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Size‐Selective Silver‐Induced Evolution of Mn 3 O 4 −Ag Nanocomposites for Effective Ethanol Sensing
Author(s) -
Rahaman Hasimur,
Kundu Susmita,
Ghosh Sujit Kumar
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201700321
Subject(s) - nanocomposite , manganese , ethanol , heptane , manganese oxide , silver nanoparticle , nanoparticle , materials science , chemical engineering , oxide , nuclear chemistry , hydrolysis , inorganic chemistry , chemistry , nanotechnology , organic chemistry , metallurgy , engineering
Trimanganese tetraoxide (Mn 3 O 4 )−silver (Ag) nanocomposites have been synthesized by seed‐mediated growth of manganese oxide by alkaline hydrolysis of manganese precursor on preformed silver nanoparticles at water/n‐heptane interface. The morphology of the nanocomposites has been varied by individual addition of five size‐selective silver nanoparticles for the evolution of the manganese components. Varieties of spectroscopic and microscopic techniques have been used to characterize these materials. Now, the efficacy of these as‐synthesized nanocomposites has been demonstrated towards the sensing of various hazardous volatile organic compounds, exhibiting high sensitivity to ethanol compared to other components. Moreover, the structure‐function relationship of the Mn 3 O 4 −Ag nanocomposites upon variation of the size of silver particles towards the sensory activity of ethanol has been elucidated.