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106篇 您的检索式:作者名="WANG Hongping"
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1Review on development of volumetric particle image velocimetry显示文摘Volumetric particle image velocimetry(PIV)is a laser technique measuring three-component velocity field in a volume.Common volumetric PIV techniques are defocusing PIV,multi-view PIV and holographic PIV.Tomographic PIV is an advanced approach of multi-view PIV,which significantly improves the spatial resolution of the measurement by using the multiplicative algebraic reconstruction technique(MART)to reconstruct the particle field.Due to the rapid progress being made in volumetric PIV measurements,this article focuses on introducing the principles of different volumetric PIV methods from aspects of particle reconstruction and velocity reconstruction.Advantages and limitations on applications are elaborated.Issues specific to volumetric PIV regarding illumination,digital imaging,depth of focus,ghost particle and spatial resolution are discussed.GAO Qi WANG HongPing SHEN GongXin 2013Chinese Science Bulletin2013,58,36:16
2Contrasting Effects of Ethylene Biosynthesis on Induced Plant Resistance against a Chewing and a Piercing-Sucking Herbivore in Rice显示文摘乙烯是有在草食动物抵抗上对比效果的压力荷尔蒙。然而,这些差别是否植物特定或草食动物特定,仍然保持未知。我们克隆米饭 1-aminocyclopropane-1-carboxylic 酸(ACC ) synthase 基因, OsACS2,其抄本响应由二个重要害虫的机械伤害和群袭是很快起来调整的:有斑纹的茎 borer (SSB ) Chilo suppressalis 和棕色的 planthopper (BPH ) Nilaparvata lugens。OsACS2 (当交流) 的 Antisense 表示减少了得到的乙烯排放,得到 SSB 的胰岛素朊酶禁止者(TrypPI ) 活动,导致 SSB 的不稳定的版本,和 SSB 抵抗。ACC 的外长的申请恢复了 TrypPI 活动和 SSB 抵抗。与 SSB 相对照, BPH 群袭在当交流线增加了不稳定的排放。因此, BPH 喜欢喂并且在上产卵野类型(WT ) 能被归因于二讨厌的 volatiles, 2-heptanone 和 2-heptanol 的 plantsan 效果,那被当交流植物在更高的数量射出。BPH 蜜露排泄被减少,生来的敌人吸引力在当交流线被提高,导致到 BPH 的更高全面的抵抗。这些结果证明发信号的乙烯对咀嚼和一只穿透吸昆虫在米饭防卫回答和电阻上有形成对照的、草食动物特定的效果,并且可以调停在不同的喂的草食动物之间的抵抗交易在米饭的行业协会。Jing Lu Jiancai Li Hongping Ju Xiaoli Liu Matthias Erb Xia Wang Yonggen Lou 2014Molecular Plant2014,7,11:15
3Rapid Detection of Filoviruses by Real-time TaqMan Polymerase Chain Reaction Assays显示文摘Ebola virus (EBOV) and Marburg virus (MARV) are causative agents of severe hemorrhagic fever with high mortality rates in humans and non-human primates and there is currently no licensed vaccine or therapeutics. To date, there is no specific laboratory diagnostic test in China, while there is a national need to provide differential diagnosis during outbreaks and for instituting acceptable quarantine procedures. In this study, the TaqMan RT-PCR assays targeting the nucleoprotein genes of the Zaire Ebolavirus (ZEBOV) and MARV were developed and their sensitivities and specificities were investigated. Our results indicated that the assays were able to make reliable diagnosis over a wide range of virus copies from 103 to 109, corresponding to the threshold of a standard RNA transcript. The results showed that there were about 1010 RNA copies per milliliter of virus culture supernatant, equivalent to 10,000 RNA molecules per infectious virion, suggesting the presence of many non-infectious particles. These data indicated that the TaqMan RT-PCR assays developed in this study will be suitable for future surveillance and specific diagnosis of ZEBOV and MARV in China.Yi Huang Hongping Wei Yunpeng Wang Zhengli Shi Herve Raoul Zhiming Yuan 2012Virologica Sinica2012,27,5:10
4A single camera volumetric particle image velocimetry and its application显示文摘Volumetric particle image velocimetry(VPIV) refers to a PIV-based technique which can obtain full velocity components in a three-dimensional measurement volume.A new VPIV method with a single lens was developed.A three-vision prism was used to make viewing from different angles using one camera.The technique was tested and successfully applied to a three-dimensional three-component(3D3C) measurement of a zero-net-mass-flux jet flow.The accuracy of the measurement was investigated,specifically in steps of calibration,self-calibration and particle triangulation.Time sequence of a vortex ring development was presented.It was shown that the measurement has high accuracy with validation rate of velocity vector reaching about 95%.The flow with vortex ring passing the measurement volume was studied using both swirl strength and vorticity magnitude criteria.Through comparison,the swirl criterion was found to be superior to the criterion of vorticity in differentiating the rotation motion and the free shear.GAO Qi WANG HongPing WANG JinJun 2012Science China(Technological Sciences)2012,55,9:10
5Wharton's jelly mesenchymal stem cells differentiate into retinal progenitor cells显示文摘Human Wharton's jelly mesenchymal stem cells were isolated from fetal umbilical cord. Cells were cultured in serum-free neural stem cell-conditioned medium or neural stem cell-conditioned medium supplemented with Dkk-1, a Wnt/β catenin pathway antagonist, and LeftyA, a Nodal signaling pathway antagonist to induce differentiation into retinal progenitor cells. Inverted microscopy showed that after induction, the spindle-shaped or fibroblast-like Wharton's jelly mesenchymal stem cells changed into bulbous cells with numerous processes. Immunofluorescent cytochemical staining and reverse-transcription PCR showed positive expression of retinal progenitor cell markers, Pax6 and Rx, as well as weakly down-regulated nestin expression. These results demonstrate that Wharton's jelly mesenchymal stem cells are capable of differentiating into retinal progenitor cells in vitro.Ying Hu Jun Liang Hongping Cui Xinmei Wang Hua Rong Bin Shao Hao Cui 2013Neural Regeneration Research2013,8,19:7
6Polyoxometalate-based silica-supported ionic liquids for heterogeneous oxidative desulfurization in fuels显示文摘With the aim of deep desulfurization, silica-supported polyoxometalate-based ionic liquids were successfully prepared by a one-pot hydrothermal process and employed in heterogeneous oxidative desulfurization of various sulfur compounds. The compositions and structures of the hybrid samples were characterized by various methods such as FT-IR, XPS, Raman,UV–Vis, wide-angle XRD and N_2 adsorption–desorption. The experimental results indicated that the hybrid materials presented a high dispersion of tungsten species and excellent catalytic activity for the removal of 4,6-dimethyldibenzothiophene without any organic solvent as extractant, and the sulfur removal could reach 100.0% under mild conditions.The catalytic performance on various substrates was also investigated in detail. After cycling seven cycles, the sulfur removal of the heterogeneous system still reached 93.0%. The GC-MS analysis results demonstrated that the sulfur compound was first adsorbed by the catalyst and subsequently oxidized to its corresponding sulfone.Ming Zhang Miao Wang Jiapeng Yang Hongping Li Jiaqi Liu Xiao Chen Wenshuai Zhu Huaming Li 2018Petroleum Science2018,15,4:5
7TiO_2/Schwertmannite nanocomposites as superior co-catalysts in heterogeneous photo-Fenton process显示文摘The heterogeneous photo-Fenton reaction is an effective technique in combating organic contaminants for both soil and water remediation,and extensive studies have focused on enhancing its efficiency and reducing its costs.In this work,we developed novel photoFenton catalysts by simply milling commercially available TiO_2(P25)with Schwertmannite(Sh),a natural iron-oxyhydroxysulfate nanomineral.We expect that the photo-generated electrons from TiO_2could continuously migrate to Sh,which then could enhance the separation of electron-hole pairs on TiO_2and accelerate the reduction of Fe(III)to Fe(II)on Sh,leading to high degradation efficiency of the target organic contaminants.SEM and TEM results showed the distribution of TiO_2on Sh surface for the nanocomposites(TiO_2/Sh).Under simulated sunlight irradiation,the much higher content of Fe(II)was determined on TiO_2/Sh than on Sh via a common method in the iron ore,and the consumption of H_2O_2and the production of·OH were more significant in the TiO_2/Sh system than those in the TiO_2and Sh systems.These results well support our hypothesis that the photo-generated electrons could migrate from TiO_2to Sh on the composites,and can also explain the much higher degradation efficiency of Rhodamine B(RhB)in the TiO_2/Sh system.Besides,TiO_2/Sh had lower Fe dissolution as compared with Sh,and retained high catalytic stability after four repeated cycles.Above merits of the TiO_2/Sh composites,in combining with their simple synthesis method and low-cost property,indicated that they should have promising applications as heterogeneous photo-Fenton catalysts.Yanping Zhu Chun Zeng Runliang Zhu Yin Xu Xingyan Wang Huijun Zhou Jianxi Zhu Hongping He 2019Journal of Environmental Sciences2019,31,6:5
8Investigating the Effectiveness of Road-related Mitigation Measures under Semi-controlled Conditions:A Case Study on Asian Amphibians显示文摘Road traffic is the main factor causing the decline in amphibian populations worldwide. The proper design of an amphibian tunnel is one of the most efficient measures to mitigate the negative impacts of road traffic on amphibians. However, no study has investigated the effectiveness of amphibian tunnels under semi-controlled conditions in Asian amphibians. Here, we selected two representative amphibian species, the Chinese brown frog, Rana chensinensis, and the Asiatic toad, Bufo gargarizans, which suffer the most severe road mortality along the roads in Northeast China. We placed experimental arrays of culverts of various sizes(diameters of 1.5, 1, and 0.5 m for circular culverts; side lengths of 1.5, 1, and 0.5 m for box culverts), and substrate type(soil, concrete, and metal) to examine the preferences of both species during the migratory season between May and September in 2016 and 2017. The results revealed that the Chinese brown frog preferred mid-and large-sized culverts as well as soil culverts. We concluded that culverts with a side length ≥ 1 m, lined with soil, and accompanied by a ≥ 0.4 m high guide drift fence and ≤ 45° gradient on the roadside ditch wall would best facilitate road crossings for both species and likely for other amphibian species in Northeast China.Yun WANG Jiayu LAN Hongping ZHOU Lei GUAN Yudi WANG Yongshun HAN Jiapeng QU Syed Asifullah SHAH Yaping KONG 2019Asian Herpetological Research2019,10,1:4
9Thermochemical Sulfate Reduction in the Tazhong District,Tarim Basin,Northeast China:Evidence from Formation Water and Natural Gas Geochemistry显示文摘形成水和天然气地球化学在的系统的分析中央在迟了的阶段的煤气的侵略被天然气的 H2S 和 CO2 的内容的增加伴随的 Tarim 盆( CUTB )表演高举,由形成高全部的溶解固体形成流水,由 HCO 的内容的增加? 3 ,相对 Cl ?,由第二家庭离子的增加(Ca2+,Mg2+,Sr2+和Ba2+)并且由 SO2 的内容的减少? 4 ,相对 Cl ?。上述现象能仅仅由 thermochemical 硫酸盐减小(TSR ) 的方法被解释。TSR 经常发生在油和水的转变地区并且经常在下列反应公式被描述:CH+CaSO4+H-2OH2S+CO2+CaCO3。(1 ) 溶解了 SO2 ? 当 H2S 和 CO2 被产生时, 4 在上述反应在形成水里被消费,导致 SO2 的减少 ? 4 在形成水和在天然气的 H2S 和 CO2 的增加里。如果形成水存在,产生 CO2 将继续与碳酸盐反应形成酸式碳酸盐,它能在形成水里被溶解,因此导致 Ca2+ 和 HCO 的丰富 ? 3。上述反应能被下列方程描述:CO2+H2O+CaCO3Ca2++2HCO ? 3。在 CUTB 的寒武纪、更低的奥陶纪的 stratigraphic 温度超过了 120 整瑣湯捩栠獩潴祲漠?桚橥慩杮?畆楪湡?湡?楊湡硧?牰癯湩散?景猠畯桴?楨慮椠?浩潰瑲湡?潦?湵敤獲慴摮湩?桴?整瑣湯捩攠潶畬楴湯漠?潓瑵?桃湩?畢?瑩?慭浧瑡捩愠瑣癩瑩?瀠瑥潲敧敮楳?猠牴瑡杩慲桰捩猠煥敵据?景琠敨?浡慩獮慨?片畯?獩猠楴汬猠牴湯汧?潣瑮潲敶獲慩??牥?敷瀠敲敳瑮渠睥猠湥楳楴敶栠杩?敲潳畬楴湯椠湯洠捩潲瀭潲敢???偍??A稠物潣?敧'覡睖珱K杯捩污搠瑡?潦?桴?慍業湡桳湡?潲灵愠摮瀠瑥潲牧灡楨慣?慤慴琠?潣獮牴楡?桴?...桴?XIANG Caifu PANG Xiongqi WANG Jianzhong LI Qiming WANG Hongping ZHOU Changqian YANG Haijun 2010Acta Geologica Sinica(English Edition)2010,84,2:4
10Simple synthesis of sandwich-like SnSe2/rGO as high initial coulombic efficiency and high stability anode for sodium-ion batteries显示文摘Metal selenides owing to their high theoretical capacity and good conductivity are considered as one of the potential candidates for the anode materials of sodium-ion batteries(SIBs).However,their practical applications are greatly restricted by the poor cycling performances and complicated synthesis methods.In this work,a sandwich-like Sn Se2/reduced graphene oxide(r GO)composite with a small amount of r GO(7.3%)is synthesized by a simple one-pot solvothermal technique.The as-synthesized Sn Se2/r GO shows improved initial coulombic efficiency(ICE)of 73.7%,high capacity of 402.0 m Ah g-1 after 150 cycles at 0.1 A g-1 with a retention of 86.2%and outstanding rate performances.The abundant Sn-O-C bonds of synthesized material not only accelerate the charge transfer at the interface but also enhance the mechanical strength to accommodate volume variation and prevent active material loss during cycling.Moreover,the compact structure leads to thin solid electrolyte interface(SEI)so that high initial coulombic efficiency was obtained.Furthermore,full cells are assembled to test its potential application.This work offers a simple method to synthesize Sn Se2/r GO as a candidate anode for SIBs.Tingting Wang Kaiwei Yang Juan Shi Shangrui Zhou Liwei Mi Hongping Li Weihua Chen 2020Journal of Energy Chemistry2020,29,7:4
11Dual-basis reconstruction techniques for tomographic PIV显示文摘As an inverse problem, particle reconstruction in tomographic particle image velocimetry attempts to solve a large-scale underdetermined linear system using an optimization technique. The most popular approach, the multiplicative algebraic reconstruction technique(MART), uses entropy as an objective function in the optimization. All available MART-based methods are focused on improving the efficiency and accuracy of particle reconstruction. However, those methods do not perform very well on dealing with ghost particles in highly seeded measurements. In this report, a new technique called dual-basis pursuit(DBP), which is based on the basis pursuit technique, is proposed for tomographic particle reconstruction. A template basis is introduced as a priori knowledge of a particle intensity distribution combined with a correcting basis to enable a full span of the solution space of the underdetermined linear system. A numerical assessment test with 2D synthetic images indicated that the DBP technique is superior to MART method, can completely recover a particle field when the number of particles per pixel(ppp) is less than 0.15, and can maintain a quality factor Q of above 0.8 for ppp up to 0.30. Unfortunately, the DBP method is difficult to utilize in 3D applications due to the cost of its excessive memory usage. Therefore, a dual-basis MART was designed that performed better than the traditional MART and can potentially be utilized for 3D applications.YE ZhiJian GAO Qi WANG HongPing WEI RunJie WANG JinJun 2015Science China(Technological Sciences)2015,58,11:4
12Source of propagules of the fouling green macroalgae in the Subei Shoal,China显示文摘Since 2007,large-scale green tides dominated by Ulva prolifera consecutively bloomed in the Yellow Sea and caused great economic losses.The fouling U.prolifera on the Pyropia yezoensis aquaculture rafts in the Subei Shoal was regarded as the major source of the floating biomass.However,it was still unclear about the seed source of fouling green macroalgae attached on the rafts.In this study,the field surveys and the indoor experiments were conducted to reveal the source of propagules of the fouling green macroalgae on the rafts and to study the anti-fouling material for P.yezoensis aquaculture rafts which could possibly be a feasible strategy to control the green tides in the Yellow Sea.The results showed that(1) micro-propagules of several green macroalgal species,including U.prolifera,U.linza,U.compressa,U.flexuosa,and Blidingia sp.coexisted in the waters and sediments in the Subei Shoal and their proportion remarkably changed over time;(2) the bamboo poles with peeling treatment could significantly reduce the amount of U.prolifera micro-propagules attached.This study confirmed that the micro-propagules distributed in the Subei Shoal area were the precursors of the green tides,and provided a feasible method to control the Yellow Sea large-scale green tides at the beginning.SONG Wei JIANG Meijie WANG Zongling WANG Hongping ZHANG Xuelei FU Mingzhu 2018Acta Oceanologica Sinica2018,37,4:3
13Electrochemical corrosion behavior of composite coatings of sealed MAO film on magnesium alloy AZ91D显示文摘Hongping Duan Keqin Du Chuanwei Yan Fuhui Wang 2005Electrochimica Acta2005,,14:3
14Amorphous TiO_2-supported Keggin-type ionic liquid catalyst catalytic oxidation of dibenzothiophene in diesel显示文摘Supported ionic liquid(IL) catalysts [C_nmim]_3PMo_(12)O_(40)/Am TiO_2(amorphous TiO_2) were synthesized through a one-step method for extraction coupled catalytic oxidative desulfurization(ECODS) system. Characterizations such as FTIR, DRS,wide-angle XRD, N_2 adsorption–desorption and XPS were applied to analyze the morphology and Keggin structure of the catalysts. In ECODS with hydrogen peroxide as the oxidant, it was found that ILs with longer alkyl chains in the cationic moiety had a better effect on the removal of dibenzothiophene. The desulfurization could reach 100% under optimal conditions, and GC–MS analysis was employed to detect the oxidized product after the reaction. Factors affecting the desulfurization efficiencies were discussed, and a possible mechanism was proposed. In addition, cyclic experiments were also conducted to investigate the recyclability of the supported catalyst. The catalytic activity of [C_(16)mim]_3 PMo_(12)O_(40)/Am TiO_2 only dropped from 100% to 92.9% after ten cycles, demonstrating the good recycling performance of the catalyst and its potential industrial application.Zhendong Yu Donghui Wang Suhang Xun Minqiang He Ruliang Ma Wei Jiang Hongping Li Wenshuai Zhu Huaming Li 2018Petroleum Science2018,15,4:3
15Lithofacies palaeogeography as a guide to petroleum exploration显示文摘Lithofacies palaeogeography as a guide to petroleum exploration is a very important topic.By using the following five exploration examples,this paper discusses the guide of lithofacies palaeogeography or of sedimentary facies to petroleum exploration.These examples include the dolostone of the Lower Ordovician Majiagou Formation 5 in the Ordos area,the Donghe Sandstone of the Upper Devonian and Lower Carboniferous in the Tarim Basin,the reef of the Upper Permian Changxing Formation in the Sichuan Basin,the oolitic bank of the Lower Triassic Feixianguan Formation in the Sichuan Basin,and the lacustrine delta sediments and gravity flow sediments of the Middle and Upper Triassic Yanchang Formation in the Ordos Basin.Feng Zengzhao Bao Hongping Jia Jinhua Wang Yigang Deng Xiuqin 2013Journal of Palaeogeography2013,2,2:3
16SDS-PAGE study on photooxidation damage of lysozyme induced by riboflavin显示文摘The photooxidation damage of lysozyme under 315-375 nm irradiation in the presence of riboflavin was studied by using sodium dodecyl sulfate-polyacrylamide gel electrophoresis(SDS-PAGE).Indica- tions showed that the mechanisms and products of oxidative damage were relative to the concentra- tion of riboflavin,the time of irradiation and the ambience.The type I process was examined in a nitrogen saturated solution,whereas both type I and type II were observed in an aerobic atmosphere and type II was the dominant process.The study also suggested that antioxidants,such as melatonin, can reduce the damage of lysozyme effectively.ZHANG ZhaoXia ZHAO HongWei ZHU HongPing GE Min WANG WenFeng YAO SiDe LI WenXin 2007Science China Chemistry2007,50,1:3
17Review of Text Classification Methods on Deep Learning显示文摘Text classification has always been an increasingly crucial topic in natural language processing.Traditional text classification methods based on machine learning have many disadvantages such as dimension explosion,data sparsity,limited generalization ability and so on.Based on deep learning text classification,this paper presents an extensive study on the text classification models including Convolutional Neural Network-Based(CNN-Based),Recurrent Neural Network-Based(RNN-based),Attention Mechanisms-Based and so on.Many studies have proved that text classification methods based on deep learning outperform the traditional methods when processing large-scale and complex datasets.The main reasons are text classification methods based on deep learning can avoid cumbersome feature extraction process and have higher prediction accuracy for a large set of unstructured data.In this paper,we also summarize the shortcomings of traditional text classification methods and introduce the text classification process based on deep learning including text preprocessing,distributed representation of text,text classification model construction based on deep learning and performance evaluation.Hongping Wu Yuling Liu Jingwen Wang 2020Computers, Materials & Continua2020,,6:3
18Effect of Honghua (Flos Carthami) on nitric oxide production in RAW 264.7 cells and α-glucosidase activity显示文摘OBJECTIVE: To study the effects of extracts from Honghua(Flos Carthami) on lipopolysaccharide induced nitric oxide(NO) production in RAW 264.7cells and the influence of the extracts on yeastα-glucosidase activity. The total flavonoid content of the extracts was also determined.METHODS: Cytotoxicity of the extracts to RAW264.7 cells was evaluated by the ATPlite? method.Inhibitory effects of the extracts on NO production were evaluated by Griess assay. Curcumin was used as a positive control. Screening of extracts for potential α-glucosidase inhibitors was done by a fluorometric assay.The assay was based on the hydrolysis of 4-methylumbelliferyl-a-D-glucopyranoside to form the fluorescent product, 4-methylumbelliferone. Acarbose was used as a positive control. The total flavonoid content was tested using kaempferol as the standard.RESULTS: There were significant inhibitory effects on NO production when the extracts were 25-100μg/mL(P<0.05) and curcumin was 2-4 μg/mL(P<0.001). The extracts showed an inhibitory effect onα-glucosidase activity at the concentrations of15.6-125 μg/mL with a half maximal(50%) inhibitory concentration(IC50) of(32.8±5.7) μg/mL, compared with the IC 50 of acarbose at(1.8±0.4) μg/mL.There was a significant difference between the two IC50values(P<0.001). The total content of flavonoids per gram of dried herb was1.14 mg.CONCLUSION:Honghua(Flos Carthami)showed in hibitory effects on NO production in activated RAW264.7 macrophage cells and an inhibitory effect on yeast α-glucosidase. There might be a relationship between these pharmacological effects and its flavonoid content.Hui Liao Linda Banbury Hongping Liang Xiaomin Wang Xiaokai Lü Ling Hu Jin Wu 2014Journal of Traditional Chinese Medicine2014,34,3:2
19Reliable and Efficient Agrobacterium tumefaciens-Mediated Genetic Transformation of Dianthus spiculifolius显示文摘Dianthus spiculifolius is a perennial herbaceous flower with strong environmental adaptability and is an important ornamental ground cover plant.In this study,seeds of D.spiculifolius were used as explants for callus induction,adventitious bud differentiation,and rooting by adding different concentrations of 2,4-dichlorophenoxyacetic acid(2,4-D),6-benzyl aminopurine(6-BA),and naphthaleneacetic acid(NAA)to Murashige and Skoog medium.The calli generated were co-cultured with Agrobacterium tumefaciens EHA105 containing pBI121-GUS or pBI121-GFP plasmids for 30 min,and transgenic regenerated plants were obtained by kanamycin(30mg·L^−1)screening.RT-PCR confirmed the stable expression of the exogenous GUS and GFP genes in the D.spiculifolius.Theβ-glucuronidase(GUS)histochemical staining confirmed GUS gene expression in transgenic calli,adventitious buds,and regenerated plants of D.spiculifolius.The green fluorescent protein(GFP)visual analysis showed GFP gene expression in transgenic calli.Furthermore,subcellular localization analysis showed that the three organelle marker proteins were not only successfully expressed but also accurately localized to their corresponding organelles in D.spiculifolius callus cells.These results indicated a successful establishment of a reliable and efficient A.tumefaciens-mediated genetic transformation system,which will contribute to functional gene research and genetic improvement of D.spiculifolius.Jingang Wang Shiyue Liu Hongping Ma Ye Tao Shuang Feng Shufang Gong Jinzhu Zhang Aimin Zhou 2020Horticultural Plant Journal2020,6,3:2
20A comparative study of the extractive desulfurization mechanism by Cu(Ⅱ)and Zn-based imidazolium ionic liquids显示文摘A comparative study of the extractive desulfurization(EDS) mechanism by Cu(Ⅱ) and Zn-based ILs([C_4mim]_2[MCl_4], M ? Cu(Ⅱ) or Zn)has been performed. It is found that the p–p interaction and C-H/p interaction play important roles in EDS for both Cu(Ⅱ) and Zn-based ILs,which is different from Al, Fe-based ILs. In the gas phase models, the interaction energy between Zn-based ILs and dibenzothiophene(DBT) is stronger than the interaction energy of Cu(Ⅱ)-based ILs. In order to consider the solvent effect, a generic ionic liquid of solvation model has been implemented, which is few considered in the previous calculations of EDS. It is interesting to find that the gap of interaction energies between Cu(Ⅱ), Zn-based ILs and DBT are reduced when the solvent effect is considered. In addition, by combined discussion of currently theoretical and experimental evidences for metal-based ILs with different compositions, we firstly propose that the EDS performance should be influenced by the balance of the contribution of cation, metal-based anion, metal chlorides and the viscosity.Hongping Li Beibei Zhang Wei Jiang Wenshuai Zhu Ming Zhang Chao Wang Jingyu Pang Huaming Li 2019Green Energy & Environment2019,4,1:2
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