Redox Catalysis Facilitates Lignin Depolymerization.
Redox Catalysis Facilitates Lignin Depolymerization.
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DOI：
10.1021/acscentsci.7b00140
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发表时间：
2017-06-28
影响因子：
18.2
通讯作者：
Stephenson CRJ
中科院分区：
文献类型：
--
作者：
Bosque I;Magallanes G;Rigoulet M;Kärkäs MD;Stephenson CRJ
木质素是芳香族商品化学品的难降解和未充分开发的天然原料，其降解通常需要使用高温和苛刻的反应条件。在这里，我们提出了一个环境温度一锅法的控制氧化和解聚这种强大的资源。利用电催化氧化的潜力结合我们的光催化裂解方法，我们开发了一种操作简单的方法，用于选择性断裂β-O-4键，具有优异的质量回收率，这为将现有的木质素用途从能源扩展到商品化学品和合成构件来源提供了独特的机会。在常温下，采用间歇式电解-电解-间歇式电解-间歇式电解-电解-电解
Lignin is a recalcitrant and underexploited natural feedstock for aromatic commodity chemicals, and its degradation generally requires the use of high temperatures and harsh reaction conditions. Herein we present an ambient temperature one-pot process for the controlled oxidation and depolymerization of this potent resource. Harnessing the potential of electrocatalytic oxidation in conjugation with our photocatalytic cleavage methodology, we have developed an operationally simple procedure for selective fragmentation of β-O-4 bonds with excellent mass recovery, which provides a unique opportunity to expand the existing lignin usage from energy source to commodity chemicals and synthetic building block source. Selective β-O-4 linkage fragmentation for lignin depolymerization has been achieved by combining electro- and photocatalysis in a seamless batch to flow process at ambient temperature with excellent mass recovery.