Plasmonic hot carrier-driven oxygen evolution reaction on Au nanoparticles/TiO₂ nanotube arrays

Abstract

Enhancement of the photocatalytic activity of water splitting on 5–30 nm Au nanoparticles/TiO2 nanotube arrays was demonstrated.

Plasmon-enabled N2 photofixation on partially reduced Ti3C2 MXene

“…The generated O 2 should result from the oxidization of H 2 O by the hot holes in the Au nanospheres. 54 Its amount is about three fourths that of NH 4 + (Fig. S12b † ), close to the stoichiometric ratio of 3 : 4 according to the reaction N 2 + 3H 2 O → 2NH 3 + 1.5O 2 , proving that NH 3 is generated by coupling the activated N 2 with the protons from H 2 O.…”

Enhanced OER Performances of Au@NiCo2S4 Core-Shell Heterostructure

“…The Au 4f XPS spectrum of the Au@NiCo2S4 is shown in Figure S5b. ; the fitting peaks positioned at 84.16 eV and 87.81 eV are assigned to metallic Au, and the peaks at 85.19 eV and 88.74 eV can be assigned to Au + [41]. These results indicate that Ni and Co atoms possess multi-valence in the bimetallic sulfides.…”

Rational design for gold nanoparticle-based plasmonic catalysts and electrodes for water oxidation towards artificial photosynthesis

“…Park and co-workers prepared an Au(d Au = 5, 15, 30 nm)/ TiO 2 -nanotube array (NTA, diameter ≈ 100 nm, length ≈ 1 μm), and measured the photocurrents corresponding to OER for three-electrode PEC cells using the electrodes in 1 M KOH electrolyte solution under visible-light irradiation (λ ex > 415 nm). 50 The photocurrent and the rate of OER were shown to increase with a decrease in the Au particle size (Fig. 9a and b).…”