Flame synthesis of NiO nanoparticles on carbon cloth: An efficient non-enzymatic sensor for glucose and formaldehyde

Flame synthesis is one of the important methods for the synthesis of nanomaterials. In this work, NiO nanoparticles on carbon cloth (NiO/CC) were synthesized via a flame method, and the synthesized NiO/CC was used as a non-enzymatic sensor for the detection of glucose and formaldehyde. NiO/CC shows an excellent analytical performance for glucose sensing with a satisfactory reproducibility and selectivity, providing a response time as short as 3 s, a wide detection ranging from 5 μM to 2 mM, a LOD with 7.45 nM (S/N = 3), and a sensitive response with 4025 μA mM−1cm−2. Furthermore, the sensor also has a sensitive response to formaldehyde, a LOD of 6.8 nM (S/N = 3), a sensitivity of 5752 μA mM−1cm−2 and a response time of 3 s were obtained.