Shan Cheng

Dalian University of Technology

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Hong Tian

Changsha University of Science and Technology

Qingguang Bao

Dalian University

Jingyao Feng

Dalian University

Xigao Jian

Dalian University of Technology

Nan Li

Dalian University

Yanshan Yin

Changsha University of Science and Technology

Fangyuan Hu

Dalian University of Technology

Yu Qiao

Huazhong University of Science and Technology

Yousi Chen

Dalian University of Technology

Jingchun Huang

Huazhong University of Science and Technology

Cooperative Institutions

Changsha University of Science and Technology

Dalian University of Technology

Huazhong University of Science and Technology

Dalian University

Chinese Academy of Sciences

Tianjin University of Science and Technology

Education Department of Hunan Province

Ministry of Education of the People's Republic of China

Harbin Institute of Technology

University of Science and Technology of China

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The nitrogen transformation and controlling mechanism of NH3 and HCN conversion during the catalytic pyrolysis of amino acid

Fuel (2022)

Hong Tian Yangyue Wei Zhangjun Huang Yingquan Chen Obid Tursunov

Lignocellulosic Biomass

Hydrogen cyanide

10.1016/j.fuel.2022.126215

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Citations (26)

Investigation of the mechanism and interaction of nitrogen conversion during lignin/glutamic acid co-pyrolysis

Journal of Analytical and Applied Pyrolysis (2024)

Hong Tian Xuan Huang Bin Zhao Huang Zhang Shan Cheng

Glutamic acid

10.1016/j.jaap.2024.106795

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Citations (0)

Fluorinated Polyphthalazine Ether Ketone Polymers with Self-Lubricating Function: Experiments and Molecular Dynamics Simulations

ACS Applied Polymer Materials (2025)

Qingguang Bao Yulu Li Ning Wang Shan Cheng Jingyao Feng

Traditional polymers have difficulty meeting the requirements of severe friction conditions such as high speed, heavy load, and high temperature. Therefore, there is an urgent need to develop new polymers with characteristics such as high temperature resistance, high wear resistance, and self-lubrication. In this paper, a series of fluorinated polyphthalazine ether ketone (PFPEK) polymers were synthesized via nucleophilic polycondensation. The structural, thermal, and mechanical properties of the synthesized polymers were characterized. Additionally, the effects of the fluorine content and external friction conditions on the tribological properties of PFPEK were investigated. The introduction of fluorine-containing groups improves the tribological performance of PPEK. The average friction coefficient (μ) and wear coefficient (ω) of PFPEK-F5 are 0.421 and 8.73 × 10–15 m3/Nm, respectively, which are 34.22 and 87.04% lower than those of pure PPEK. Molecular dynamics (MD) simulations were employed to explore the microscopic mechanisms underlying the improved tribological properties. A three-layer model comprising the polymer and Fe atomic layers was developed to analyze changes in the friction mechanism at the molecular level before and after the incorporation of fluorine-containing groups. The analysis of atomic concentration, temperature, velocity distributions, interface binding energy, radial distribution function (RDF), and molecular bond energy during the friction process revealed that the introduction of fluorine-containing groups reduced the polymer–Fe interactions and decreased the adhesion of molecular chains to the contact surface. Consequently, the μ and ω of the polymers were reduced. This study provides theoretical insights into the chemical modification of polymer tribological properties and offers a deeper understanding of the tribological behavior.

Dynamics

10.1021/acsapm.4c03661

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The catalytic effect of alkali and alkaline earth metals on the transformation of nitrogen during phenylalanine pyrolysis

Fuel (2022)

Hong Tian Jiang Zhu Yang Yang Shan Cheng Yanshan Yin

Alkaline earth metal

10.1016/j.fuel.2022.126967

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Citations (13)

Preparation of CF-GO-SiO2 multi-scale reinforcements based on electrostatic interaction: A non-destructive and simple method to construct hybrid interface layers of carbon fiber reinforced thermoplastic resin composites

Composites Part A Applied Science and Manufacturing (2022)

Shan Cheng Nan Li Bing Wang Fangyuan Hu Lishuai Zong

Thermoplastic Composites

Interface (matter)

10.1016/j.compositesa.2022.107053

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Citations (32)

Research on the thermal conductivity and mechanical properties of carbon fiber reinforced thermoplastic composites doped with different sizes carbon nanotubes: A combination of experiments, numerical simulations and multi‐objective optimization

Polymer Composites (2024)

Bing Wang Nan Li Zehao Liu Qingguang Bao Shan Cheng

Abstract While improving the thermal conductivity of composites, single‐size carbon nanotubes (CNT) often degrade their mechanical properties due to the agglomerates. To overcome this limitation, this study reported thermoplastic resin matrix composites synergistically reinforced with small, medium, and large‐size carbon nanotubes (S‐CNT, M‐CNT, and L‐CNT). Using the thermal conductivity ( λ ) and mechanical properties (flexural strength [ F ], compressive strength [ C ] and tensile strength [ T ]) as the response values, we conducted 21 sets of mixing design experiments and developed the associated quadratic term models. Further multi‐objective optimization was carried out for the above response values. Optimized multiscale CNT synergistically modified composites (S‐CNT, M‐CNT, and L‐CNT contents of 1.25, 7.02, and 2.56 wt%) exhibited a λ value of 1.168 W/mK, which was 121% higher than that of pure composite and also superior to the same content of S‐CNT‐ (1.031 W/mK), M‐CNT‐ (1.016 W/mK), and L‐CNT‐modified composites (0.983 W/mK). Additionally, the optimized composite demonstrated excellent mechanical properties ( F = 1482 MPa, C = 848 MPa, and T = 1759 MPa), which were 13%, 11%, and 13% higher than those of the pure composites, respectively, and also surpassed those of the S‐CNT‐, M‐CNT‐and L‐CNT‐modified composites. Highlights Using three different scales of carbon nanotubes modified CF/PPBESK composites. Polynomial modeling of composite's thermal conductivity and mechanical properties. Synergistic interactions between carbon nanotubes to improve the composite's thermal conductivity and mechanical properties.

Thermoplastic Composites

Carbon fibers

10.1002/pc.28563

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Citations (2)

Research on Usefulness of Agricultural Water Saving under Seasonal Steps Agricultural Water Price

Jieshui guan'gai (2006)

Shan Cheng

Beginning with the configuration effect of price on agricultural water resources,the authors analyzed the current price problem of agriculture water saving and prognosticated the inevitable trend of feebased agricultural water in china.Especially,the authors put forward the concept of the seasonal steps agricultural water price and explained its meaning indepth.Finally,based on the research on winter wheat cultivation technique system with unify of water saving,high production,fertilization saving and simpleness,the conclusion that it is possible to practice the seasonal steps agricultural water price on agriculture saving water was got.

Water saving

Water use

Source

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Enhanced mechanical and thermal properties of carbon fiber‐reinforced thermoplastic copoly(phthalazinone ether sulfone ketone) composites

Polymer Composites (2022)

Bing Wang Nan Li Xin Fu Shan Cheng Na Zhao

Abstract This paper presented a facile and effective way to modify copoly(phthalazinone ether sulfone ketone) (PPBESK) resin with SiC nanowires (SiC NWs) to improve the mechanical and thermal properties of CF/PPBESK composites. The results showed that linear SiC NWs with a diameter of about 3 μm and length of about 100 μm were uniformly incorporated into the composite, which greatly enhanced the toughness of the PPBESK resin and the interfacial performance between the CF and PPBESK. Compared with the untreated composites, the ILSS, compressive strength, flexural strength, and through‐thickness thermal conductivity of the SiC NWs treated composites increased by 12.3%, 31.7%, 15.0%, and 40.7%, respectively. In addition, the thermal effusivity of SiC NWs treated composites was also ameliorated. These results will provide a feasible approach for the fabrication of structurally functionally integrated composites.

Sulfone

Compression molding

10.1002/pc.27132

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Citations (8)

Study on the effect of conditioner on NO precursor control behavior from sewage sludge pyrolysis: Focusing on conditioner assessments and in-situ fixation mechanism

Waste Management (2024)

Shan Cheng Ting Yang Jingchun Huang Hong Tian Wei Zhang

Conditioners

Sewage sludge

Soil conditioner

10.1016/j.wasman.2024.08.002

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Citations (1)

Insights into the Synergistic Effect and Inhibition Mechanism of Composite Conditioner on Sulfur-Containing Gases during Sewage Sludge Pyrolysis

Molecules (2024)

Shan Cheng Lianghui Chen Shaoshuo Wang Kehui Yao Hong Tian

Sewage sludge odorous gas release is a key barrier to resource utilization, and conditioners can mitigate the release of sulfur-containing gases. The gas release characteristics and sulfur compound distribution in pyrolysis products under both single and composite conditioning strategies of CaO, Fe2O3, and FeCl3 were investigated. This study focused on the inhibition mechanisms of these conditioners on sulfur-containing gas emissions and compared the theoretical and experimental sulfur content in the products to evaluate the potential synergistic effects of the composite conditioners. The findings indicated that at 650 °C, CaO, Fe2O3, and FeCl3 inhibited H2S release by 35.8%, 23.2%, and 9.1%, respectively. Notably, the composite of CaO with FeCl3 at temperatures ranging from 350 to 450 °C and the combination of Fe2O3 with FeCl3 at 650 °C were found to exert synergistic suppression on H2S emissions. The strongly alkaline CaO inhibited the metathesis reaction between HCl, a decomposition product of FeCl3, and the sulfur-containing compounds within the sewage sludge, thereby exerting a synergistic suppression on the emission of H2S. Conversely, at temperatures exceeding 550 °C, the formation of Ca-Fe compounds, such as FeCa2O4, appeared to diminish the sulfur-fixing capacity of the conditioners, resulting in increased H2S emissions. For instance, the combination of CaO and FeCl3 at 450 °C was found to synergistically reduce H2S emissions by 56.3%, while the combination of CaO and Fe2O3 at 650 °C synergistically enhances the release of H2S by 23.6%. The insights gained from this study are instrumental in optimizing the pyrolysis of sewage sludge, aiming to minimize its environmental footprint and enhance the efficiency of resource recovery.

Sewage sludge

10.3390/molecules29174110

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