TY - JOUR
T1 - Gd doped molybdenum selenide/carbon nanofibers
T2 - An excellent electrocatalyst for monitoring endogenous H2S
AU - Jeromiyas, Nithiya
AU - Lin, Chun Mao
AU - Yu-Chieh, Lee
AU - Chen, Ching Hui
AU - Mani, Veerappan
AU - Arumugam, Rameshkumar
AU - Huang, Sheng Tung
N1 - Funding Information:
This work is supported by the Ministry of Science and Technology (108-2221-E-027-063–), Taiwan.
Publisher Copyright:
© the Partner Organisations.
PY - 2021/6/7
Y1 - 2021/6/7
N2 - In recent years, transition metal dichalcogenides have become increasingly popular in electrochemical sensors due to their excellent redox properties. Herein, a highly efficient electrocatalyst Gd3+ doped molybdenum selenide with carbon nanofibers (Gd-MoSe2/CNF) is synthesized for electrocatalytic sensing of H2S. The synthesis involves a facile and quick hydrothermal treatment. The morphological, elemental, electrochemically active surface area, and impedance properties were investigated to understand its sensing capability. Gd-MoSe2/CNF showed excellent electrocatalytic ability to oxidize H2S. The overpotential for oxidation was minimized to +0.10 V, Ag/AgCl, and the response current increased two-fold compared to control electrodes. High sensitivity, acceptable selectivity, robustness and appreciable reproducibility were observed. The linear range was 12.5 nM-1.2 mM and the detection limit was 1 nM. The method was successful in tracking H2S secreted by HeLa cells. Our reports suggest that Gd-MoSe2/CNF is a useful material in monitoring endogenous H2S. This journal is
AB - In recent years, transition metal dichalcogenides have become increasingly popular in electrochemical sensors due to their excellent redox properties. Herein, a highly efficient electrocatalyst Gd3+ doped molybdenum selenide with carbon nanofibers (Gd-MoSe2/CNF) is synthesized for electrocatalytic sensing of H2S. The synthesis involves a facile and quick hydrothermal treatment. The morphological, elemental, electrochemically active surface area, and impedance properties were investigated to understand its sensing capability. Gd-MoSe2/CNF showed excellent electrocatalytic ability to oxidize H2S. The overpotential for oxidation was minimized to +0.10 V, Ag/AgCl, and the response current increased two-fold compared to control electrodes. High sensitivity, acceptable selectivity, robustness and appreciable reproducibility were observed. The linear range was 12.5 nM-1.2 mM and the detection limit was 1 nM. The method was successful in tracking H2S secreted by HeLa cells. Our reports suggest that Gd-MoSe2/CNF is a useful material in monitoring endogenous H2S. This journal is
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U2 - 10.1039/d1qi00045d
DO - 10.1039/d1qi00045d
M3 - Article
AN - SCOPUS:85107401266
SN - 2052-1545
VL - 8
SP - 2871
EP - 2879
JO - Inorganic Chemistry Frontiers
JF - Inorganic Chemistry Frontiers
IS - 11
ER -