Degradation of a Lignin Model Compound by ROS Generated In Situ through Controlled ORR in Ionic Liquid | Zendy

Haomin Jiang | Zendy; Yujuan Cheng | Zendy; Zhaohui Wang | Zendy; Zhiqun Bai | Zendy; Yang Tang | Zendy; Yanzhi Sun | Zendy; Pingyu Wan | Zendy; Yongmei Chen | Zendy

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Degradation of a Lignin Model Compound by ROS Generated In Situ through Controlled ORR in Ionic Liquid

Author(s) -

Haomin Jiang,

Yujuan Cheng,

Zhaohui Wang,

Zhiqun Bai,

Yang Tang,

Yanzhi Sun,

Pingyu Wan,

Yongmei Chen

Publication year - 2020

Publication title -

journal of the electrochemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.258

H-Index - 271

eISSN - 1945-7111

pISSN - 0013-4651

DOI - 10.1149/1945-7111/abd518

Subject(s) - lignin , coniferyl alcohol , chemistry , guaiacol , ether , ionic liquid , bond cleavage , ether cleavage , cleavage (geology) , ionic bonding , organic chemistry , vanillin , degradation (telecommunications) , catalysis , materials science , ion , telecommunications , fracture (geology) , computer science , composite material

The cleavage of the linkage bonds among the C9 units in lignin molecules via selective oxidation method to obtain small-weight aromatic compounds is an important way to lignin valorisation. In this study, the cleavage pathways of bonds in a lignin model compound, GGE (guaiacylglycerol- β -guaiacyl ether), by the reactive oxygen species (ROS) in situ generated through electrochemical oxygen reduction reaction (ORR) in an aprotic ionic liquid ([BMIM]BF 4 ) was investigated. The results indicated that when the main ROS was ·OOH, coniferyl alcohol, guaiacol and vanillin were detected as the degradation products which is supposed to be caused by β -O-4 bonds cleavage; Otherwise, when HO 2 − was the main ROS, coniferyl alcohol could not be detected and the degradation reaction is believed to be trigerred by C α -C β bonds cleavage.

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