Comparison of the Properties of Low-Dimensional Nano-Ti/SnO₂-Sb-Fe Electrodes Prepared by Different Methods

Abstract

Ti/SnO 2 -Sb-Fe electrodes have been prepared by a novel precipitation printing method, the traditional sol-gel method, and the direct current deposition method. The microstructure of the electrodes was systematically characterized through X-ray diffraction (XRD) observation and high-resolution transmission electron microscopy (HRTEM) verification. In addition, the morphology was characterized by scanning electron microscopy (SEM), while the electrochemical properties and the stability were further investigated by cyclic voltammetry (CV), linear sweep voltammetry (LSV), electrochemical impedance spectroscopy (EIS), and accelerated life testing. The results indicate that the Ti/SnO 2 -Sb-Fe electrode prepared by precipitation printing has the smallest nanoparticle structure (< 10 nm), a higher electrochemical porosity (49.6%), and a higher oxygen evolution potential (2.20 V). As a comparison, the Ti/SnO 2 -Sb-Fe electrode prepared by the sol-gel method has the longest service life. To further evaluate the electrocatalytic activity of the Ti/SnO 2 -Sb-Fe electrodes, Acid Red 73 was employed as simulated sewage for electrochemical degradation. After 180 min, the removal efficiency of AR 73 reached 86.8%, 63.4%, and 74%, respectively, for Ti/SnO 2 -Sb-Fe electrodes prepared by precipitation printing method, traditional sol-gel method, and direct current deposition method. Furthermore, the degradation of AR 73 followed pseudo-first-order kinetics.

Preparation of a SnO2–Sb electrode on a novel TiO2 network structure with long service lifetime for degradation of dye wastewater

“…15,16 ) and non-rare earth metal elements (Fe, Bi, Pd, etc. [17][18][19] ). Doping these elements can change the structure of the surface coating, thus enhancing the stability of the coating to some extent.…”

Characterization of a Ti/SnO2-Sb/Fe-PVP-PbO2 Electrode Deposited from Methanesulfonate Bath and Application in Electrocatalytic Degradation of MO

“…The electrocatalytic activity of PbO 2 anode deposited in methanesulfonate-based baths remains relatively unclear. [38][39][40] Moreover, the effect of surfactant on preparation and electrocatalytic activity of PbO 2 anode need further elaboration. The aim of the present study is to prepare highperformance Ti/PbO 2 anodes from methanesulfonate-based baths, and to investigate the effects of dopants such as Fe and polyvinylpyrrolidone (PVP) on the composition, morphology, stability and electrocatalytic activity of the anodes.…”

Algorithm for Assessing the Convergence of a Cyclic Voltammetry to Its Limit Cycle

“…However, in the decades of the 60s and the 70s, significant advances were made in the theory and the instrumentation of voltammetric methods, such as the development of low-cost operational amplifiers that enabled affordable potentiostats. 2 These advances boosted the practical applicability of voltammetric methods, leading to the actual situation where voltammetric methods are widely used in a large variety of fields, such as electrodeposition, 3 batteries, [4][5][6][7] fuel cells, 8,9 supercapacitors, 10,11 electrochemical advanced oxidation, [12][13][14] electrochemical sensors, [15][16][17][18] ionic liquids [19][20][21][22] and surfactants, 23 amongst many others.…”