期刊
GREEN CHEMISTRY
卷 21, 期 6, 页码 1498-1504出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8gc03511c
关键词
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资金
- National Natural Science Foundation of China [21776020]
- Fundamental Research Funds for the Central Universities [2018BLRD12]
- National Key R&D Program of China [2017YFB0307903]
Reductive catalytic fractionation (RCF) of lignocellulosic biomass, that is depolymerization of the native lignin component into well-defined monomeric phenols in the first step, offers an opportunity to utilize entire biomass components. Herein, we report that Ni@ZIF-8 can serve as a chemodivergent catalyst in RCF of eucalyptus sawdust, thus selectively producing phenolic compounds having either a propyl or propanol end-chain under different reaction conditions. In both cases, high yields of lignin monomers and a high degree of delignification were achieved, next to well-preserved carbohydrate pulp suitable for further processing. A mechanistic study using model compounds indicated that the dehydroxylation at the -position of the -O-4 structure may be involved in the selectivity-controlling step.
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