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Water electrolysis and energy harvesting with zero-dimensional ion-sensitive field-effect transistors

Abstract : 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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https://hal.archives-ouvertes.fr/hal-00871930
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Submitted on : Tuesday, July 12, 2022 - 1:45:26 PM
Last modification on : Tuesday, September 27, 2022 - 4:09:55 AM

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N. Clement, K. Nishiguchi, Jean-François Dufrêche, David Guérin, A. Fujiwara, et al.. Water electrolysis and energy harvesting with zero-dimensional ion-sensitive field-effect transistors. Nano Letters, American Chemical Society, 2013, 13 (8), pp.3903-3908. ⟨10.1021/nl4019879⟩. ⟨hal-00871930⟩

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