Journal
ULTRASONICS SONOCHEMISTRY
Volume 42, Issue -, Pages 659-664Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ultsonch.2017.12.034
Keywords
Selectivity; XPS; TEM; H2O2 sensor; LOD; Sensitivity
Categories
Funding
- Ministry of Science and Technology, Taiwan [MOST 103-2221-E-151-054-MY3, MOST 106-2221-E-151-039-MY3]
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Nitrogen-doped graphene nanosheet (N-SEGN) with pyrrolic nitrogen and 5-9 vacancy defects has been successfully prepared from a hydrothermal reaction of tetra-2-pyridinylpyrazine and sonoelectrochemistry-exfoliated graphene nanosheet, with point defects. Additionally, based on the same reaction using chemically reduced graphene oxide, nitrogen-doped chemically reduced graphene oxide (N-rGO) with graphitic nitrogen was prepared. The N-SEGN and N-rGO were used as a non-enzymatic H2O2 sensors. The sensitivity of the N-SEGN was 231.3 mu A.mM(-1).cm(-2), much greater than 57.3 mu A.mM(-1).cm-2 of N-rGO. The N-SEGN showed their potential for being a H2O2 sensor.
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