A comparison of nitrogen-doped sonoelectrochemical and chemical graphene nanosheets as hydrogen peroxide sensors

作者：Wu Yi Shan; Liu Zhe Ting; Wang Tzu Pei; Hsu Su Yang; Lee Chien Liang

来源：Ultrasonics Sonochemistry, 2018, 42: 659-664.

DOI：10.1016/j.ultsonch.2017.12.034

• Selectivity
• XPS
• TEM
• H2O2 sensor
• LOD
• Sensitivity

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.

• 出版日期2018-4