Electrochemically Li-intercalated TiO2 nanoparticles for High performance photocatalytic production of hydrogen

Kim, Mun Kyoung; Sim, Woo Hyeong; Choi, Miri; Lim, Hyungseob; Kwon, Young-Hyuk; Jeong, Hyung Mo

doi:10.1016/j.cattod.2019.07.058

Cited by 9 publications

(2 citation statements)

References 35 publications

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“…Since 1972, photocatalytic water splitting for hydrogen evolution has been widely reported and regarded as one of the most promising methods for solar energy storage [23][24][25]. Theoretically, semiconductor-based photocatalysis can be described based on the band structure.…”

Section: Photocatalysis For Hydrogen Evolutionmentioning

confidence: 99%

Photocatalytic Reforming for Hydrogen Evolution: A Review

Yao

Gao

et al. 2020

Catalysts

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Hydrogen is considered to be an ideal energy carrier to achieve low-carbon economy and sustainable energy supply. Production of hydrogen by catalytic reforming of organic compounds is one of the most important commercial processes. With the rapid development of photocatalysis in recent years, the applications of photocatalysis have been extended to the area of reforming hydrogen evolution. This research area has attracted extensive attention and exhibited potential for wide application in practice. Photocatalytic reforming for hydrogen evolution is a sustainable process to convert the solar energy stored in hydrogen into chemical energy. This review comprehensively summarized the reported works in relevant areas, categorized by the reforming precursor (organic compound) such as methanol, ethanol and biomass. Mechanisms and characteristics for each category were deeply discussed. In addition, recommendations for future work were suggested.

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Section: Photocatalysis For Hydrogen Evolutionmentioning

confidence: 99%

Photocatalytic Reforming for Hydrogen Evolution: A Review

Yao

Gao

et al. 2020

Catalysts

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“…[11a,14] In literature, there are some reports on the use of rock salttype Li 0.5 Ti 0.5 O as a catalyst for the photocatalytic dye degradation [35a] and hydrogen generation. [60] Since the compounds formed during ball milling of TiO 2 and LiH, Li 0.5 Ti 0.5 O was prepared via a solid-state reaction under argon using TiO 2 and 2 equiv. LiH (Figure S20, Supporting Information).…”

Section: Photocatalytic Degradation Experimentsmentioning

confidence: 99%

Black Titania and Niobia within Ten Minutes – Mechanochemical Reduction of Metal Oxides with Alkali Metal Hydrides

Michaely

Janka

Gießelmann

et al. 2023

Chemistry A European J

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Partially or fully reduced transition metal oxides show extraordinary electronic and catalytic properties but are usually prepared by high temperature reduction reactions. This study reports the systematic investigation of the fast mechanochemical reduction of rutile‐type TiO2 and H‐Nb2O5 to their partially reduced black counterparts applying NaH and LiH as reducing agents. Milling time and oxide to reducing agent ratio show a large influence on the final amount of reduced metal ions in the materials. For both oxides LiH shows a higher reducing potential than NaH. An intercalation of Li+ into the structure of the oxides was proven by PXRD and subsequent Rietveld refinements as well as 6Li solid‐state NMR spectroscopy. The products showed a decreased band gap and the presence of unpaired electrons as observed by EPR spectroscopy, proving the successful reduction of Ti4+ and Nb5+. Furthermore, the developed material exhibits a significantly enhanced photocatalytic performance towards the degradation of methylene blue compared to the pristine oxides. The presented method is a general, time efficient and simple method to obtain reduced transition metal oxides.

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Photoelectrocatalytic Seawater Splitting

Xiao

Wang

et al. 2023

Photo-Driven Seawater Splitting for Hydrogen Production

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Electrochemically Li-intercalated TiO2 nanoparticles for High performance photocatalytic production of hydrogen

Cited by 9 publications

References 35 publications

Photocatalytic Reforming for Hydrogen Evolution: A Review

Photocatalytic Reforming for Hydrogen Evolution: A Review

Black Titania and Niobia within Ten Minutes – Mechanochemical Reduction of Metal Oxides with Alkali Metal Hydrides

Photoelectrocatalytic Seawater Splitting

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