Catalytic Cleavage of the C-O Bond in Lignin and Lignin-Derived Aryl Ethers over Ni/AlPyOx Catalysts

被引：44

作者：

Jiang, Liang ^{[1
,2
]}

Xu, Guangyue ^{[1
,2
]}

Fu, Yao ^{[1
,2
]}

机构：

[1] Univ Sci & Technol China, Anhui Prov Key Lab Biomass Clean Energy, CAS Key Lab Urban Pollutant Convers, Hefei 230026, Peoples R China

[2] Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230031, Peoples R China

来源：

ACS CATALYSIS | 2022年 / 12卷 / 15期

基金：

中国国家自然科学基金;

关键词：

C-O cleavage; hydrogenolysis; nickel catalyst; lignin; phosphorus-doped materials; HETEROGENEOUS CATALYST; BIMETALLIC CATALYSTS; OXIDATIVE CLEAVAGE; SELECTIVE CLEAVAGE; NICKEL-CATALYST; ACID SITES; HYDROGENOLYSIS; HYDROGENATION; CONVERSION; PHOSPHATE;

D O I：

10.1021/acscatal.2c01523

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The conversion of lignin into value-added chemicals is one of the important ways for sustainable development. Herein, phytic acid, a biomass-derived chemical, was used as the phosphorus source and pore former to synthesize the AlPyOx support. After loading Ni, the Ni/AlPyOx catalysts were found to be highly active in the catalytic conversion of lignin model compounds to high-value-added chemicals under mild conditions. The benzyl phenyl ether (alpha-O-4 lignin model compound) could be completely converted into toluene and phenol with near-equivalent selectivity at 30 degrees C and 3 MPa H-2. Diphenyl ether and 2-phenoxy-1-phenylethanol were also used as 4-O-5 and beta-O-4 model compounds of lignin, respectively. The unique activity of Ni/AlP0.5Ox could be attributed to metallic Ni that interacts with AlP0.5Ox and the unique adsorption of substrates on the carrier. Lignin can also be degraded over Ni/AlP0.5Ox via selective cleavage of the C-O bond, and 26.60 wt % yield of identified monomers was obtained.

引用

页码：9473 / 9485

页数：13

共 68 条

[11] AN ALL-ELECTRON NUMERICAL-METHOD FOR SOLVING THE LOCAL DENSITY FUNCTIONAL FOR POLYATOMIC-MOLECULES [J].