Two-dimensional conductive phthalocyanine-based metal–organic frameworks for electrochemical nitrite sensing
Shun Lu, Hongxing Jia, Matthew Hummel, Yanan Wu, Keliang Wang, Xueqiang Qi, Zhengrong Gu
Abstract
2D nickel phthalocyanine based MOFs (NiPc-MOFs) with excellent conductivity were synthesized through a solvothermal approach. Benefiting from excellent conductivity and a large surface area, 2D NiPc-MOF nanosheets present excellent electrocatalytic activity for nitrite sensing, with an ultra-wide linear concentration from 0.01 mM to 11 500 mM and a low detection limit of 2.3 μM, better than most reported electrochemical nitrite sensors. Significantly, this work reports the synthesis of 2D conductive NiPc-MOFs and develops them as electrochemical biosensors for non-enzymatic nitrite determination for the first time.
Topics & Concepts
PhthalocyanineElectrochemistryNitriteConductivityDetection limitMaterials scienceMetal-organic frameworkElectrical conductorBiosensorMetalNickelNanotechnologyInorganic chemistryChemistryElectrodeOrganic chemistryPhysical chemistryMetallurgyChromatographyComposite materialNitrateAdsorptionElectrochemical sensors and biosensorsAdvanced Nanomaterials in CatalysisAdvanced biosensing and bioanalysis techniques