In-situ construction of N-doped hollow carbon polyhedral cage anchored Co-Ni dual binding sites as nanoreactor for efficient real lignin oil hydrodeoxygenation

Yingbo Zhu, Yulong Ma, Yonggang Sun, Liqiong Wang, Jie Ding, Yudan Zhong, Juan Zhang, Lei Wang and Yuanyuan Li

Renewable Energy, 2023, vol. 217, issue C

Abstract: Rational design multifunctional nanoreactor with high activity under H2-free/low-H2 conditions for lignin hydrodeoxygenation reaction (HDO) is attractive for sustainable energy conversion. Here, strategy for in-situ assembly-etching was proposed to prepare N-doped hollow carbon polyhedral cage anchored Co-Ni dual binding sites as nanoreactors (CoxNiy/NC). Its unique and controllable hollow structure exhibits high content of pyridine-N as Lewis-base site for adsorption of substrate, and in adjacent nitrogen defect sites as active metal anchors enabled the Co2Ni1/NC to perform perfect the hydrodeoxygenation of real lignin oil. The conversion of lignin pyrolytic oil to cycloalkane products was achieved under 0.2 MPa H2 and 3 h, the yield of total liquid product and the cyclohexane were 87.8 wt% and 53.4 wt%, respectively. This research provides a novel way for upgrading raw bio-oil to high-value products under low energy consuming conditions.

Keywords: Lignin pyrolytic oil; Hollow nanoreactor; N-Doped carbon; Low H2 condition (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:217:y:2023:i:c:s0960148123011370

DOI: 10.1016/j.renene.2023.119222

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