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

研究成果: Article査読

15 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)8130-8133
ページ数4
ジャーナルAngewandte Chemie - International Edition
56
28
DOI
出版ステータスPublished - 2017 7 3
外部発表はい

ASJC Scopus subject areas

  • 触媒
  • 化学 (全般)

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