Non-enzymatic hydrogen peroxide sensor based on a gold electrode modified with granular cuprous oxide nanowires

Carbon quantum dots/octahedral Cu2O nanocomposites for non-enzymatic glucose and hydrogen peroxide amperometric sensor

“…Cuprous oxide (Cu 2 O), as a p-type semiconductor with direct band gap of 2.17 eV, possesses wide applications in various fields [12,13], such as photochemical catalysis [14], biosensing [15], gas sensor [16,17], electrochemical sensing [18][19][20] and solar/photovoltaic energy conversion [21]. The extensive applications of Cu 2 O attributed to its unique optical and electrical properties, handy synthesis method, low cost, and low toxicity [22].…”

Electrochemical hydrogen peroxide sensors based on electrospun La0.7Sr0.3Mn0.75Co0.25O3 nanofiber modified electrodes

“…The amperometric response of the sensor was measured by amperometry (Fig. [37][38][39][40][41] These results show that the LSMCO/CPE sensor has a wider linear range and a higher sensitivity. With the successive addition of H 2 O 2 to a continuously stirred NaOH solution, the sensor had a rapid response to the charge of the H 2 O 2 concentration and reached the steady-state within 5 s. The linear regression equation of current response with the H 2 O 2 concentration is I (mA) ¼ 0.037 + 0.0969c (mM) (R ¼ 0.998) with a wide linear response range from 0.5 to 1000 mM.…”

Synthesis of an ordered nanoporous Fe2O3/Au film for application in ascorbic acid detection

“…29,30 In this work, the anodization was carried out at 50 V for 6 h in 0.3 mol/L oxalic acid electrolyte. 29,30 In this work, the anodization was carried out at 50 V for 6 h in 0.3 mol/L oxalic acid electrolyte.…”

“…Among them, electrochemical methods are considered to be one of the most potential approaches because of its ease of monitoring, high sensitivity and simplicity. 13 Fe 2 O 3 is an important oxide material, which is eco-friendly, non-toxic, heat-resistant and corrosion-resistant, and widely used in the field of photocatalyst, solar cells, lithium ion battery, gas sensors and field emission devices. 11,12 Therefore, the development of non-enzymatic AA sensors with low detection limit and wide responding range is desired.…”