Results 161 to 170 of about 23,553 (234)

Formation and evolution of brown carbon during aqueous-phase nitrate-mediated photooxidation of guaiacol and 5-nitroguaiacol

Atmospheric Environment, 2021
Light absorbing organic aerosols, which are commonly referred to as brown carbon (BrC), have important climate impacts. Phenolic compounds are a class of aromatic compounds that are known BrC precursors.
Junwei Yang, Wing Chi Au, Haymann Law, C. Lam, T. Nah   +4 more
semanticscholar   +1 more source

Facile synthesis of bio-based reactive flame retardant from vanillin and guaiacol for epoxy resin

Composites Part B: Engineering, 2020
With the purpose to obtain an eco-friendly flame retardant for epoxy resin, a facile method for the synthesis of a bio-based epoxy monomer containing DOPO units (DGEBDB) from lignin-derived vanillin and guaiacol, was presented in this work.
Jingkai Liu, J. Dai, Shuaipeng Wang, Yunyan Peng, Lijun Cao, Xiaoqing Liu   +5 more
semanticscholar   +1 more source

Structure-tunable pompon-like RuCo catalysts: Insight into the roles of atomically dispersed Ru-Co sites and crystallographic structures for guaiacol hydrodeoxygenation

, 2021
Currently, the highly efficient conversion of biomass resources into highly valuable chemicals and biofuels is one of the most prospective approaches to reduce greenhouse gases emission and environmental pollution caused by excess consumption of fossil ...
Liang Xiang, Guoli Fan, Lan Yang, Lirong Zheng, Feng Li   +4 more
semanticscholar   +1 more source

Ru/Hβ catalyst prepared by the deposition-precipitation method for enhancing hydrodeoxygenation ability of guaiacol and lignin-derived bio-oil to produce hydrocarbons

Journal of the Energy Institute, 2021
Recently hydrocarbons with high yield from the selective hydrodeoxygenation (HDO) of lignin-derived bio-oil under low temperature still encounters the great challenges.
Lin Hu, Xianyong Wei, ZhiFan Zong
semanticscholar   +1 more source

Catalytic hydrodeoxygenation of guaiacol as a model compound of woody bio-oil over Fe/AC and Ni/γ-Al2O3 catalysts

, 2021
In this study, Ni/γ-Al2O3 and Fe/activated carbon (AC) catalysts were prepared by an incipient impregnation method and then utilized for hydrodeoxygenation (HDO) of guaiacol (GUA).
Q. Tran, H. Ly, Byeong-Soung Kwon, Seung-Soo Kim, Jinsoo Kim   +4 more
semanticscholar   +1 more source

Ni/hierarchical ZSM-5 zeolites as promising systems for phenolic bio-oil upgrading: Guaiacol hydrodeoxygenation

, 2020
Hierarchical ZSM-5 with mesopores were derived from seed directing crystalline process. The efficient encapsulation of nickel metal was achieved by a simple incipient wetness impregnation method, and a stable Ni/hierarchical ZSM-5 hydrodeoxygenation (HDO)
Wenlin Li, Hongyan Wang, Xiaozhuo Wu, Luis Betancourt, Chunyan Tu, M. Liao, X. Cui, Feng Li, Jiajun Zheng, Ruifeng Li   +9 more
semanticscholar   +1 more source

Hydrodeoxygenation of Guaiacol to Phenol over Ceria-Supported Iron Catalysts

, 2020
Guaiacol, one of the main components and a model compound of lignin-derived bio-oil, was transformed into phenol and methylated phenols over a series of supported iron catalysts under atmospheric p...
Congcong Li, Y. Nakagawa, M. Tamura, A. Nakayama, K. Tomishige   +4 more
semanticscholar   +1 more source

Structures of guaiacol and the guaiacol-argon van der waals complex from rotational spectroscopy of guaiacol isotopologues

Journal of Molecular Structure, 2021
Abstract High-resolution rotational spectra were recorded for guaiacol and eight isotopologues as well as the guaiacol-argon van der Waals complex using a resonant-cavity Fourier transform microwave spectrometer. The monomer spectra were assigned to an anti-syn conformation with an internal hydrogen bond from the hydroxyl group to the methoxy oxygen.
Ranil M. Gurusinghe, Ashley Fox-Loe, Michael J. Tubergen   +2 more
openaire   +1 more source

Biobased high-performance tri-furan functional bis-benzoxazine resin derived from renewable guaiacol, furfural and furfurylamine

, 2020
A novel fully biobased tri-furan functional bis-benzoxazine resin has been synthesized using guaiacol, furfural, furfurylamine and paraformaldehyde as raw materials via a two-step reaction approach.
Rui Yang, Mengchao Han, Boran Hao, Kan Zhang   +3 more
semanticscholar   +1 more source

QM-Cluster Model Study of the Guaiacol Hydrogen Atom Transfer and Oxygen Rebound with Cytochrome P450 Enzyme GcoA.

Journal of Physical Chemistry B, 2021
The key step of the O-demethylation of guaiacol by GcoA of the cytochrome P450-reductase pair was studied with DFT using two 10-residue and three 15-residue QM-cluster models.
Qianyi Cheng, N. DeYonker
semanticscholar   +1 more source