Facile synthesis of ultra-small monodisperse ceria nanocrystals at room temperature and their catalytic activity under visible light
Facile synthesis of ultra-small monodisperse ceria nanocrystals at room temperature and their catalytic activity under visible light
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DOI：
10.1039/b922914k
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发表时间：
2010-03
影响因子：
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通讯作者：
Yatendra S. Chaudhary;Snigdha Panigrahi;S. Nayak;B. Satpati;S. Bhattacharjee;N. Kulkarni
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文献类型：
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作者：
Yatendra S. Chaudhary;Snigdha Panigrahi;S. Nayak;B. Satpati;S. Bhattacharjee;N. Kulkarni
采用优化的方法，在室温下合成了单分散的超小尺寸氧化铈纳米晶（3 ~ 4 nm）。合成样品的宽峰（[111]，[200]，[220]和[311]）表明氧化铈形成了立方相。通过TEM的详细表征显示单分散和结晶的氧化铈纳米晶体的形成。这些合成的纳米晶体在可见光下表现出自催化行为和光催化活性，因此似乎是生物医学（抗氧化剂），太阳能电池应用的潜在候选人。
An optimized facile method has been developed to synthesize ultra-small monodisperse ceria nanocrystals (3 to 4 nm) strictly at RT. The presence of well resolved broad peaks ([111], [200], [220] and [311]) for as-synthesized samples reveal the formation of the cubic phase of ceria. The detailed characterization by TEM exhibited the formation of monodisperse and crystalline ceria nanocrystals. These as-synthesized nanocrystals have shown autocatalytic behaviour and photocatalytic activity under visible sunlight, hence appears to be potential candidates for biomedical (antioxidant), solar cell applications.