Hydrazine Detection during Ammonia Electro-oxidation Using an Aggregation-Induced Emission Dye

Kumar Siddharth; Parvej Alam; Md Delowar Hossain; Ni Xie; Gabriel Sikukuu Nambafu; Faisal Rehman; Jacky W.Y. Lam; Guohua Chen; Jinping Cheng; Zhengtang Luo; Guanghao Chen; Ben Zhong Tang; Minhua Shao

doi:10.1021/jacs.0c13178

Hydrazine Detection during Ammonia Electro-oxidation Using an Aggregation-Induced Emission Dye

Kumar Siddharth, Parvej Alam, Md Delowar Hossain, Ni Xie, Gabriel Sikukuu Nambafu, Faisal Rehman, Jacky W.Y. Lam, Guohua Chen, Jinping Cheng, Zhengtang Luo, Guanghao Chen, Ben Zhong Tang^*, Minhua Shao^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

57 Citations (Scopus)

Abstract

Ammonia electro-oxidation is an extremely significant reaction with regards to the nitrogen cycle, hydrogen economy, and wastewater remediation. The design of efficient electrocatalysts for use in the ammonia electro-oxidation reaction (AOR) requires comprehensive understanding of the mechanism and intermediates involved. In this study, aggregation-induced emission (AIE), a robust fluorescence sensing platform, is employed for the sensitive and qualitative detection of hydrazine (N₂H₄), one of the important intermediates during the AOR. Here, we successfully identified N₂H₄ as a main intermediate during the AOR on the model Pt/C electrocatalyst using 4-(1,2,2-triphenylvinyl)benzaldehyde (TPE-CHO), an aggregation-induced emission luminogen (AIEgen). We propose the AOR mechanism for Pt with N₂H₄ being formed during the dimerization process (NH₂ coupling) within the framework of the Gerischer and Mauerer mechanism. The unique chemodosimeter approach demonstrated in this study opens a novel pathway for understanding electrochemical reactions in depth.

Original language	English
Pages (from-to)	2433-2440
Journal	Journal of the American Chemical Society
Volume	143
Issue number	5
Online published	28 Jan 2021
DOIs	https://doi.org/10.1021/jacs.0c13178
Publication status	Published - 10 Feb 2021
Externally published	Yes

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title = "Hydrazine Detection during Ammonia Electro-oxidation Using an Aggregation-Induced Emission Dye",

abstract = "Ammonia electro-oxidation is an extremely significant reaction with regards to the nitrogen cycle, hydrogen economy, and wastewater remediation. The design of efficient electrocatalysts for use in the ammonia electro-oxidation reaction (AOR) requires comprehensive understanding of the mechanism and intermediates involved. In this study, aggregation-induced emission (AIE), a robust fluorescence sensing platform, is employed for the sensitive and qualitative detection of hydrazine (N2H4), one of the important intermediates during the AOR. Here, we successfully identified N2H4 as a main intermediate during the AOR on the model Pt/C electrocatalyst using 4-(1,2,2-triphenylvinyl)benzaldehyde (TPE-CHO), an aggregation-induced emission luminogen (AIEgen). We propose the AOR mechanism for Pt with N2H4 being formed during the dimerization process (NH2 coupling) within the framework of the Gerischer and Mauerer mechanism. The unique chemodosimeter approach demonstrated in this study opens a novel pathway for understanding electrochemical reactions in depth.",

author = "Kumar Siddharth and Parvej Alam and Hossain, {Md Delowar} and Ni Xie and Nambafu, {Gabriel Sikukuu} and Faisal Rehman and Lam, {Jacky W.Y.} and Guohua Chen and Jinping Cheng and Zhengtang Luo and Guanghao Chen and Tang, {Ben Zhong} and Minhua Shao",

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doi = "10.1021/jacs.0c13178",

language = "English",

volume = "143",

pages = "2433--2440",

journal = "Journal of the American Chemical Society",

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TY - JOUR

T1 - Hydrazine Detection during Ammonia Electro-oxidation Using an Aggregation-Induced Emission Dye

AU - Siddharth, Kumar

AU - Alam, Parvej

AU - Hossain, Md Delowar

AU - Xie, Ni

AU - Nambafu, Gabriel Sikukuu

AU - Rehman, Faisal

AU - Lam, Jacky W.Y.

AU - Chen, Guohua

AU - Cheng, Jinping

AU - Luo, Zhengtang

AU - Chen, Guanghao

AU - Tang, Ben Zhong

AU - Shao, Minhua

PY - 2021/2/10

Y1 - 2021/2/10

N2 - Ammonia electro-oxidation is an extremely significant reaction with regards to the nitrogen cycle, hydrogen economy, and wastewater remediation. The design of efficient electrocatalysts for use in the ammonia electro-oxidation reaction (AOR) requires comprehensive understanding of the mechanism and intermediates involved. In this study, aggregation-induced emission (AIE), a robust fluorescence sensing platform, is employed for the sensitive and qualitative detection of hydrazine (N2H4), one of the important intermediates during the AOR. Here, we successfully identified N2H4 as a main intermediate during the AOR on the model Pt/C electrocatalyst using 4-(1,2,2-triphenylvinyl)benzaldehyde (TPE-CHO), an aggregation-induced emission luminogen (AIEgen). We propose the AOR mechanism for Pt with N2H4 being formed during the dimerization process (NH2 coupling) within the framework of the Gerischer and Mauerer mechanism. The unique chemodosimeter approach demonstrated in this study opens a novel pathway for understanding electrochemical reactions in depth.

AB - Ammonia electro-oxidation is an extremely significant reaction with regards to the nitrogen cycle, hydrogen economy, and wastewater remediation. The design of efficient electrocatalysts for use in the ammonia electro-oxidation reaction (AOR) requires comprehensive understanding of the mechanism and intermediates involved. In this study, aggregation-induced emission (AIE), a robust fluorescence sensing platform, is employed for the sensitive and qualitative detection of hydrazine (N2H4), one of the important intermediates during the AOR. Here, we successfully identified N2H4 as a main intermediate during the AOR on the model Pt/C electrocatalyst using 4-(1,2,2-triphenylvinyl)benzaldehyde (TPE-CHO), an aggregation-induced emission luminogen (AIEgen). We propose the AOR mechanism for Pt with N2H4 being formed during the dimerization process (NH2 coupling) within the framework of the Gerischer and Mauerer mechanism. The unique chemodosimeter approach demonstrated in this study opens a novel pathway for understanding electrochemical reactions in depth.

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U2 - 10.1021/jacs.0c13178

DO - 10.1021/jacs.0c13178

M3 - RGC 21 - Publication in refereed journal

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SN - 0002-7863

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JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

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ER -

Hydrazine Detection during Ammonia Electro-oxidation Using an Aggregation-Induced Emission Dye

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CRF: Aggregation-Induced Emission (AIE): Development of New AIE Systems and Exploration of Their Biomedical Applications

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Hydrazine Detection during Ammonia Electro-oxidation Using an Aggregation-Induced Emission Dye

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CRF: Aggregation-Induced Emission (AIE): Development of New AIE Systems and Exploration of Their Biomedical Applications

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