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Chinese Journal of Chemical Engineering 2023年第3期55卷 202-211页

作者： bowen jiang Jia Liu Guoqiang Yang Zhibing Zhang School of Chemistry and Chemical Engineering Nanjing UniversityNanjing 210093China

A novel series of halogen free, hydroxyl group containing poly(ionic liquid)s(PILs) was first synthesized from glycerol dimethyl acrylate(GDA) and 1-vinyl imidazole(1-VIM) through free radical polymerization, follow by an alkylation step and an ion-exchange procedure to form the final imidazolium hydrogen carbonate heterogenous catalyst poly(HCO_(3)-OH-n). The chemical and physical properties were investigated by varying the monomer ratio between GDA and 1-VIM. Among them, poly(HCO_(3)-OH-2) exhibited the highest catalytic activity for CO_(2)cycloaddition, with the yield of chloropropene carbonate 90% under mild conditions(80℃, 0.1 MPa, 12 h, 0.15 g catalyst for 32 mmol epichlorohydrin) in the absence of any cocatalyst, metal or solvent. A range of substrates with good to excellent yields under atmosphere was obtained. The poly(HCO_(3)-OH-n) catalyst is collectable and still remains acceptable catalytic activity after six runs. Finally, a preliminary kinetic is calculated on the basis of poly(HCO_(3)-OH-2) with the activation energy value of 79.5 kJ·mol^(-1). This study highlights that the poly(HCO_(3)-OH-n) enable to reach efficient CO_(2) conversion under mild conditions.

关键词： Ion exchange Carbon dioxide Polymerization Heterogeneous catalyst Kinetic modeling

Attitude-adjusting dynamical behavior of cubic rover on low-gravity testbed

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Astrodynamics 2024年第1期8卷 149-159页

作者： bowen jiang Muhammad Talha Hussain Xiangyuan Zeng School of Automation Beijing Institute of TechnologyBeijing100081China

Cubic rovers that traverse by hopping systems are promising in low-gravity *** several analyses of the control methods and mobility of the cubic rover are available,investigations of its attitude-adjusting behavior are still *** study derives the dynamic equations of the two attitude-adjusting modes of the cubic rover,referred to as walking and *** relationships between the speed threshold and rotation angle of the cubic rover were investigated in both rigid and regolith environments using a self-designed low-gravity *** studies were conducted by considering the experimental and simulated *** results of this study can be interesting for roving mission planning when exploring planetary moons and small celestial bodies.

关键词： low-gravitytestbed attitude-adjusting motion cubic rover experimental study

Self-assembled nanoformulations of paclitaxel for enhanced cancer theranostics

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Acta Pharmaceutica Sinica B 2023年第8期13卷 3252-3276页

作者： Qing Pei bowen jiang Dengyuan Hao Zhigang Xie State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China

Chemotherapy has occupied the critical position in cancer therapy,especially towards the post-operative,advanced,recurrent,and metastatic ***(PTX)-based formulations have been widely used in clinical practice,while the therapeutic effect is far from satisfied due to off-target toxicity and drug *** caseless multi-components make the preparation technology complicated and aggravate the concerns with the excipients-associated *** self-assembled PTX nanoparticles possess a high drug content and could incorporate various functional molecules for enhancing the therapeutic *** this work,we summarize the self-assembly strategy for diverse nanodrugs of ***,the advancement of nanodrugs for tumor therapy,especially emphasis on monochemotherapy,combinational therapy,and theranostics,have been ***,the challenges and potential improvements have been briefly spotlighted.

关键词： Paclitaxel Self-assembly Homodimeric prodrug Heterodimeric prodrug Poly-prodrug Chemotherapy Combinational therapy Theranostics

Bifunctional LiI additive for poly(ethylene oxide)electrolyte with high ionic conductivity and stable interfacial chemistry

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Journal of Energy Chemistry 2022年第8期31卷 218-224,I0007页

作者： Haonan Wang Tianyi Hou Hang Cheng bowen jiang Henghui Xu Yunhui Huang School of Materials Science and Engineering Huazhong University of Science and TechnologyWuhan 430000HubeiChina

The development of polymer-based solid-state batteries is severely limited by the low ionic conductivity of solid polymer electrolyte and the instable interface between polymer electrolyte and Li-metal *** this work,lithium iodide(LiI)as a bifunctional additive was introduced into the poly(ethylene oxide)(PEO)-based electrolyte to improve the ionic conductivity and to construct a stable interphase at the Li/PEO interface.I-anions offer a strong electrostatic interaction with hydrogen atoms on PEO chains(HPEO)and forming massive I–H bonds that cross-link PEO chains,decrease crystallinity of PEO,and thus improve Li~+interchain *** addition,LiI participates in the formation of an inorganic-rich interphase layer,which decreases the energy barrier of Li+transport across the interface and thus inhibits the growth of lithium *** a result,the composite PEO electrolyte with 2 wt%LiI(PEO-2 LiI)presents a very high ionic conductivity of 2.1×10^(-4) S cm-1 and a critical current density of 2.0 m A cm^(-2) at 45°*** symmetric cell with this PEO-2 LiI electrolyte exhibits a long-term cyclability over 600 h at 0.2 m A cm^(-2).Furthermore,solid-state LiFePO_(4) and LiNi_(0.8)Mn_(0.1)Co_(0.1)O_(2) batteries with the PEO-2 LiI electrolyte show an impressive electrochemical performance with outstanding cycling stability and rate capability at 45°C.

关键词： Solid-state battery LiI Electrostatic interaction Crystallinity Interface

Micro-interface enhanced mass transfer sodium carbonate absorption carbon dioxide reaction

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Chinese Journal of Chemical Engineering 2023年第12期64卷 208-223页

作者： Hu Shen Yingyu Xu Jigang An bowen jiang Jinnan Sun Guoqiang Yang Zhibing Zhang Key Laboratory of Mesoscopic Chemistry of Ministry of Education(MOE) School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Micro-interface intensified reactor(MIR)can be applied in series/parallel in the absorption of CO_(2)in industrial gases by Na_(2)CO_(3)due to the ability to produce large numbers of stable *** work focuses on the variation pattern of mass transfer characteristics parameters of the reaction gas in Na_(2)CO_(3) solution under the influence of different solution properties and operating parameters in the reaction of CO_(2)absorption by *** mass transfer characteristics parameters include bubble Sauter mean diameter,gas holdup,interfacial area,liquid side mass transfer coefficient,and liquid side volume mass transfer coefficient *** solution properties and operating parameters include Na2CO3 concentration(0.05–2.0 mol·L^(-1)),superficial gas velocity(0.00221–0.01989 m·s^(-1)),superficial liquid velocity(0.00332–0.02984 m·s^(-1)),and ionic strength(1.42456–1.59588 mol·kg^(-1)).And volumetric mass transfer coeffi-cients kLa and superficial reaction rates r of the MIR and the bubble column reactor are compared in the reaction of sodium carbonate absorption of carbon dioxide,and the former shows a greater improvement under different solution properties and operating *** enhanced role of MIR in mass transfer in non-homogeneous reactions is verified and the feasibility of industrial practical applications of MIR is demonstrated.

关键词： Carbon dioxide Absorption Microbubble Bubble Sauter mean diameter Interfacial area Mass transfer

A new long-side-chain sulfonated poly(2,6-dimethyl-1,4-phenylene oxide)(PPO)/polybenzimidazole(PBI)amphoteric membrane for vanadium redox flow battery

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Chinese Journal of Chemical Engineering 2020年第7期28卷 1918-1924页

作者： bowen jiang Lei Hu Xiaoming Yan Jiahui Sun Li Gao Yan Dai Xuehua Ruan Gaohong He State Key Laboratory of Fine Chemicals School of Petroleum and Chemical EngineeringDalian University of TechnologyPanjin 124221China Panjin Industrial Technology Institute Dalian University of TechnologyPanjin 124221China

A new amphoteric membrane was prepared by blending long-side-chain sulfonated poly(2,6-dimethyl-1,4-phenylene oxide)(S-L-PPO)and polybenzimidazole(PBI)for vanadium redox flow battery(VRFB)*** acid-base pair structure formed between the imidazole of PBI and sulfonic acid of S-L-PPO resulted in lowered swelling *** favors to reduce the vanadium ***,the increased sulfonic acid concentration ensured that proton conductivity was still at a high *** a result,a better balance between the vanadium ion permeation(6.1×10^-9 cm^2·s^-1)and proton conductivity(50.8 m S·cm^-1)in the S-L-PPO/PBI-10%membrane was *** VRFB performance with S-L-PPO/PBI-10%membrane exhibited an EE of 82.7%,which was higher than those of pristine S-L-PPO(81.8%)and Nafion 212(78.0%)at 120 m A·cm^-*** addition,the S-LPPO/PBI-10%membrane had a much longer self-discharge duration time(142 h)than that of Nafion 212(23 h).

关键词： Amphoteric membrane Poly(2,6-dimethyl-1,4-phenylene oxide)(PPO) Vanadium redox flow battery Polybenzimidazole(PBI) Long side chain

Cerebral aneurysm treatment: modern neurovascular techniques

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Stroke & Vascular Neurology 2016年第3期1卷 93-100页

作者： bowen jiang Michelle Paff Geoffrey P Colby Alexander L Coon Li-Mei Lin Department of Neurosurgery Johns Hopkins University School of MedicineThe Johns Hopkins HospitalBaltimoreMarylandUSA Department of Neurosurgery University of CaliforniaIrvine School of MedicineUC Irvine Medical CenterOrangeCaliforniaUSA

Endovascular treatment of cerebral aneurysm continues to evolve with the development of new *** review provides an overview of the recent major innovations in the neurointerventional space in recent years.

关键词： treatment cerebral neu

Horizontal transfer and evolution of the biosynthetic gene cluster for benzoxazinoids in plants

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Plant Communications 2022年第3期3卷 102-115页

作者： Dongya Wu bowen jiang Chu-Yu Ye Michael P.Timko Longjiang Fan Hainan Institute of Zhejiang University Yonyou Industrial ParkSanya 572025China Institute of Crop Science&Institute of Bioinformatics Zhejiang UniversityHangzhou 310058China Department of Biology University of VirginiaCharlottesvilleVA 22904USA

Benzoxazinoids are a class of protective and allelopathic plant secondary metabolites that have been identified in multiple grass species and are encoded by the Bx biosynthetic gene cluster(BGC)in *** mining of 41 high-quality grass genomes identified complete Bx clusters(containing genes Bx1–Bx5 and Bx8)in three genera(Zea,Echinochloa,and Dichanthelium)of Panicoideae and partial clusters in *** Bx cluster probably originated from gene duplication and chromosomal translocation of native homologs of Bx *** ancient Bx cluster that included additional Bx genes(e.g.,Bx6)is presumed to have been present in ancestral *** ancient Bx cluster was putatively gained by the Triticeae ancestor via horizontal transfer(HT)from the ancestral Panicoideae and later separated into multiple segments on different ***6 appears to have been under less constrained selection compared with the Bx cluster during the evolution of Panicoideae,as evidenced by the fact that it was translocated away from the Bx cluster in Zea mays,moved to other chromosomes in Echinochloa,and even lost in *** investigations indicate that purifying selection and polyploidization have shaped the evolutionary trajectory of Bx clusters in the grass *** study provides the first candidate case of HT of a BGC between plants and sheds new light on the evolution of BGCs.

关键词： biosynthetic gene cluster horizontal transfer benzoxazinoid grass purifying selection

Realizing of a Battlefield Electromagnetic Situation System 36

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Realizing of a Battlefield Electromagnetic Situation System

A simple hydroxypyridine ionic liquids for conversion of CO_(2)into quinazoline-2,4(1H,3H)-diones under atmospheric conditions

第36届中国控制会议

作者： Dujuan Shen bowen jiang Tianlin Liu Jinku Guo ShijuQi Xi’an Research Institute of High Technology

ISBN: (纸本)9781538629185

The complexity and abstraction of the electromagnetic environment make the visual perception of the battlefield electromagnetic situation very difficult,which also highlights the importance of developing an integrated electromagnetic situation simulation system which integrates the electromagnetic environment visualization,the equipment interference analysis and the military action *** solve this problem,the battlefield electromagnetic situation system use digital Earth,situation simulation technology,and integrate electromagnetic signal propagation model to complete the electromagnetic field intensity calculation and construction;Evaluate the degree of equipment interference and assist electromagnetic optimization in operation plan based on equipment sensitivity model;Achieve visualization of integrated battlefield electromagnetic *** system can be applied to the military action deduction,the construction of complex electromagnetic environment and the communication scheme optimization in the Combat operations.

关键词： electromagnetic situation system electromagnetic signal propagation model Sensitive model of equipment visualization

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Chinese Journal of Chemical Engineering 2023年第10期62卷 217-224页

作者： bowen jiang Meiling Weng Jigang An Yuewei Fan Jia Liu Ying Liu Ting Yu Leizhi zheng Guoqiang Yang Zhibing Zhang School of Chemistry and Chemical Engineering Nanjing UniversityNanjing 210093China School of Materials Science and Engineering Suzhou University of Science and TechnologySuzhou 215009China

The transformation of CO_(2)into high value-added product is a promising pathway for utilizing CO_(2).However,the process tends to require harsh reaction conditions owing to CO_(2)chemical *** a high efficiency catalytic system with environmentally benign characteristic are important *** this work,protic ionic liquids[TMG][2-OPy]were prepared via one-step neutralization between 1,1,3,3-tetramethylguanidine and 2-hydroxypyridine,applying to the domain of synthesizing quinzoline-2,4(1 H,3H)-diones from CO_(2)and 2-aminobenzontiles without any solvent or metal,achieving the yield of 97%at 90℃for 8 h under atmospheric.A series of substrates with good to acceptable yield were detected,revealing the generality and universality of the ***,the system could be facilely reused for at least six runs,retaining the yield of 94%.A preliminary kinetic equation is calculated with the activation energy of 68 kJ·mol^(-1),and a plausible reaction mechanism was put *** study highlights that the[TMG][2-OPy]enables to activate CO_(2)carboxylation efficiently.

关键词： CO_(2)conversion Homogeneous catalyst Ionic liquids Reaction kinetic