TiO2 homojunction with Au nanoparticles decorating as an efficient and stable electrocatalyst for hydrogen evolution reaction

Effects of Oxygen Vacancies with Different Valence States on the Photo(electro)catalytic Performance of a 2D TiO2:N (001) System

“…When the hydrogen adsorption Δ G H * change value is close to 0, the HER catalytic performance of the catalyst is good . Li prepared a TiO 2 NBs@TiO 2 NS nanomaterial through the hydrothermal method and found that Δ G H * = 0.440 eV in HER, and the hydrogen adsorption free energy of 2D Ti 24 O 46 N (V o 0 ) and 2D Ti 24 O 46 N (V o 2+ ) nanomaterials is close to 0, which is conducive to the occurrence of HER. Notably, 2D Ti 24 O 46 N (V o 0 ) is favorable for HER.…”

Research Progress of TiO2 Modification and Photodegradation of Organic Pollutants

“…Although TiO 2 photocatalysis technology has many advantages in the degradation of pollutants in water, pure TiO 2 , with a band gap of 3.0~3.2 eV [22], can only be excited by ultraviolet light with a wavelength less than 387 nm and photogenerated electronhole pairs are easy to recombine, resulting in low photo quantum efficiency and limited photocatalytic activity [23]. To further improve the photocatalytic performance of TiO 2 , researchers modified TiO 2 through doping [24], composite, surface modification [25], and other means to optimize the structure of TiO 2 , thereby expanding its photoresponse range and reducing the carrier recombination rate [26,27].…”

Platinum-catalyzed Nb–doped TiO2 and Nb-doped TiO2 nanotubes for hydrogen generation in proton exchange membrane water electrolyzers

“…To the best of authors' knowledge, Nb-doped TiO2 and TNTs have not yet been reported to be used as Pt supports for the HER. There are, however, a number of recent papers dealing with the use of Ptfree catalysts supported on TiO2 for the HER in both, acidic [41][42][43][44][45][46][47][48][49] and alkaline [49][50][51][52][53] electrolytes. Different catalysts such as quantum dots, IrO2 and MoSx, Ni, Ru and Co species, were supported on nanostructured and mesoporous TiO2 [46][47][48][49][51][52][53] and on TNT arrays produced by Ti anodizing [41][42][43][44][45]50].…”

“…There are, however, a number of recent papers dealing with the use of Ptfree catalysts supported on TiO2 for the HER in both, acidic [41][42][43][44][45][46][47][48][49] and alkaline [49][50][51][52][53] electrolytes. Different catalysts such as quantum dots, IrO2 and MoSx, Ni, Ru and Co species, were supported on nanostructured and mesoporous TiO2 [46][47][48][49][51][52][53] and on TNT arrays produced by Ti anodizing [41][42][43][44][45]50]. The TiO2 used was generally nondoped, although a fast electron transfer was reported for N-doped TNTs [44].…”