4.6 Article

Electron-Rich Ruthenium on Nitrogen-Doped Carbons Promoting Levulinic Acid Hydrogenation to γ-Valerolactone: Effect of Metal-Support Interaction

期刊

ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 7, 期 19, 页码 16501-16510

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.9b03742

关键词

Ruthenium nanoparticle; Electronic state; Levulinic acid; Hydrogenation; Biomass

资金

  1. National Natural Science Foundation of China [21676100]
  2. Guangdong Natural Science Foundation [2017A030312005]
  3. Science and Technology Program of Guangzhou City [201707010058]

向作者/读者索取更多资源

Ru has been found to be a highly efficient catalyst for producing gamma-valerolactone from the hydrogenation of levulinic acid. However, the active species on Ru nanoparticles (NPs) are still unclear. Here, we synthesized a series of Ru NPs with tunable chemical states obtained by altering the interaction with carbon-nanotube-based supports, achieved by the strategies of doping carbon nanotubes with N and S atoms, changing the amount of dopants, and varying the loading of Ru. The surface species of the supported Ru NPs, identified by X-ray photoelectron spectroscopy, were linked to the catalytic activities instrinsically. We found that the Ru NPs possessing Ru-0 with lower binding energy (Ru 3p) showed higher activity independent of the parameters of synthesis. Theoretical calculations indicated that the electron-rich Ru-0 enhanced LA hydrogenation through facilitating R-COOH breaking into R-CO and -OH, suggesting a powerful tool modifying the catalytic activity of carbon-supported metals by manipulating the electronic metal-support interaction.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据