Water Electrolysis and Energy Harvesting with Zero-Dimensional Ion-Sensitive Field-Effect Transistors

The relationship of the gas bubble size to the size distribution critically influences the effectiveness of electrochemical processes. Several optical and acoustical techniques have been used to characterize the size and emission frequency of bubbles. Here, we used zero-dimensional (0D) ion-sensitiv...

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Bibliographic Details
Published inNano letters Vol. 13; no. 8; pp. 3903 - 3908
Main Authors Clément, N, Nishiguchi, K, Dufreche, J. F, Guerin, D, Fujiwara, A, Vuillaume, D
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 14.08.2013
Subjects
Arrays
Bubbles
Chemical Sciences
Electrolysis
Electronics
Emission
Engineering Sciences
Field effect transistors
Optical data processing
Semiconductor devices
Statistics
ISFET
bubble detection
0D Transistor
energy harvesting
Si nanowire
water electrolysis
hydrogen production
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Summary:The relationship of the gas bubble size to the size distribution critically influences the effectiveness of electrochemical processes. Several optical and acoustical techniques have been used to characterize the size and emission frequency of bubbles. Here, we used zero-dimensional (0D) ion-sensitive field-effect transistors (ISFETs) buried under a microbath to detect the emission of individual bubbles electrically and to generate statistics on the bubble emission time. The bubble size was evaluated via a simple model of the electrolytic current. We suggest that energy lost during water electrolysis could be used to generate electric pulses at an optimal efficiency with an array of 0D ISFETs.
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ISSN:1530-6984
1530-6992
DOI:10.1021/nl4019879