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TiO2: Si nanotube/1T-MoSe2 nanosheet hybrids with highly efficient hydrogen evolution catalytic activity
Journal of Colloid and Interface Science ( IF 9.4 ) Pub Date : 2018-03-22 , DOI: 10.1016/j.jcis.2018.03.068
H.-Y. He , Z. He , Q. Shen

Transition metal dichalcogenides exhibit an excellent catalytic activity for hydrogen evolution reaction and continue to attract many studies. Some heterojunctions are also used to enhance the catalytic activity. In this work, the TiO2 nanotubes/MoSe2 and Si-doped TiO2 NTs/MoSe2 hybrids were synthesized. The MoSe2 in the hybrids exhibited nanosheet morphology and metallic (1T) structure with high conductivity and catalytic activity for hydrogen evolution reaction. Moreover, MoSe2 decoration provided high light absorbance for the hybrids and highly efficient interface-induced effect at the heterojunction. Furthermore, the Si-doping increased specific surface area and hydrophilicity. Thus, the Si-doped TiO2 NTs/MoSe2 hybrids showed remarkably greater photocatalytic and electrocatalytic activities than the nanotubes.



中文翻译:

TiO 2:具有高效氢析出催化活性的Si纳米管/ 1T-MoSe 2纳米片杂化物

过渡金属二卤化物对氢气的释放反应具有出色的催化活性,并继续吸引着许多研究。一些异质结也用于增强催化活性。在这项工作中,合成了TiO 2纳米管/ MoSe 2和硅掺杂的TiO 2 NTs / MoSe 2杂化物。杂种中的MoSe 2表现出纳米片形态和金属(1T)结构,具有高电导率和催化活性,可用于氢释放反应。此外,MoSe 2装饰物为杂种提供了高吸光度,并在异质结处提供了高效的界面诱导效应。此外,Si掺杂增加了比表面积和亲水性。因此,Si掺杂的TiO 2 NTs / MoSe 2杂化物显示出比纳米管显着更大的光催化和电催化活性。

更新日期:2018-03-22
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