Facile synthesis of NFL-ZnWO4 for pseudocapacitor applications

Abstract

In this report, NFL-ZnWO4 was synthesized by a hydrothermal route and investigated for application in supercapacitors for the first time. The physical and chemical characterizations of the prepared nanomaterial were analyzed by SEM, EDS, XRD and XPS, respectively. Supercapacitors study of CV, GCD and EIS revealed that NFL-ZnWO4 exhibits good electrochemical properties. The high specific capacitance value of 107.7 F g-1 was achieved at 5 mV s−1. These findings demonstrated that ZnWO4 could be a promising electrode material candidate and highly desirable for application of high property supercapacitors in the future.

Fabrication of ZnWO4/Carbon Black Nanocomposites Modified Glassy Carbon Electrode for Enhanced Electrochemical Determination of Ciprofloxacin in Environmental Water Samples

“…The cubic point of the space group of ZnWO 4 /CB contains diffraction peaks at an angle of 2θ = 15.47°, 18.89°, 23.81°, 24.51°, 30.70°, 36.76°, 39.94°, 37.80°, 41.56°, 44.59°, 47.64°, 52.74°, 54.24°, 62.73°, 65.47°, 69.32°, 72.45° and 26.70° that corresponds to the (010), (100), (011), (110), (111), (120), (012), (102), (112), (030), (122), (020), (230), (023), (23) and (006) crystal planes, respectively (JCPDS-01-089-0447). These findings demonstrated that ZnWO 4 and CB diffraction peaks successfully appeared in the ZnWO 4 /CB composite composition without impurities, which confirms the formation of the ZnWO 4 /CB composite [ 37 ].…”

“…The relation between anodic peak current and scan rate is presented in Figure 7 C. Figure 7 D shows the linear regression equation is I pa (µA) = 0.1479 × (mVs −1 ) + 18.361 and the coefficient of ( R 2 = 0.9935). This finding implies that diffusion controls the electrocatalytic oxidation of CIP detected on the GCE/ZnWO 4 /CB surface [ 37 ].…”