Wet aerobic oxidation of lignin into aromatic aldehydes catalysed by a perovskite-type oxide: LaFe(1-x)Cu(x)O3 (x=0, 0.1, 0.2).
The perovskite-type oxide catalyst LaFe(1-x)Cu(x)O(3 )(x=0, 0.1, 0.2) was prepared by the sol-gel method, and tested as a catalyst in the wet aerobic oxidation (WAO) of lignin into aromatic aldehydes. The lignin conversion and the yield of each aromatic aldehyde were significantly enhanced in the catalytic process, compared with the non-catalyzed process. Moreover, it was shown that the stability of activity and structure of LaFe(1-x)Cu(x)O(3 )(x=0, 0.1, 0.2) remained nearly unchanged after a series of successive recyclings of the catalytic reactions, indicating it was an efficient and recyclable heterogeneous catalyst for the conversion of lignin into aromatic aldehydes in the WAO process.
Zhang
Junhua
J
Department of Resources Science and Engineering, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, Guangdong Province, China.
Deng
Haibo
H
Lin
Lu
L
D000332:Aerobiosis; D000447:Aldehydes / Q000737:chemistry*; D017610:Calcium Compounds / Q000737:chemistry*; D008031:Lignin / Q000737:chemistry; D015394:Molecular Structure; D010087:Oxides / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*
D000447:Aldehydes; D017610:Calcium Compounds; D010087:Oxides; C059910:perovskite; D008031:Lignin; D014025:Titanium
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