Highly sensitive H2O2 sensor based on porous bimetallic oxide Ce1−xTbxOy derived from homeotypic Ln-MOFs

Lei Zhao; Kaian Sun; Nuerguli Youliwasi; Hailing Guo; Ge Yang; Feng Jiao; Bin Dong; Yongming Chai; Svetlana Mintova; Chenguang Liu

Highly sensitive H2O2 sensor based on porous bimetallic oxide Ce1−xTbxOy derived from homeotypic Ln-MOFs

Lei Zhao ¹ Kaian Sun ¹ Nuerguli Youliwasi ¹ Hailing Guo ¹ Ge Yang ¹ Feng Jiao ¹ Bin Dong ² Yongming Chai ¹ Svetlana Mintova ^{3, 1} Chenguang Liu ¹

1 China University of Petroleum

2 LVA - Laboratoire Vibrations Acoustique

3 LCS - Laboratoire catalyse et spectrochimie

Abstract : Development of a sensitive and reliable method towards detection of hydrogen peroxide (H2O2) is important for biomedical and environmental applications. The preparation of electrochemical sensors with high selectivity and sensitivity toward H2O2 using porous homeotypic bi-metallic Ce1−xTbxOy crystals is reported. The porous homeotypic bi-metallic Ce1−xTbxOy crystals are prepared by direct pyrolysis of CexTb1−x-MOFs precursors. The porous homeotypic bi-metallic Ce1−xTbxOy crystals are deposited on glassy carbon electrodes, and subsequently apply for detection of H2O2 in an alkaline media. The porous Ce1−xTbxOy layers show high stability, high sensitivity toward H2O2 (1.6831 µA·Mm−1) (12.99 µA∙mM−1∙cm−2) in a broad linear range (0.1 µm–4.2 mM) with a detection limit of 7.7 µm (S/N = 3), and fast response (less than 10 s).

Keywords : Sensor Hydrogen peroxide Porous homeotypic bi-metallic Ce1−xTbxOy MOFs Density function theory

Type de document :

Article dans une revue

Domaine :

Chimie

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https://hal-normandie-univ.archives-ouvertes.fr/hal-01992005
Contributeur : Pascal Roland <>
Soumis le : jeudi 24 janvier 2019 - 11:10:54
Dernière modification le : dimanche 16 juin 2019 - 01:17:29

Highly sensitive H2O2 sensor based on porous bimetallic oxide Ce1−xTbxOy derived from homeotypic Ln-MOFs

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Highly sensitive H2O2 sensor based on porous bimetallic oxide Ce1−xTbxOy derived from homeotypic Ln-MOFs

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