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| 1 | Synthesis of polymeric ionic liquids material and application in CO2 adsorption显示文摘We synthesized one quaternary ammonium polymeric ionic liquids(PILs)P[VBTHEA]Cl and three imidazolium PILs of P[VEIm]Br, P[VEIm]BF_4, P[VEIm]PF_6 by free-radical polymerization in solution. These PILs were characterized by FT-IR,~1 H-NMR,^(13)C-NMR, TGA, XRD and SEM. Their CO_2 adsorption capacities were measured under different pressures and temperatures by constant-volume technique. It was observed that quaternary ammonium PILs of P[VBTHEA]Cl have higher adsorption capacity for CO_2 than those imidazolium PILs, following P[VBTHEA]Cl > P[VEIm]PF_6> P[VEIm]BF_4> P[VEIm]Br, which may be ascribed to higher positive charge density on ammonium cation than that on imidazolium cation and thus stronger interaction with CO_2, consistent with the results from dual-mode adsorption model that ammonium PILs have much higher CO_2 bulk absorption than imidazolium PILs. CO_2 adsorption capacity of P[VBTHEA]Cl is 9.02 mg/g under 295 K and 1 bar, which is comparable to that of some other PILs, and is much higher than that of the corresponding ILs monomer. These PILs have good adsorption selectivity for CO_2 over N_2 and regeneration efficiency. | Haiying Ran Jiexin Wang Ahmed A.Abdeltawab Xiaochun Chen Guangren Yu Yinghao Yu | 2017 | Journal of Energy Chemistry2017，26，5： | 4 |
| 2 | Computational functionality-driven design of semiconductors for optoelectronic applications显示文摘The rapid development of the semiconductor industry has motivated researchers passion for accelerating the discovery of advanced optoelectronic materials.Computational functionality-driven design is an emerging branch of material science that has become effective at making material predictions.By combining advanced solid-state knowledge and high-throughput firstprinciples computational approaches with intelligent algorithms plus database development,experts can now efficiently explore many novel materials by taking advantage of the power of supercomputer architectures.Here,we discuss a set of typical design strategies that can be used to accelerate inorganic optoelectronic materials discovery from computer simulations:In silico computational screening;knowledge-based inverse design;and algorithm-based searching.A few representative examples in optoelectronic materials design are discussed to illustrate these computational functionality-driven modalities.Challenges and prospects for the computational functionality-driven design of materials are further highlighted at the end of the review. | Zhun Liu Guangren Na Fuyu Tian Liping Yu Jingbo Li Lijun Zhang | 2020 | InfoMat2020，2，5： | 4 |
| 3 | N-methyl-2-pyrrolidonium-based Br?nsted-Lewis acidic ionic liquids as catalysts for the hydrolysis of cellulose显示文摘We experimentally studied the catalytic performances of a series of Br?nsted-Lewis acidic N-methyl-2-pyrrolidonium metal chlorides([Hnmp]Cl/MCl_x, where M=Fe, Zn, Al, or Cu) for the hydrolysis of microcrystalline cellulose(MCC) and cotton to produce reducing sugar. A variety of factors, such as temperature, time, ionic liquid(IL) species, IL dosage, and the concentration of the metal chloride were investigated. [Hnmp]Cl/FeCl_3 presented the best hydrolysis performance, affording a 98.8% yield of total reducing sugar from MCC(1 h, 100 °C, 0.1 g MCC, 0.2 g acidic IL, 2.0 g [Bmim]Cl as solvent), which is better than or comparable to results previously obtained with other –SO_3H functionalized acidic ILs. The hydrolysis performances of [Hnmp]Cl/MClx were rationalized using density functional theory calculations, which indicated that interactions between the metal chlorides and the cellulose, including charge-transfer interactions are important in the hydrolysis of cellulose and degradation of glucose. This work shows that Br?nsted-Lewis acidic ILs are potential catalysts for the hydrolysis of cellulose to produce sugar. | Zheng Zhao Na Li Abdul Waheed Bhutto Ahmed A. Abdeltawab Salem S. Al-Deyab Guangqing Liu Xiaochun Chen Guangren Yu | 2016 | Science China Chemistry2016，59，5： | 3 |
| 4 | Extractive denitrogenation of shale oil using imidazolium ionic liquids显示文摘The potential applications of shale oil as a substitute energy source are adversely influenced due to its high nitrogen content.In this work,four imidazolium ionic liquids(ILs),i.e.,1-butyl-3-methylimidazolium chloride([Bmim]Cl),1-butyl-3-methylimidazolium acetate([Bmim]Ac),1-butyl-3-methylimidazolium acetate/ZnAc2([Bmim]Ac/ZnAc2)and 1-butyl-3-methylimidazolium chloride/ZnAc2([Bmim]Cl/ZnAc2),were used to extract the basic nitrides and neutral nitrides from shale oil.The influence of extraction time,temperature,properties of N-compounds,ILs structure,mass ratio of IL/oil,multiple cycles of denitrogenation,physical mixing of ILs and ILs recyclability on extractive denitrogenation was systematically investigated.The denitrogenation performance of all ILs was determined and investigated from micro-level view withσ-profile.It was observed that,ILs composed of anions with weaker HB acceptor capacity,have the higher N-extraction efficiency to the neutral nitrogen compounds with weaker HB acceptor capacity.More than 96%N-extraction efficiency was achieved at the end of a single extraction cycle for time<10 min under 40℃C and 1:1 of IL:oil(w/w),especially 100%N-extraction efficiency was realized for carbazole and indole.The N-extraction efficiency up to 60.1%and 53.7%for real shale oil was realized by[Bmim]Ac and[Bmim]Ac/ZnAc2,respectively,which are about 10%better than other non-hydrodenitrogenation technologies.Moreover,[Bmim]Ac and[Bmim]Ac/ZnAc2 exhibited almost the same extractive denitrogenation performance after regeneration.This work has developed a new approach to lessen the nitrogen content of shale oil effectively and economically. | Shurong Gao Shengfan Fang Ruozheng Song Xiaochun Chen Guangren Yu | 2020 | Green Energy & Environment2020，5，2： | 3 |
| 5 | Diopside-based glass- ceramics from blSW fly ash and bottom ash 显示文摘 | Guangren Qian Yu Song Cangang Zhang | 2006 | Waste Management2006，26，： | 1 |
| 6 | Diopside-based glass-ceramics from MSW fly ash and bottom ash显示文摘 | Guangren Qian Yu Song Cangang Zhang Yuqin Xia Houhu Zhang Pengcheong Chui | 2006 | Waste Management2006，，12： | 1 |
| 7 | Deep oxidative desulfurization of diesel fuels by acidic ionic liquids显示文摘 | Yu Guangren Zhao Jingjing Song Dandan | 2011 | Ind Eng Chem Res2011，50，11： | 1 |
| 8 | Deep Oxidative Desulfurization of Diesel Fuels by Acidic Ionic Liquids显示文摘 | Guangren Yu Jingjing Zhao Dandan Song | 2011 | Ind Eng Chem Res2011，50，11： | 1 |
| 9 | Isobaric vapor–liquid equilibrium for methanol<ce:hsp sp='0.25'/>+<ce:hsp sp='0.25'/>dimethyl carbonate<ce:hsp sp='0.25'/>+<ce:hsp sp='0.25'/>phosphoric-based ionic liquids显示文摘 | Fufeng Cai Xinying Wu Chang Chen Xiaochun Chen Charles Asumana Md Razibul Haque Guangren Yu | 2013 | Fluid Phase Equilibria2013，，： | 1 |
| 10 | Deep desulfurization of fuel oils using low - viscosity 1 - ethyl - 3 - methylimidazolium dicyanamide ionic liquid 显示文摘 | Yu Guangren Li Xi Liu Xinxing | 2011 | Ing Eng Chem Res2011，50，4： | 1 |
| 11 | Diopside-based glass-ceramics from MSW fly ash and bottom ash显示文摘 | Guangren Qian Yu Song Cangang Zhang | 2006 | Waste Management2006，20，2： | 1 |
| 12 | Deep Oxi- dative Desulfurization of Diesel Fuel by Acidic Ionic Liquids 显示文摘 | Yu Guangren Zhao Jingjing Song Dandan | 2011 | Ind Eng Chem Res2011，50，11： | 1 |
| 13 | A coupled catalyst composed of CoFe_(2)O_(4) magnetic nanoparticle and[HMIM]Br-FeCl_(3) to intensify the oxidative desulfurization of FCC diesel显示文摘Ionic liquids have been extensively studied as solvents or catalysts for oxidative desulfurization(ODS)of diesel fuel,but it is still a challenge to reduce the desulfurization time and steps.In this work,a new highly efficient desulfurization system composed of CoFe_(2)O_(4) magnetic nanoparticle,[HMIM]Br-FeCl_(3) and H_(2)O_(2) was developed for the ODS of FCC diesel fuel.The desulfurization performances were investigated including desulfurization time,temperature,volume ratio of IL/oil,O/S molar ratio,dosage of CoFe_(2)O_(4),FeCl_(3) content in ILs,regeneration,and reuse of catalyst and solvent.Owing to the coupled catalytic roles of CoFe_(2)O_(4) magnetic nanoparticle and[HMIM]Br-FeCl_(3),where Co2t and Fe3t interact with H_(2)O_(2) to produce ·OH radical that converts S-compounds into sulfone and sulfoxide compounds,such a desulfurization system is highly effective in removing S-compound in diesel fuel.The S-content in FCC diesel fuel was reduced from the original 272.8 ppm to 0.5 ppm with 99.82%S-removal efficiency after one step within 8 minunder the optimal conditions of 25℃,8 min,V(IL/oil)=1:10,O/S=20,5 wt%CoFe_(2)O_(4) dosage and n([HMIM]Br)/n(FeCl_(3))=1:1;the desulfurization performance is much better in desulfurization time and steps than other desulfurization systems reported previously.The desulfurization system can be regenerated and reused without remarkable loss of desulfurization activity.A desulfurization mechanism was proposed. | Yanlin Zhang Xinyu Zhang Guangren Yu Xiaochun Chen Ahmed A.Abdeltawab Hany El-Hamshary | 2021 | Green Chemical Engineering2021，2，4： | 0 |
| 14 | A cellular automata framework for porous electrode reconstruction and reaction-diffusion simulation显示文摘Due to the high charge transfer efficiency compared to that of non-porous materials,porous electrodes with larger surface area and thinner solid pore walls have been widely applied in the lithium-ion battery field.Since the capacity and charge-discharge efficiency of batteries are closely related to the microstructure of porous materials,a conceptually simple and computationally efficient cellular automata(CA)framework is proposed to reconstruct the porous electrode structure and simulate the reactiondiffusion process under the irregular solid-liquid boundary in this work.This framework is consisted of an electrode generating model and a reaction-diffusion model.Electrode structures with specific geometric properties,i.e.,porosity,surface area,size distribution,and eccentricity distribution can be constructed by the electrode generating model.The reaction-diffusion model is exemplified by solving the Fick's diffusion problem and simulating the cyclic voltammetry(CV)process.The discharging process in the lithium-ion battery are simulated through combining the above two CA models,and the simulation results are consistent with the well-known pseudo-two-dimensional(P2D)model.In addition,a set of electrodes with different microstructures are constructed and their reaction efficiencies are evaluated.The results indicate that there is an optimum combination of porosity and particle size for discharge efficiency.This framework is a promising one for studying the effect of electrode microstructure on battery performance due to its fully synchronous computation way,easy handled boundary conditions,and free of convergence concerns. | Jindong Dai Chi Zhai Jiali Ai Guangren Yu Haichao Lv Wei Sun Yongzhong Liu | 2023 | Chinese Journal of Chemical Engineering2023，60，8： | 0 |
| 15 | Parametric control systems design with applications in missile control显示文摘This paper considers parametric control of high-order descriptor linear systems via proportional plus derivative feedback. By employing general parametric solutions to a type of so-called high-order Sylvester matrix equations, complete parametric control approaches for high-order linear systems are presented. The proposed approaches give simple complete parametric expressions for the feedback gains and the closed-loop eigenvector matrices, and produce all the design degrees of freedom. Furthermore, important special cases are particularly treated. Based on the proposed parametric design approaches, a parametric method for the gain-scheduling controller design of a linear time-varying system is proposed and the design of a BTT missile autopilot is carried out. The simulation results show that the method is superior to the traditional one in sense of either global stability or system performance. | DUAN GuangRen YU HaiHua TAN Feng | 2009 | Science in China(Series F)2009，52，11： | 0 |
| 16 | Biodegradation of waste refrigerator polyurethane by mealworms显示文摘Refrigerator insulation replacement results in discarding a large amount of waste refrigerator polyurethane(WRPU).Insect larvae like mealworms have been used to biodegrade pristine plastics.However,knowledge about mealworms degrading WRPU is scarce.This study presents an in-depth investigation of the degradation of WRPU by mealworms using the micro-morphology,composition,and functional groups of WRPU and the egested frass characteristics.It was found that the WRPU debris in frass was scoured,implying that WRPU was ingested and degraded by mealworms.The carbon content of WRPU-based frass was lower than that of WRPU,indicating that mealworms utilized WRPU as a carbon source.The urethane groups in WRPU were broken,and benzene rings’C=C and C–H bonds in the isocyanate disappeared after being ingested by mealworms.Thermal gravimetric-differential thermal gravimetry analysis showed that the weight loss temperature of WRPU-based frass was 300°C lower than that of WRPU,indicating that the thermal stability of WRPU deteriorated after being ingested.The carbon balance analysis confirmed that carbon in the ingested WRPU released as CO_(2) increased from 18.84%to 29.80%,suggesting that WRPU was partially mineralized.The carbon in the mealworm biomass ingesting WRPU decreased.The possible reason is that WRPU does not supply sufficient nutrients for mealworm growth,and the impurities and odor present in WRPU affect the appetite of the mealworms.The microbial community analysis indicated that WRPU exerts a considerable effect on the gut microorganism of mealworms.These findings confirm that mealworms degrade WRPU. | Ping Zhu Shuangshuang Gong Mingqiang Deng Bin Xia Yazheng Yang Jiakang Tang Guangren Qian Fang Yu Ashantha Goonetilleke Xiaowei Li | 2023 | Frontiers of Environmental Science & Engineering2023，17，3： | 0 |
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