Anti-Poisoning Electrode for Real-Time In-Situ Monitoring of Hydrogen Sulfide Release

Nithiya Jeromiyas; Veerappan Mani; Pu-Chieh Chang; Chih-Hung Huang; Khaled N. Salama; Sheng-Tung Huang

doi:10.1016/j.snb.2020.128844

Anti-Poisoning Electrode for Real-Time In-Situ Monitoring of Hydrogen Sulfide Release

Nithiya Jeromiyas, Veerappan Mani, Pu-Chieh Chang, Chih-Hung Huang, Khaled N. Salama, Sheng-Tung Huang

King Abdullah University of Science and Technology

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

20 Scopus citations

Abstract

Electrode poisoning and interferences from complex biological environments are major challenges in the development of in-situ H2S sensors. To circumvent these issues, herein a robust electrode based on reduced graphene oxide-molybdenum disulfide nanohybrid (RGO-MoS2) and polymerized o-phenylenediamine (POPD) is developed. The POPD/RGO-MoS2-modified electrode catalyzed H2S oxidation at a minimized overpotential (+ 0.15 V vs. Ag/AgCl). A new strategy based on inherent material properties was implemented to alleviate the electrode-poisoning problem. The nano-tailored interface blocks 2.5-fold surplus levels of interferences because of its exclusive size-exclusion property and electrostatic interactions. Moreover, this method with a response time of fewer than 5 s displayed a detection limit of 10 nM, which covers the endogenous H2S levels. Practicality tests in various biological media yielded valuable recoveries of 96.4–97.8%. The amounts of H2S released from the bacterial cells were quantified in real-time over a continuous time span of 5 h.

Original language	English (US)
Pages (from-to)	128844
Journal	Sensors and Actuators B: Chemical
DOIs	https://doi.org/10.1016/j.snb.2020.128844
State	Published - Sep 6 2020

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported by the Ministry of Science and Technology (MOST; 107-2113-M-027-007 – and 108-2221-E-027-063–) Taiwan (ROC) and King Abdullah University of Science and Technology (KAUST), Saudi Arabia.

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title = "Anti-Poisoning Electrode for Real-Time In-Situ Monitoring of Hydrogen Sulfide Release",

abstract = "Electrode poisoning and interferences from complex biological environments are major challenges in the development of in-situ H2S sensors. To circumvent these issues, herein a robust electrode based on reduced graphene oxide-molybdenum disulfide nanohybrid (RGO-MoS2) and polymerized o-phenylenediamine (POPD) is developed. The POPD/RGO-MoS2-modified electrode catalyzed H2S oxidation at a minimized overpotential (+ 0.15 V vs. Ag/AgCl). A new strategy based on inherent material properties was implemented to alleviate the electrode-poisoning problem. The nano-tailored interface blocks 2.5-fold surplus levels of interferences because of its exclusive size-exclusion property and electrostatic interactions. Moreover, this method with a response time of fewer than 5 s displayed a detection limit of 10 nM, which covers the endogenous H2S levels. Practicality tests in various biological media yielded valuable recoveries of 96.4–97.8%. The amounts of H2S released from the bacterial cells were quantified in real-time over a continuous time span of 5 h.",

author = "Nithiya Jeromiyas and Veerappan Mani and Pu-Chieh Chang and Chih-Hung Huang and Salama, {Khaled N.} and Sheng-Tung Huang",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by the Ministry of Science and Technology (MOST; 107-2113-M-027-007 – and 108-2221-E-027-063–) Taiwan (ROC) and King Abdullah University of Science and Technology (KAUST), Saudi Arabia.",

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AU - Jeromiyas, Nithiya

AU - Mani, Veerappan

AU - Chang, Pu-Chieh

AU - Huang, Chih-Hung

AU - Salama, Khaled N.

AU - Huang, Sheng-Tung

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by the Ministry of Science and Technology (MOST; 107-2113-M-027-007 – and 108-2221-E-027-063–) Taiwan (ROC) and King Abdullah University of Science and Technology (KAUST), Saudi Arabia.

PY - 2020/9/6

Y1 - 2020/9/6

N2 - Electrode poisoning and interferences from complex biological environments are major challenges in the development of in-situ H2S sensors. To circumvent these issues, herein a robust electrode based on reduced graphene oxide-molybdenum disulfide nanohybrid (RGO-MoS2) and polymerized o-phenylenediamine (POPD) is developed. The POPD/RGO-MoS2-modified electrode catalyzed H2S oxidation at a minimized overpotential (+ 0.15 V vs. Ag/AgCl). A new strategy based on inherent material properties was implemented to alleviate the electrode-poisoning problem. The nano-tailored interface blocks 2.5-fold surplus levels of interferences because of its exclusive size-exclusion property and electrostatic interactions. Moreover, this method with a response time of fewer than 5 s displayed a detection limit of 10 nM, which covers the endogenous H2S levels. Practicality tests in various biological media yielded valuable recoveries of 96.4–97.8%. The amounts of H2S released from the bacterial cells were quantified in real-time over a continuous time span of 5 h.

AB - Electrode poisoning and interferences from complex biological environments are major challenges in the development of in-situ H2S sensors. To circumvent these issues, herein a robust electrode based on reduced graphene oxide-molybdenum disulfide nanohybrid (RGO-MoS2) and polymerized o-phenylenediamine (POPD) is developed. The POPD/RGO-MoS2-modified electrode catalyzed H2S oxidation at a minimized overpotential (+ 0.15 V vs. Ag/AgCl). A new strategy based on inherent material properties was implemented to alleviate the electrode-poisoning problem. The nano-tailored interface blocks 2.5-fold surplus levels of interferences because of its exclusive size-exclusion property and electrostatic interactions. Moreover, this method with a response time of fewer than 5 s displayed a detection limit of 10 nM, which covers the endogenous H2S levels. Practicality tests in various biological media yielded valuable recoveries of 96.4–97.8%. The amounts of H2S released from the bacterial cells were quantified in real-time over a continuous time span of 5 h.

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UR - https://linkinghub.elsevier.com/retrieve/pii/S0925400520311916

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JO - Sensors and Actuators B: Chemical

JF - Sensors and Actuators B: Chemical

ER -

Anti-Poisoning Electrode for Real-Time In-Situ Monitoring of Hydrogen Sulfide Release

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