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Phase and Shape Dependent Non–enzymatic Glucose Sensing Properties of Nickel Molybdate
Author(s) -
Naik Kusha Kumar,
Ratha Satyajit,
Rout Chandra Sekhar
Publication year - 2016
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201600795
Subject(s) - molybdate , materials science , nickel , nanoparticle , nanomaterials , phase (matter) , urea , electrochemistry , chemical engineering , nanotechnology , chemistry , metallurgy , biochemistry , electrode , organic chemistry , engineering
In this work, we demonstrate a facile low temperature synthesis approach to tune α and β‐NiMoO 4 by controlling the urea concentration. Comparative non‐enzymatic electrochemical glucose sensing properties of NiMoO 4 nanomaterials with α and β phases have been studied in detail. The mechanisms related to the phase and morphology transformation from α‐NiMoO 4 nanoparticles to β‐NiMoO 4 nanosheets are proposed and discussed by thoroughly characterizing the as‐prepared materials. It is observed that the α‐NiMoO 4 exhibits sensitivity of 0.208 μAμM −1 cm −2 whereas sensitivity of 1.057 μAμM −1 cm −2 is achieved for the β‐NiMoO 4 . Thus, it is confirmed that β‐ NiMoO 4 nanosheets perform five times high glucose sensing performance as compared to the α‐NiMoO 4 nanoparticles and demonstrates its application as high‐performance glucose sensor.