کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1276516 | 1497507 | 2014 | 5 صفحه PDF | دانلود رایگان |
• A series of partially nitrided solid solutions have been synthesized.
• Energy band engineering was used to tune the band configurations.
• The nitrogen oxide split water under visible light with high activity.
• The catalysts are stable under visible light during 10 h of reaction.
A sort of mixed nitrogen oxides, with a general formula In–Ni–Ta–O–N, has been synthesized with a solid state reaction method and used as the catalyst for visible light (λ > 400 nm) driven overall water splitting without the extra loading of a cocatalyst. Hydrogen and oxygen are evolved with a high rate in an ideal ratio of 2 to 1. The non-nitrided mixed oxide and individual oxide or nitride do not show any activity under the same reaction conditions. The elemental ratio plays a key role and the composition with the best activity is found as In:Ni:Ta:O:N = 0.9:0.1:1:3.21:0.774, with which the sample has an absorption edge at 550 nm.
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Journal: International Journal of Hydrogen Energy - Volume 39, Issue 2, 13 January 2014, Pages 731–735