Electrochemically Modified Poly(dicyandiamide) Electrodes for Detecting Hydrazine in Neutral pH

Gopinathan Manavalan; Thiyagarajan Natarajan; Kayode Omotayo Adeniyi; Jyh Myng Zen; Solomon Tesfalidet; Mikael Thyrel; Torbjörn A. Lestander; Subba Reddy Alla; Jyri Pekka Mikkola

doi:10.1021/acs.iecr.3c02669

Electrochemically Modified Poly(dicyandiamide) Electrodes for Detecting Hydrazine in Neutral pH

Gopinathan Manavalan^*
, Thiyagarajan Natarajan
, Kayode Omotayo Adeniyi
, Jyh Myng Zen
, Solomon Tesfalidet
, Mikael Thyrel
, Torbjörn A. Lestander
, Subba Reddy Alla
, Jyri Pekka Mikkola

^*Korresponderande författare för detta arbete

Teknisk kemi och reaktionsteknik

Forskningsoutput: Tidskriftsbidrag › Artikel › Vetenskaplig › Peer review

1 Citeringar (Scopus)

97 Nedladdningar (Pure)

Sammanfattning

A new technique for sensing nanomolar concentrations of hydrazine in water samples is reported. A screen-printed carbon electrode (SPCE) altered using an amine-azo functional group encompassing poly(dicyandiamide) is used in this study. The modified electrode exhibits an enhanced activity toward hydrazine detection at a lower overpotential and broad linear scale between 20 nM and 1 mM, with an accurate sensitivity value of 0.1 nA μm^-1 cm^-2. To the best of our knowledge, poly(dicyandiamide)-modified electrodes exhibit one of the lowest limits of detection for any metal-free electrode that detects 6.7 nM (S/N = 3) of hydrazine. The method established sufficient selectivity and better recoveries. Finally, the poly(dicyandiamide)-modified SPCE* is highly suitable for electrochemical determination of hydrazine in water samples from tap and lake.

Originalspråk	Engelska
Sidor (från-till)	18271-18279
Antal sidor	9
Tidskrift	Industrial and Engineering Chemistry Research
Volym	62
Nummer	44
DOI	https://doi.org/10.1021/acs.iecr.3c02669
Status	Publicerad - 8 nov. 2023
MoE-publikationstyp	A1 Tidskriftsartikel-refererad

Finansiering

The authors thankfully acknowledge the funding provided by the Bio4Energy programme, Kempe Foundations [JCK-JCK-2140 and JCSMK23-0075], Wallenberg Wood Science Center under auspices of Alice and Knut Wallenberg Foundation, and the Ministry of Science and Technology, Taiwan. The authors conducted experiments at the Technical Chemistry, Department of Chemistry, Chemical-Biological Centre, Umeå University, Sweden, and also at the Johan Gadolin Process Chemistry Centre at Åbo Akademi University in Finland. In this work, the authors particularly wish to honor the late Carl Kempe of Kempe Foundations who for so many years has supported them: rest in peace. They also acknowledge Dr. Shamasree Ghosh and Dr. Tamilselvi Shanmugam for their help with AFM. Additionally, this article represents a considerable portion of Gopinathan Manavalan’s doctoral research conducted at National Chung Hsing University, Taiwan.

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10.1021/acs.iecr.3c02669

manavalan-et-al-2023-electrochemically-modified-poly(dicyandiamide)-electrodes-for-detecting-hydrazine-in-neutral-phSlutlig publicerad version, 4,86 MBLicens: CC BY

https://urn.fi/URN:NBN:fi-fe202401041315

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title = "Electrochemically Modified Poly(dicyandiamide) Electrodes for Detecting Hydrazine in Neutral pH",

abstract = "A new technique for sensing nanomolar concentrations of hydrazine in water samples is reported. A screen-printed carbon electrode (SPCE) altered using an amine-azo functional group encompassing poly(dicyandiamide) is used in this study. The modified electrode exhibits an enhanced activity toward hydrazine detection at a lower overpotential and broad linear scale between 20 nM and 1 mM, with an accurate sensitivity value of 0.1 nA μm-1 cm-2. To the best of our knowledge, poly(dicyandiamide)-modified electrodes exhibit one of the lowest limits of detection for any metal-free electrode that detects 6.7 nM (S/N = 3) of hydrazine. The method established sufficient selectivity and better recoveries. Finally, the poly(dicyandiamide)-modified SPCE* is highly suitable for electrochemical determination of hydrazine in water samples from tap and lake.",

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AU - Manavalan, Gopinathan

AU - Natarajan, Thiyagarajan

AU - Adeniyi, Kayode Omotayo

AU - Zen, Jyh Myng

AU - Tesfalidet, Solomon

AU - Thyrel, Mikael

AU - Lestander, Torbjörn A.

AU - Alla, Subba Reddy

AU - Mikkola, Jyri Pekka

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Electrochemically Modified Poly(dicyandiamide) Electrodes for Detecting Hydrazine in Neutral pH

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