Local pH change during diffusion-limited proton reduction determined by in situ infrared spectroscopy

B. H. Erné; F. Maroun; F. Ozanam; J. N. Chazalviel

doi:10.1149/1.1390793

Local pH change during diffusion-limited proton reduction determined by in situ infrared spectroscopy

B. H. Erné
, F. Maroun
, F. Ozanam
, J. N. Chazalviel

Université Versailles-Saint Quentin

Research output: Contribution to journal › Article › peer-review

Abstract

Local pH change at n-GaAs cathodes was determined quantitatively by in situ infrared spectroscopy under conditions where diffusion of H_(aq) ⁺ toward the surface is rate limiting. A shift of the near-surface pH from 2 to more than 12 was evidenced by a change of the dominant phosphate species from H₃PO₄ and H₂PO₄ ^- to HPO₄ ^2- and PO₄ ^3-.

Original language	English
Pages (from-to)	231-232
Number of pages	2
Journal	Electrochemical and Solid-State Letters
Volume	2
Issue number	5
DOIs	https://doi.org/10.1149/1.1390793
Publication status	Published - 1 Jan 1999

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10.1149/1.1390793

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title = "Local pH change during diffusion-limited proton reduction determined by in situ infrared spectroscopy",

abstract = "Local pH change at n-GaAs cathodes was determined quantitatively by in situ infrared spectroscopy under conditions where diffusion of H(aq) + toward the surface is rate limiting. A shift of the near-surface pH from 2 to more than 12 was evidenced by a change of the dominant phosphate species from H3PO4 and H2PO4 - to HPO4 2- and PO4 3-.",

author = "Ern{\'e}, \{B. H.\} and F. Maroun and F. Ozanam and Chazalviel, \{J. N.\}",

year = "1999",

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doi = "10.1149/1.1390793",

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AU - Erné, B. H.

AU - Maroun, F.

AU - Ozanam, F.

AU - Chazalviel, J. N.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Local pH change at n-GaAs cathodes was determined quantitatively by in situ infrared spectroscopy under conditions where diffusion of H(aq) + toward the surface is rate limiting. A shift of the near-surface pH from 2 to more than 12 was evidenced by a change of the dominant phosphate species from H3PO4 and H2PO4 - to HPO4 2- and PO4 3-.

AB - Local pH change at n-GaAs cathodes was determined quantitatively by in situ infrared spectroscopy under conditions where diffusion of H(aq) + toward the surface is rate limiting. A shift of the near-surface pH from 2 to more than 12 was evidenced by a change of the dominant phosphate species from H3PO4 and H2PO4 - to HPO4 2- and PO4 3-.

UR - https://www.scopus.com/pages/publications/0032654427

U2 - 10.1149/1.1390793

DO - 10.1149/1.1390793

M3 - Article

AN - SCOPUS:0032654427

SN - 1099-0062

VL - 2

SP - 231

EP - 232

JO - Electrochemical and Solid-State Letters

JF - Electrochemical and Solid-State Letters

IS - 5

ER -

Local pH change during diffusion-limited proton reduction determined by in situ infrared spectroscopy

Abstract

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