Ti-Si photocatalyst for producing hydrogen synthesized by shock wave | Zendy

Jianjun Liu | Zendy; Hongling Zhang | Zendy; Pengwan Chen | Zendy; Naifu Cui | Zendy; Xiang Gao | Zendy

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Ti-Si photocatalyst for producing hydrogen synthesized by shock wave

Author(s) -

Jianjun Liu,

Hongling Zhang,

Pengwan Chen,

Naifu Cui,

Xiang Gao

Publication year - 2012

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.3686544

Subject(s) - photocatalysis , materials science , nitromethane , detonation , reagent , chemical engineering , water splitting , hydrogen , photocatalytic water splitting , hydrogen production , phase (matter) , shock wave , shock (circulatory) , particle (ecology) , catalysis , explosive material , chemistry , organic chemistry , thermodynamics , medicine , physics , oceanography , engineering , geology

The TiSi 2 and Ti 5Si 3 compounds with different Ti/Si ratios were synthesized by shockinduced reaction arisen from the flyer impact driven by detonation of the main charge of nitromethane. The phase composition and particle morphology of the recovered samples were characterized by XRD and SEM. It is found that TiSi 2 is formed while flyer velocity is at 3.37km/s and exhibits certain photocatalytic activity of splitting water into hydrogen compared with the unreacted Ti+Si precursor shocked at 3.07km/s. Consequently, Ti 5Si 3 synthesized at 3.37km/s has much better photocatalytic activity of splitting water into hydrogen than that of TiSi 2 synthesized by shock wave at identical condition. The coupled photocatalyst of Ti 5Si 3 and Ti 8O 15 were shocksynthesized by adding oxidant of NH 4ClO 4(wt.5%) and exhibits superior photocatalytic activity. The experimental results suggest that shock-induced reaction of Ti and Si with different ratios or other reagent may get novel functional materials for photocatalytic or photovoltaic application. © 2012 American Institute of Physics.

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