In situ infrared studies of glucose oxidation on platinum in an alkaline medium

I. T. Bae; E. Yeager; X. Xing; C. C. Liu

doi:10.1016/0022-0728(91)87009-S

In situ infrared studies of glucose oxidation on platinum in an alkaline medium

I. T. Bae, E. Yeager, X. Xing, C. C. Liu

材料科學與工程研究所

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

103 引文斯高帕斯（Scopus）

摘要

The oxidation of α-D(+)-glucose on a platinum electrode in 0.1 M NaOH was investigated by in situ Fourier transform infrared reflection-absorption spectroscopy in the potential range, -0.76 to +0.46 V vs. Hg/HgO, OH^-. The surface adsorbates were found to involve linear CO and bridged CO. The linear CO persisted on platinum in the entire potential range with gradual shifts to higher frequencies, ca. 70 cm^-1/V while the bridged CO disappeared as the electrode potential reached -0.05 V. The oxidation products were carboxylic acid and CO₂. A potential excursion up to +0.46 V was found to cause a pH swing of more than 8 in the spectroelectrochemical thin layer due to the great extent of glucose oxidation. This was evident from the gluconic acid and CO₂ peaks in the IR spectra.

原文	???core.languages.en_GB???
頁（從 - 到）	131-145
頁數	15
期刊	Journal of Electroanalytical Chemistry
卷	309
發行號	1-2
DOIs	https://doi.org/10.1016/0022-0728(91)87009-S
出版狀態	已出版 - 10 7月 1991

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10.1016/0022-0728(91)87009-S

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title = "In situ infrared studies of glucose oxidation on platinum in an alkaline medium",

abstract = "The oxidation of α-D(+)-glucose on a platinum electrode in 0.1 M NaOH was investigated by in situ Fourier transform infrared reflection-absorption spectroscopy in the potential range, -0.76 to +0.46 V vs. Hg/HgO, OH-. The surface adsorbates were found to involve linear CO and bridged CO. The linear CO persisted on platinum in the entire potential range with gradual shifts to higher frequencies, ca. 70 cm-1/V while the bridged CO disappeared as the electrode potential reached -0.05 V. The oxidation products were carboxylic acid and CO2. A potential excursion up to +0.46 V was found to cause a pH swing of more than 8 in the spectroelectrochemical thin layer due to the great extent of glucose oxidation. This was evident from the gluconic acid and CO2 peaks in the IR spectra.",

author = "Bae, {I. T.} and E. Yeager and X. Xing and Liu, {C. C.}",

note = "Funding Information: The authors acknowledget he support of the researchb y NIH (Grant No. RR02024), the Edison Sensor Technology Center of the State of Ohio, the US Office of Naval Research,a nd the Departmento f Energy.",

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T1 - In situ infrared studies of glucose oxidation on platinum in an alkaline medium

AU - Bae, I. T.

AU - Yeager, E.

AU - Xing, X.

AU - Liu, C. C.

N1 - Funding Information: The authors acknowledget he support of the researchb y NIH (Grant No. RR02024), the Edison Sensor Technology Center of the State of Ohio, the US Office of Naval Research,a nd the Departmento f Energy.

PY - 1991/7/10

Y1 - 1991/7/10

N2 - The oxidation of α-D(+)-glucose on a platinum electrode in 0.1 M NaOH was investigated by in situ Fourier transform infrared reflection-absorption spectroscopy in the potential range, -0.76 to +0.46 V vs. Hg/HgO, OH-. The surface adsorbates were found to involve linear CO and bridged CO. The linear CO persisted on platinum in the entire potential range with gradual shifts to higher frequencies, ca. 70 cm-1/V while the bridged CO disappeared as the electrode potential reached -0.05 V. The oxidation products were carboxylic acid and CO2. A potential excursion up to +0.46 V was found to cause a pH swing of more than 8 in the spectroelectrochemical thin layer due to the great extent of glucose oxidation. This was evident from the gluconic acid and CO2 peaks in the IR spectra.

AB - The oxidation of α-D(+)-glucose on a platinum electrode in 0.1 M NaOH was investigated by in situ Fourier transform infrared reflection-absorption spectroscopy in the potential range, -0.76 to +0.46 V vs. Hg/HgO, OH-. The surface adsorbates were found to involve linear CO and bridged CO. The linear CO persisted on platinum in the entire potential range with gradual shifts to higher frequencies, ca. 70 cm-1/V while the bridged CO disappeared as the electrode potential reached -0.05 V. The oxidation products were carboxylic acid and CO2. A potential excursion up to +0.46 V was found to cause a pH swing of more than 8 in the spectroelectrochemical thin layer due to the great extent of glucose oxidation. This was evident from the gluconic acid and CO2 peaks in the IR spectra.

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JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

IS - 1-2

ER -

In situ infrared studies of glucose oxidation on platinum in an alkaline medium

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