Effects of nickel doping on the preferred orientation and oxidation potential of Ti/Sb SnO2 anodes prepared by spray pyrolysis

Abstract

Nickel and antimony co-doped Ti/SnO 2 (Ti/Ni-Sb-SnO 2 ) anodes were prepared by spray pyrolysis. Effects of nickel concentration on the structure and onset potential for oxygen evolution of Ti/Ni-Sb-SnO 2 anodes have been systematically investigated.XRD analyses suggest that SnO 2 thin films grow in preferential orientation along (101) plane as the nickel concentration increases. The enhanced onset potential of oxygen is above 2.4 V vs NHE due to the introduction of nickel doping, and increases slightly with the nickel concentration. The calculated results show that work function of Ni/Sb co-doped SnO 2 also increases with the Ni doping level, which contributes to the enhancement of onset potential for oxygen evolution.

Preparation and Recent Developments of Ti/SnO2-Sb Electrodes

“…Until now, many literatures have reported SnO 2 film prepared via ultrasonic spray pyrolysis [23][24][25][26][27]. Chen et al [25] fabricated Ti/SnO 2 -Sb electrode with different nickel concentrations by a spray pyrolysis technique. e nickel and antimony co-doped Ti/SnO 2 anodes showed different structures and onset potential for oxygen evolution.…”

Fabrication and Characterization of Pt doped Ti/Sb-SnO2 Electrode and its Efficient Electro-Catalytic Activity toward Phenol

“…Therefore, a great deal of efforts, such as ion doping, intermediate layer insertion and modification of Ti substrate, have been devoted to surmounting this weakness. [23][24][25][26][27][28][29][30][31][32][33][34][35][36] Remarkably, the ions doping (co-doped X-Sb-SnO2 electrodes, X represents Mn, Au, Pt, Ni, rare earth and so on) are one expected and effective strategy. A series of studies on the Ti/X-Sb-SnO2 electrodes have been carried out.…”

“…A series of studies on the Ti/X-Sb-SnO2 electrodes have been carried out. [9,28,[33][34][35][37][38][39][40][41][42][43] In recent years, our group has also conducted studies on different metal ion doping. These metals can not only effectively change the concentration of oxygen vacancies in the SnO2 crystal lattice, but also influence the electro-catalytic performance of electrodes.…”

Novel dual heterojunction between MoS2 and anatase TiO2 with coexposed {101} and {001} facets

“…There are some methods to improve the photocatalytic activity. Thus, TiO 2 was always composited with other semiconductors to construct heterojunction for improved quantum efficiency . Common composite was executed on the {101} facets of anatase TiO 2 .…”