Reaction and Diffusion Paths of Water and Hydrogen on Rh Covered Black Titania

Szenti, Imre; Bugyi, László

doi:10.1007/s11244-018-0990-6

Cited by 2 publications

(3 citation statements)

References 41 publications

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“…studied the HER on oxygen vacancy‐rich (

v_{O}

‐rich) and oxygen vacancy‐deficient (

v_{O}

‐deficient) TiO 2 support deposited with Pt nanoclusters. Last but not least, other precious metals that have been deposited on black titania include Rh for HER (by a sputtering method proposed by Szenti et al [43] [44] …”

Section: Introductionmentioning

confidence: 99%

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Galvanic Deposition of Pt Nanoparticles on Black TiO₂ Nanotubes for Hydrogen Evolving Cathodes

et al. 2021

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A galvanic deposition method for the in‐situ formation of Pt nanoparticles (NPs) on top and inner surfaces of high‐aspect‐ratio black TiO2‐nanotube electrodes (bTNTs) for true utilization of their total surface area has been developed. Density functional theory calculations indicated that the deposition of Pt NPs was favored on bTNTs with a preferred [004] orientation and a deposition mechanism occurring via oxygen vacancies, where electrons were localized. High‐resolution transmission electron microscopy images revealed a graded deposition of Pt NPs with an average diameter of around 2.5 nm along the complete nanotube axis (length/pore diameter of 130 : 1). Hydrogen evolution reaction (HER) studies in acidic electrolytes showed comparable results to bulk Pt (per geometric area) and Pt/C commercial catalysts (per mg of Pt). The presented novel HER cathodes of minimal engineering and low noble metal loadings (μg cm−2 range) achieved low Tafel slopes (30–34 mV dec−1) and high stability in acidic conditions. This study provides important insights for the in‐situ formation and deposition of NPs in high‐aspect‐ratio structures for energy applications.

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“…studied the HER on oxygen vacancy‐rich (

v_{O}

‐rich) and oxygen vacancy‐deficient (

v_{O}

Section: Introductionmentioning

confidence: 99%

“…Last but not least, other precious metals that have been deposited on black titania include Rh for HER (by a sputtering method proposed by Szenti et al. [43] ) and Pd for ORR (on Al reduced‐TiO 2‐ x nanobelts via the borohydride method proposed by Yuan et al. [44] ).…”

Section: Introductionmentioning

confidence: 99%

Galvanic Deposition of Pt Nanoparticles on Black TiO₂ Nanotubes for Hydrogen Evolving Cathodes

et al. 2021

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show abstract

“…Recently, Wang et al [41] photo-deposited Pt on black TiO 2 powder for H 2 evolution, and Wei et al [42] studied the HER on oxygen vacancy-rich (v O -rich) and oxygen vacancydeficient (v O -deficient) TiO 2 support deposited with Pt nanoclusters. Last but not least, other precious metals that have been deposited on black titania include Rh for HER (by a sputtering method proposed by Szenti et al [43] ) and Pd for ORR (on Al reduced-TiO 2-x nanobelts via the borohydride method proposed by Yuan et al [44] ).…”

Section: Introductionmentioning

confidence: 99%

Cover Feature: Galvanic Deposition of Pt Nanoparticles on Black TiO₂ Nanotubes for Hydrogen Evolving Cathodes (ChemSusChem 22/2021)

et al. 2021

View full text Add to dashboard Cite

A galvanic deposition method for the in-situ formation of Pt nanoparticles (NPs) on top and inner surfaces of high-aspectratio black TiO 2 -nanotube electrodes (bTNTs) for true utilization of their total surface area has been developed. Density functional theory calculations indicated that the deposition of Pt NPs was favored on bTNTs with a preferred [004] orientation and a deposition mechanism occurring via oxygen vacancies, where electrons were localized. High-resolution transmission electron microscopy images revealed a graded deposition of Pt NPs with an average diameter of around 2.5 nm along the complete nanotube axis (length/pore diameter of 130 : 1). Hydrogen evolution reaction (HER) studies in acidic electrolytes showed comparable results to bulk Pt (per geometric area) and Pt/C commercial catalysts (per mg of Pt). The presented novel HER cathodes of minimal engineering and low noble metal loadings (μg cm À 2 range) achieved low Tafel slopes (30-34 mV dec À 1 ) and high stability in acidic conditions. This study provides important insights for the in-situ formation and deposition of NPs in high-aspect-ratio structures for energy applications.

show abstract

Reaction and Diffusion Paths of Water and Hydrogen on Rh Covered Black Titania

Cited by 2 publications

References 41 publications

Galvanic Deposition of Pt Nanoparticles on Black TiO₂ Nanotubes for Hydrogen Evolving Cathodes

Galvanic Deposition of Pt Nanoparticles on Black TiO₂ Nanotubes for Hydrogen Evolving Cathodes

Cover Feature: Galvanic Deposition of Pt Nanoparticles on Black TiO₂ Nanotubes for Hydrogen Evolving Cathodes (ChemSusChem 22/2021)

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Reaction and Diffusion Paths of Water and Hydrogen on Rh Covered Black Titania

Cited by 2 publications

References 41 publications

Galvanic Deposition of Pt Nanoparticles on Black TiO2 Nanotubes for Hydrogen Evolving Cathodes

Galvanic Deposition of Pt Nanoparticles on Black TiO2 Nanotubes for Hydrogen Evolving Cathodes

Cover Feature: Galvanic Deposition of Pt Nanoparticles on Black TiO2 Nanotubes for Hydrogen Evolving Cathodes (ChemSusChem 22/2021)

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Product

Resources

About

Galvanic Deposition of Pt Nanoparticles on Black TiO₂ Nanotubes for Hydrogen Evolving Cathodes

Galvanic Deposition of Pt Nanoparticles on Black TiO₂ Nanotubes for Hydrogen Evolving Cathodes

Cover Feature: Galvanic Deposition of Pt Nanoparticles on Black TiO₂ Nanotubes for Hydrogen Evolving Cathodes (ChemSusChem 22/2021)