Deposition efficiency in the preparation of ozone-producing nickel and antimony doped tin oxide anodes

Sandin, Staffan; Cheritat, Alicia; Bäckström, Joakim; Cornell, Ann

doi:10.5599/jese.374

Cited by 8 publications

(11 citation statements)

References 33 publications

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“…To determine if catalyst morphology could explain the trend in selectivity, 13 we characterized the roughness factor using electrochemical capacitance measurements. Capacitance was calculated from CV at variable sweep rates (Equation ).

\begin{matrix} true \\ C = I {((), \frac{italicdV}{italicdt})}^{- 1} . \end{matrix}

…”

Section: Resultsmentioning

confidence: 99%

“…Etched substrates were washed and sonicated with Millipore water, dried, and stored under argon until use. A catalyst precursor solution of metal chlorides and nitrates in pure ethanol was prepared based on high performance electrodes of a similar composition by Wang, Christensen, and Sandin 11,13,15 . The precursor mole ratio of (Gd: Ni: Sb: Sn) was ( x : (1‐ x ): 8: 500) where values of x = [1, 0.8, 0.5, 0.2, 0].…”

Section: Methodsmentioning

confidence: 99%

“…11 Subsequent literature has confirmed the enhanced activity and selectivity of Ni-Sb-SnO 2 as a metal oxide catalyst for EOP in acidic solution. [11][12][13][14][15] The significance of the role of dopants in SnO 2 catalysts for EOP cannot be understated. Activity for EOP is entirely absent in Sb-SnO 2 .…”

Section: Introductionmentioning

confidence: 99%

“…Wang et al first reported an ozone current efficiency of approximately 30% utilizing nickel and antimony doped tin oxide (Ni‐Sb‐SnO 2 ) on titanium substrates 11 . Subsequent literature has confirmed the enhanced activity and selectivity of Ni‐Sb‐SnO 2 as a metal oxide catalyst for EOP in acidic solution 11–15 …”

Section: Introductionmentioning

confidence: 99%

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Gd‐Ni‐Sb‐SnO₂ electrocatalysts for active and selective ozone production

et al. 2021

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Direct electrochemical production of dissolved ozone could potentially provide economic wastewater treatment and sanitation or a valuable chemical oxidant. Although Ni‐Sb‐SnO2 electrocatalysts have the highest known faradaic efficiencies for electrochemical ozone production, the activity and selectivity are not yet sufficient for commercial implementation. This work finds that co‐doping Ni and Gd increases the ozone selectivity by a factor of three over Ni alone. These findings are the first demonstration of an active dopant other than Ni in SnO2. Electrochemical and physical characterization show that trends in ozone activity are caused by chemical catalysis, not morphology effects, and that conduction band alignment is not a catalytic descriptor for the system. Selective radical quenching experiments and quantum chemistry calculations of thermodynamic energies suggest that the kinetic barriers to form solution‐phase intermediates are important for understanding the role of dopants in electrochemical ozone production.

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\begin{matrix} true \\ C = I {((), \frac{italicdV}{italicdt})}^{- 1} . \end{matrix}

…”

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Gd‐Ni‐Sb‐SnO₂ electrocatalysts for active and selective ozone production

et al. 2021

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“…39,42,46,47 However, it is important to note that we observed that if too much SnCl 4 is added to the mixture containing WCl 6 and F-127 in ethanol, this has a deleterious effect by reducing the solubility of F-127 and leads to incomplete dissolution. [48][49][50] To investigate the elemental content of the modified GFs, energy dispersive X-ray spectroscopy (EDX) was used. Figure 4A presents the EDX spectrum of the portion of as-received GF.…”

Section: Physicochemical Characterization Analysismentioning

confidence: 99%

Graphite felt modified withWO₃,SnO₂,and binaryWO₃/SnO₂‐mixtures as novel positive electrodes for cerium‐based redox flow batteries

Bingah¹,

Pritzker

2021

Intl J of Energy Research

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Cerium-based redox flow batteries (RFBs) such as Zn-Ce and V-Ce have received attention as attractive energy storage systems due to their high opencircuit cell voltages. To date, the most successful Ce-based RFBs have relied on expensive Pt-based positive electrodes. In this study, the use of more economical polyacrylonitrile (PAN)-based graphite felt (GF) containing tungsten oxide (WO 3 ) and/or tin oxide (SnO 2 ) nanocatalysts is examined for its electrochemical activity for the Ce(III)/Ce(IV) redox reaction in a series of half-cell experiments. Cyclic voltammetry is carried out at room temperature in a 0.05 M Ce(III) methanesulfonate +1.0 M methanesulfonic acid (MSA) electrolyte using a custom-made three-electrode cell. Among all modified GFs, those coated with a binary WO 3 -SnO 2 mixture have exhibited superior electrocatalytic activity toward the Ce(III)/Ce(IV) reaction compared to the ones decorated with single oxides WO 3 or SnO 2 . Presumably, this can be ascribed to the involvement of both metal oxides (WO 3 and SnO 2 ) in promoting electrolyte accessibility and improving the hydrophilicity of GF electrodes. SEM images indicate that the combination of WO 3 and SnO 2 promotes a more homogeneous dispersion over the graphite fiber surface and prevents clustering of the oxide particles that is more evident in the case of the single metal oxide catalysts.

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Nanostructured BaTi1-xSnxO3 ferroelectric materials for electrocaloric applications and energy performance

Benyoussef¹,

Mura²,

Saitzek³

et al. 2022

Current Applied Physics

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Deposition efficiency in the preparation of ozone-producing nickel and antimony doped tin oxide anodes

Abstract: The influence of precursor salts in the synthesis of nickel and antimony doped tin oxide (NATO)

Cited by 8 publications

References 33 publications

Gd‐Ni‐Sb‐SnO₂ electrocatalysts for active and selective ozone production

Gd‐Ni‐Sb‐SnO₂ electrocatalysts for active and selective ozone production

Graphite felt modified withWO₃,SnO₂,and binaryWO₃/SnO₂‐mixtures as novel positive electrodes for cerium‐based redox flow batteries

Nanostructured BaTi1-xSnxO3 ferroelectric materials for electrocaloric applications and energy performance

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Deposition efficiency in the preparation of ozone-producing nickel and antimony doped tin oxide anodes

Abstract: The influence of precursor salts in the synthesis of nickel and antimony doped tin oxide (NATO)

Cited by 8 publications

References 33 publications

Gd‐Ni‐Sb‐SnO2 electrocatalysts for active and selective ozone production

Gd‐Ni‐Sb‐SnO2 electrocatalysts for active and selective ozone production

Graphite felt modified withWO3,SnO2,and binaryWO3/SnO2‐mixtures as novel positive electrodes for cerium‐based redox flow batteries

Nanostructured BaTi1-xSnxO3 ferroelectric materials for electrocaloric applications and energy performance

Contact Info

Product

Resources

About

Gd‐Ni‐Sb‐SnO₂ electrocatalysts for active and selective ozone production

Gd‐Ni‐Sb‐SnO₂ electrocatalysts for active and selective ozone production

Graphite felt modified withWO₃,SnO₂,and binaryWO₃/SnO₂‐mixtures as novel positive electrodes for cerium‐based redox flow batteries