Reaction synthesis of TiSi2 and Ti5Si3 by ball-milling and shock loading and their photocatalytic activities

Liu, Jianjun; Bai, Yuna; Chen, Pengwan; Cui, Naifu; Yin, Hao

doi:10.1016/j.jallcom.2012.12.100

Cited by 24 publications

(10 citation statements)

References 14 publications

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“…In a typical photocatalytic experiment, 50 mg of the as-prepared photocatalyst and 60 mL of oxalic acid aqueous solution (0.005 M) were added into the quartz flask whilst stirring [45]. The system was deaerated by bubbling argon into the solution for 30 min before the reaction.…”

Section: Photocatalytic Reactionmentioning

confidence: 99%

WS2 as an Effective Noble-Metal Free Cocatalyst Modified TiSi2 for Enhanced Photocatalytic Hydrogen Evolution under Visible Light Irradiation

et al. 2016

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Abstract:A noble-metal free photocatalyst consisting of WS 2 and TiSi 2 being used for hydrogen evolution under visible light irradiation, has been successfully prepared by in-situ formation of WS 2 on the surface of TiSi 2 in a thermal reaction. The obtained samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDX), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The results demonstrate that WS 2 moiety has been successfully deposited on the surface of TiSi 2 and some kind of chemical bonds, such as Ti-S-W and Si-S-W, might have formed on the interface of the TiSi 2 and WS 2 components. Optical and photoelectrochemical investigations reveal that WS 2 /TiSi 2 composite possesses lower hydrogen evolution potential and enhanced photogenerated charge separation and transfer efficiency. Under 6 h of visible light (λ > 420 nm) irradiation, the total amount of hydrogen evolved from the optimal WS 2 /TiSi 2 catalyst is 596.4 µmol·g −1 , which is around 1.5 times higher than that of pure TiSi 2 under the same reaction conditions. This study shows a paradigm of developing the effective, scalable and inexpensive system for photocatalytic hydrogen generation.

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Section: Photocatalytic Reactionmentioning

confidence: 99%

WS2 as an Effective Noble-Metal Free Cocatalyst Modified TiSi2 for Enhanced Photocatalytic Hydrogen Evolution under Visible Light Irradiation

et al. 2016

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“…The pressure coefficients, du/dP, as well as the Grüneisen parameters, g, obtained in this work for Il-ZnTiO 3 are shown together with those previously obtained for Il-MgTiO 3 by Reynard and Guyot [13] for comparison. The Grüneisen parameters of Il-ZnTiO 3 have been calculated using a theoretical bulk modulus of B 0 ¼ 164.9 GPa [34].…”

Section: High (Pressure Temperature) Raman Spectroscopy Of Il-zntiomentioning

confidence: 99%

Synthesis and high (pressure, temperature) stability of ZnTiO3 polymorphs studied by Raman spectroscopy

Bernert

Ruiz‐Fuertes

Bayarjargal

et al. 2015

Solid State Sciences

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“…This may be owing to the formation of the TiSi 2 phase. Ti 5 Si 3 and TiSi 2 phases are both Ti-Si intermetallic silicides, which have a significant impact on the microhardness of coatings due to their characteristic advantages of high hardness, high melting points, and well oxidation resistance [ 17 ].…”

Section: Resultsmentioning

confidence: 99%

Microstructure, Wear Resistance and Oxidation Behavior of Ni-Ti-Si Coatings Fabricated on Ti6Al4V by Laser Cladding

Zhuang

Zhang

et al. 2017

Materials

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The Ni-Ti-Si composite coatings were successfully fabricated on Ti6Al4V by laser cladding. The microstructure were studied by SEM (scanning electron microscopy) and EDS (energy dispersive spectrometer). It has been found that Ti2Ni and Ti5Si3 phases exist in all coatings, and some samples have TiSi2 phases. Moreover, due to the existence of these phases, coatings presented relatively higher microhardness than that of the substrate (826 HV (Vickers hardness)) and the microhardness value of coating 3 is about twice larger than that of the substrate. During the dry sliding friction and wear test, due to the distribution of the relatively ductile phase of Ti2Ni and reinforcement phases of Ti5Si3 and TiSi2, the coatings performed good wear resistance. The oxidation process contains two stages: the rapid oxidation and slow oxidation by high temperature oxidation test at 800 °C for 50 h. Meanwhile, the value of the oxidation weight gain of the substrate is approximately three times larger than that of the coating 4. During the oxidation process, the oxidation film formed on the coating is mainly consisted of TiO2, Al2O3 and SiO2. Phases Ti2Ni, Ti5Si3, TiSi2 and TiSi were still found and it could be responsible for the improvement in oxidation resistance of the coatings by laser cladding.

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Reaction synthesis of TiSi2 and Ti5Si3 by ball-milling and shock loading and their photocatalytic activities

Cited by 24 publications

References 14 publications

WS2 as an Effective Noble-Metal Free Cocatalyst Modified TiSi2 for Enhanced Photocatalytic Hydrogen Evolution under Visible Light Irradiation

WS2 as an Effective Noble-Metal Free Cocatalyst Modified TiSi2 for Enhanced Photocatalytic Hydrogen Evolution under Visible Light Irradiation

Synthesis and high (pressure, temperature) stability of ZnTiO3 polymorphs studied by Raman spectroscopy

Microstructure, Wear Resistance and Oxidation Behavior of Ni-Ti-Si Coatings Fabricated on Ti6Al4V by Laser Cladding

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