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Ievgen Nedrygailov
나노물질 및 화학반응 연구단
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Charge Transfer during the Aluminum-Water Reaction Studied with Schottky Nanodiode Sensors

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Title
Charge Transfer during the Aluminum-Water Reaction Studied with Schottky Nanodiode Sensors
Author(s)
Ievgen I. Nedrygailov; Yeob Heo; Heeyoung Kim; Jeong Young Park
Publication Date
2019-12
Journal
ACS OMEGA, v.4, no.24, pp.20838 - 20843
Publisher
AMER PHYSICAL SOC
Abstract
© 2019 American Chemical Society.The aluminum-water reaction is a promising source for hydrogen production. However, experimental studies of this reaction are difficult because of the highly concentrated alkaline solution used to activate the surface of aluminum. Here, we show that the reaction kinetics can be monitored in real time by a Schottky diode sensor, consisting of an ultrathin aluminum film deposited on a semiconductor substrate. Charge resulting from the corrosion of the aluminum film causes an electrical signal in the sensor, which is proportional to the rate of the chemical process. We discuss the possible mechanisms for the reaction-induced charge generation and transfer, as well as the use of Schottky diode based sensors for operando studies of the aluminum-water reaction and similar reactions on metals in concentrated alkaline solutions
URI
https://pr.ibs.re.kr/handle/8788114/6748
ISSN
2470-1343
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
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ACS Omega 2019, 4, 20838−20843.pdfDownload

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