期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 59, 期 21, 页码 9912-9925出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.0c01145
关键词
-
资金
- National Key R&D Program of China [2018YFB1501402]
- National Natural Science Foundation of China [51976220, 51536009, 51876209]
- Natural Science Foundation of Guangdong Province [2017A030308010]
- DNL Cooperation Fund, CAS [DNL180302]
- Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program [2017BT01N092]
Lactic acid (LA), a key platform chemical from biomass, is an ideal feedstock for biodegradable plastic synthesis. The conversion of glycerol to LA was investigated over graphiticcarbon-layer-encapsulated Ni-NiOx core/shell (Ni-NiOx@C) catalysts, which were prepared by controlled oxidation from pristine Ni@C. The oxidation temperature greatly influenced the percentage of NiOx and thus the amount of Lewis acid. In the conversion of glycerol, the catalyst oxidized at 200 degrees C provided hitherto the highest LA formation rate (5.67 mol/(m(3).g(cat).s)), which is at least 15 times faster than those obtained over the reported Cu and noble metal catalysts under comparable reaction conditions. The excellent performance of Ni-NiOx@C was attributed to the synergistic effect of the homogenous base, metallic Ni, and acidic NiOx sites, which accelerates the bond cleavage of alpha-C-H and C-O and promotes ultrafast formation of LA within 30 min.
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。
推荐
暂无数据