2017
DOI: 10.1039/c6cp06906a
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Insights into the mechanism of electrochemical ozone production via water splitting on the Ni and Sb doped SnO2 catalyst

Abstract: This is an Accepted Manuscript, which has been through the Royal Society of Chemistry peer review process and has been accepted for publication.Accepted Manuscripts are published online shortly after acceptance, before technical editing, formatting and proof reading. Using this free service, authors can make their results available to the community, in citable form, before we publish the edited article. We will replace this Accepted Manuscript with the edited and formatted Advance Article as soon as it is avai… Show more

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Cited by 27 publications
(29 citation statements)
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“…EDS qualitatively indicated the presence of Sn, O, and Sb, but Ni and Gd concentrations were not detectable. Previous literature has reported that Ni content in active catalysts is typically lower than detection limits of standard instruments, consistent with our results 17. Baseline-corrected XRD patterns are provided in Figure 2 along with reference markers for cassiterite SnO 2 (JCPDS no 01-077-0451).…”
supporting
confidence: 90%
See 1 more Smart Citation
“…EDS qualitatively indicated the presence of Sn, O, and Sb, but Ni and Gd concentrations were not detectable. Previous literature has reported that Ni content in active catalysts is typically lower than detection limits of standard instruments, consistent with our results 17. Baseline-corrected XRD patterns are provided in Figure 2 along with reference markers for cassiterite SnO 2 (JCPDS no 01-077-0451).…”
supporting
confidence: 90%
“…Alternatively, Gibson et al produced a DFT model of a Langmuir–Hinshelwood surface reaction on the (110) facet of Ni‐Sb‐SnO 2. 17 Gibson's model and Christensen's experimental conclusions are in agreement regarding the role of surface Sb(III), oxygen vacancies, and intermediate hydroxyl reaction species. Gibson's model, however, relies on the assumption that Ni is present on the catalyst surface layer, although this assumption contradicts the experimental findings of Christensen and other investigators.…”
Section: Introductionsupporting
confidence: 73%
“…3 The OH* and O* occupy the active sites spontaneously when DG intersects the x-axis (DG ¼ 0). For NSS, OH* and O* could be generated at potentials above 1.70 and 1.62 V RHE , whereas at least 1.65 and 1.86 V RHE were required for NSS/SiO This work considered the potential parallel pathways of O 2 * formation, i.e., a binuclear mechanism (eqn ( 8)-( 10)) 3,5,24 and a four-step associative mechanism (consecutive equations of eqn ( 8), ( 9), ( 12) and ( 13)). 10,55,56 Regarding the latter pathway, a free-energy diagram (Fig.…”
Section: Dft Calculation For Nss/sio Xmentioning
confidence: 99%
“…4 The electrochemical ozone evolution reaction (OZER) via the 6e-WOR exhibits several advantages over the traditional cold corona discharge (CCD) method, which is the current best method for O 3 generation, with respect to (i) no necessity of pure O 2 gas and a high voltage, (ii) simple equipment, and (iii) a high O 3 concentration achieved in the aqueous phase. 5 To date, boron-doped diamonds (BDDs), 6 PbO 2 , 7,8 and Ni-Sbdoped SnO 2 (NSS) 3,9 have been explored as OZER anodes. However, their low current efficiencies (CEs) limit practical deployment.…”
Section: Introductionmentioning
confidence: 99%
“…The mechanism of ozone generation at Ti modified with tin, antimony and nickel oxides catalyst was studied and suggested by Gibson et al [69] including the splitting of water to form oxygen and ultimately ozone through the interaction of oxygen and surface atomic oxygen. The electrochemical ozone generatied by bare Ti and modified Ti was measured with well known indigo method using potassium indigotrisulphonate based on the changes in light intensity absorbance of the ozone scavenger in electrolyte solution before and after electrolysis in presence of the electrodes [68,70].…”
Section: Ozone Generation and Measurementmentioning
confidence: 99%