirnova, Adelina; Kitamori, Takehiko.

In: Angewandte Chemie - International Edition, Vol. 56, No. 28, 01.01.2017, p. 8130-8133.

Research output: Contribution to journalArticle

Pihosh, Y, Uemura, J, Turkevych, I, Mawatari, K, Kazoe, Y, Smirnova, A & Kitamori, T 2017, 'From Extended Nanofluidics to an Autonomous Solar-Light-Driven Micro Fuel-Cell Device', Angewandte Chemie - International Edition, vol. 56, no. 28, pp. 8130-8133. https://doi.org/10.1002/anie.201703227
Pihosh, Yuriy ; Uemura, Jin ; Turkevych, Ivan ; Mawatari, Kazuma ; Kazoe, Yutaka ; Smirnova, Adelina ; Kitamori, Takehiko. / From Extended Nanofluidics to an Autonomous Solar-Light-Driven Micro Fuel-Cell Device. In: Angewandte Chemie - International Edition. 2017 ; Vol. 56, No. 28. pp. 8130-8133.
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