Investigation on the Stability of Supported Gold Nanoparticles
Investigation on the Stability of Supported Gold Nanoparticles
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负载型金纳米粒子的稳定性研究
DOI：
10.3390/catal3030656
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发表时间：
2013
期刊：
影响因子：
3.9
通讯作者：
F. Boccuzzi
中科院分区：
文献类型：
--
作者：
M. Signoretto;F. Menegazzo;V. Trevisan;F. Pinna;M. Manzoli;F. Boccuzzi
研究了保持Au/ZrO2样品催化性能的方法。研究了三种可能的失活原因，即金纳米颗粒的烧结生长、金属浸出和抑制反应的非活性物质的形成。本文特别研究了金纳米颗粒的稳定性：(1)在储存条件下；(2)气相反应在流时间（LT-WGSR）；(3)随时间进行液相反应（糠醛氧化酯化）。
The procedures leading to the preservation of catalytic performances of Au/ZrO2 samples have been investigated. The three potential causes of deactivation, namely the particle growth by sintering of gold nanoparticles, the metal leaching and the formation of un-reactive species which inhibit the reaction, have been evaluated. In particular, this paper deals with the stability of gold nanoparticles: (1) under storage conditions; (2) with time on stream for a gas phase reaction (LT-WGSR); (3) with time on stream for a liquid phase reaction (furfural oxidative esterification).