NiPt hollow nanocatalyst: Green synthesis, size control and electrocatalysis

NiPt hollow nanocatalyst: Green synthesis, size control and electrocatalysis
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NiPt空心纳米催化剂:绿色合成、尺寸控制和电催化

DOI:
10.1016/j.pnsc.2014.03.013
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发表时间:
2014-04
期刊:
Progress in Natural Science:Materials International
影响因子:
--
通讯作者:
Chen Chinping
Chen Chinping
中科院分区:
其他
文献类型:
--
作者:
Shan Aixian;Cheng Ming;Fan Hongsheng;Chen Zhichao;Wang Rongming;Chen Chinping

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以前体镍纳米化合物为牺牲模板,通过一锅湿化学法在室温下合成了几乎单分散的双金属 NiPt 空心纳米球。尺寸控制是通过牺牲模板进行的,直径从约 35 nm 到近 100 nm。 NiPt 空心球的壳厚度薄至 2-3 nm,比单层合金 NiPt 纳米微晶稍大。与商业Pt/C催化剂和涂有PVP的空心纳米球相比,以柠檬酸作为表面活性剂的产品表现出增强的氧还原活性。它具有合成简便、成本低廉和优异的电催化活性,在燃料电池、生物技术和环境化学等领域具有潜在的应用前景。
Nearly monodispersed hollow nanospheres of bimetallic NiPt have been synthesized by a one-pot wet chemical method at room temperature with a precursor Ni nanocompound as a sacrificial template. The size control is carried out via the sacrificial template, from about 35 nm to nearly 100 nm in diameter. The shell thickness of the NiPt hollow sphere reaches down to as thin as 2–3 nm slightly larger than a single layer of alloyed NiPt nanocrystallites. The product with the citric acid as surfactant exhibits enhanced oxygen reduction activities compared to a commercial Pt/C catalyst and the hollow nanospheres coated with PVP. It has potential applications in fuel cells, biotechnology and environmental chemistry with the facile synthesis, low cost and excellent electrocatalytic activity.
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影响因子: 8.6
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