Highly Efficient Regeneration of Deactivated Au/C Catalyst for 4-Nitrophenol Reduction,The Journal of Physical Chemistry C

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Highly Efficient Regeneration of Deactivated Au/C Catalyst for 4-Nitrophenol Reduction
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2017-11-14 00:00:00 , DOI: 10.1021/acs.jpcc.7b08787
Mingbo Ruan ₁ , Ping Song ₁ , Jing Liu _{1,

2} , Erling Li _{1,

2} , Weilin Xu ₁

Affiliation

In the present work, we proposed an effective method to regenerate sintered gold catalyst by improving the dispersion of gold nanoparticles. With the liquid oxychlorination reaction, a sintered carbon-supported gold (Au/C) nanocatalyst was effectively regenerated by improving the redispersion of Au nanoparticles with additional carbon support. The Au-catalyzed model reaction between 4-nitrophenol and sodium borohydride (NaBH₄) indicates that the apparent activity of the optimal Au/C regenerated (Au 0.45 wt %) exceeds that of the initial fresh Au/C (Au 1 wt %), making Au utilization tripled and potentially sustainable for their extensive application in industry.

中文翻译：

高效再生失活的Au / C催化剂以还原4-硝基苯酚

在目前的工作中，我们提出了一种通过改善金纳米颗粒的分散性来再生烧结金催化剂的有效方法。通过液态氧氯化反应，可以通过改进含附加碳载体的Au纳米颗粒的再分散，有效地再生烧结的碳载金（Au / C）纳米催化剂。4-硝基苯酚与硼氢化钠（NaBH ₄）之间的Au催化模型反应表明，最佳再生的Au / C（Au 0.45 wt％）的表观活性超过了初始新鲜Au / C（Au 1 wt％）的表观活性，使得金的利用率增加了三倍，并可能在其广泛的工业应用中具有可持续性。

更新日期：2017-11-15

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