Jianmin Lü

Dalian Institute of Chemical Physics

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Feng Wang

Chinese Academy of Sciences

Min Wang

Chinese Academy of Sciences

Andreas Heyden

University of South Carolina

Chaofeng Zhang

Nanjing Forestry University

Nengchao Luo

Dalian National Laboratory for Clean Energy

Yehong Wang

Dalian National Laboratory for Clean Energy

Hongji Li

Dalian University

Zhixin Zhang

Fujian Medical University

Sina Behtash

University of South Carolina

Jian Zhang

Dalian National Laboratory for Clean Energy

Cooperative Institutions

Chinese Academy of Sciences

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Dalian Institute of Chemical Physics

University of Chinese Academy of Sciences

Polygon Physics (France)

Dalian National Laboratory for Clean Energy

Dalian University

Zhejiang University

University of Science and Technology of China

Dalian University of Technology

Collaborative Innovation Center of Chemistry for Energy Materials

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Investigation of solvent effects on the hydrodeoxygenation of guaiacol over Ru catalysts

Catalysis Science & Technology (2019)

Mohammad Saleheen Anand Mohan Verma Osman Mamun Jianmin Lü Andreas Heyden

The effects of a liquid phase environment on the hydrodeoxygenation of guaiacol, a prototypical lignin derived compound, have been investigated over a Ru catalyst from first principles.

Hydrodeoxygenation

Guaiacol

10.1039/c9cy01763a

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Citations (38)

Assembly of stacked In2O3 nanosheets for detecting trace NO2 with ultrahigh selectivity and promoted recovery

Applied Surface Science (2020)

Wei Yang Huiting Chen Jianmin Lü

Nanosheet

Nanopore

10.1016/j.apsusc.2020.148217

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Citations (40)

Oxygen-implanted MoS₂ nanosheets promoting quinoline synthesis from nitroarenes and aliphatic alcohols via an integrated oxidation transfer hydrogenation–cyclization mechanism

Green Chemistry (2022)

Chaofeng Zhang Zhuyan Gao Puning Ren Jianmin Lü Zhipeng Huang

We herein report that MoS 2 with oxygen-implanting modification (O-MoS 2 ) can work as a multifunctional catalyst to achieve the one-pot quinoline synthesis from basic nitroarenes and aliphatic alcohols.

Quinoline

Transfer hydrogenation

10.1039/d1gc04058h

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Citations (12)

First-principles Investigations of Point Defect Behavior and Elastic Properties of TiNi Based Alloys

MRS Proceedings (2008)

Jianmin Lü Qing‐Miao Hu Rui Yang

Pseudopotential

Diffusionless transformation

10.1557/proc-1128-u09-03

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Citations (2)

[Determination of astragaloside IV in radix Astragali by HPLC with evaporative light scattering detector].

PubMed (2000)

Changxin Zhou Jianmin Lü

To develop a new method for the determination of astragaloside IV in Radix Astragali.A HPLC-ELSD method was set up, using Hypersil C18 column (150 mm x 4.6 mm), acetonitrile-water(1:2) as mobile phase with a flow rate of 1.0 ml.min-1. The parameters of drift tube and gas flow rate of the detector were set at 105 degrees C and 2.96 L.min-1 respectively.The calibration curve was linear in the range of 2.02-10.12 micrograms. The average recovery was 100.5%.The active constituent astragaloside IV in Radix Astragali can be separated effectively. ELSD detection is appropriate for the determination of constituents with end absorption at low ultra-violet wavelengths.

Chromatography detector

Radix (gastropod)

Astragaloside

Drift tube

Source

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Citations (3)

β-O-4 Bond Cleavage Mechanism for Lignin Model Compounds over Pd Catalysts Identified by Combination of First-Principles Calculations and Experiments

ACS Catalysis (2016)

Jianmin Lü Min Wang Xiaochen Zhang Andreas Heyden Feng Wang

Lignin in lignocellulosic biomass is the only renewable source for aromatic compounds, and effective valorization of lignin remains a significant challenge in biomass conversion processes. We have performed density functional theory calculations and experiments to investigate the cleavage mechanism of the C–O ether bond in the lignin model compound 2-phenoxy-1-phenylethanol with a β-O-4 linkage over a Pd(111) catalyst surface model. We propose the favorable reaction pathway to proceed as follows: the dilignol reactant gets dehydrogenated first on the α-carbon and then on the −OH group to generate its corresponding ketone 2-phenoxy-1-phenylethanone; the ketone continues to get dehydrogenated on the β-carbon by first a equilibrated keto–enol tautomerization to its enol form and then −OH dehydrogenation; the C–O ether bond cleavage happens afterward, leading to one-aromatic-ring surface intermediates followed by hydrogenation to yield acetophenone and phenol.

Acetophenone

Bond cleavage

10.1021/acscatal.6b00502

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Citations (130)

Two-Step, Catalytic C–C Bond Oxidative Cleavage Process Converts Lignin Models and Extracts to Aromatic Acids

ACS Catalysis (2016)

Min Wang Jianmin Lü Xiaochen Zhang Lihua Li Hongji Li

We herein report a two-step strategy for oxidative cleavage of lignin C–C bond to aromatic acids and phenols with molecular oxygen as oxidant. In the first step, lignin β-O-4 alcohol was oxidized to β-O-4 ketone over a VOSO4/TEMPO [(2,2,6,6-tetramethylpiperidin-1-yl)oxyl)] catalyst. In the second step, the C–C bond of β-O-4 linkages was selectively cleaved to acids and phenols by oxidation over a Cu/1,10-phenanthroline catalyst. Computational investigations suggested a copper-oxo-bridged dimer was the catalytically active site for hydrogen-abstraction from Cβ–H bond, which was the rate-determining step for the C–C bond cleavage.

Bond cleavage

10.1021/acscatal.6b02049

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Citations (227)

Visible-Light-Driven Self-Hydrogen Transfer Hydrogenolysis of Lignin Models and Extracts into Phenolic Products

ACS Catalysis (2017)

Nengchao Luo Min Wang Hongji Li Jian Zhang Tingting Hou

Obtaining high selectivity of aromatic monomers from renewable lignin has been extensively pursued but is still unsuccessful, hampered by the need to efficiently cleave C–O/C–C bonds and inhibit lignin proliferation reactions. Herein, we report a transfer hydrogenolysis protocol using a heterogeneous ZnIn2S4 catalyst driven by visible light. In this process, alcoholic groups (CαH–OH) of lignin act as hydrogen donors. Proliferation of phenolic products to dark substances is suppressed under visible light illumination at low temperature (below 50 °C); formation of a light and transparent reaction solution allows visible light to be absorbed by the catalyst. With this strategy, 71–91% yields of phenols in the conversion of lignin β-O-4 models and a 10% yield of p-hydroxyl acetophenone derivatives from organosolv lignin are achieved. Mechanistic studies reveal that CαH–OH groups of lignin β-O-4 linkage are initially dehydrogenated on ZnIn2S4 to form a "hydrogen pool", and the adjacent Cβ–O bond is subsequently hydrogenolytically cleaved to two monomers by the "hydrogen pool". Thus, the dehydrogenation and hydrogenolysis reaction are integrated in one-pot with lignin itself as a hydrogen donor. This study shows a promising way of supplying phenolic compounds by taking advantages of both renewable biomass feedstocks and photoenergy.

Hydrogenolysis

Organosolv

10.1021/acscatal.7b01043

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Citations (234)

Unraveling the mechanism of the hydrodeoxygenation of propionic acid over a Pt (1 1 1) surface in vapor and liquid phases

Journal of Catalysis (2019)

Wenqiang Yang Rajadurai Vijay Solomon Jianmin Lü Osman Mamun Jesse Q. Bond

Hydrodeoxygenation

10.1016/j.jcat.2019.11.036

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Citations (20)