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Science China Chemistry 2011年第3期54卷 483-489页

作者： CHEN Xi' An WANG Shun LIN JuanJuan LIU aili HUANG ShaoMing Nano-materials & Chemistry Key Laboratory Wenzhou University Wenzhou 325035 China

An indium tin oxide(ITO)electrode coated with monolayer TiO2/[Ru(phen)2(dC18bpy)] 2+ (phen=1,10-phenanthroline, dC18bpy=4,4′-dioctadecyl-2,2′-bipyridyl)hybrid film(denoted as ITO/TiO2-Ru)has been prepared using the modified Langmuir-Blodgett(LB)method,and the electrocatalytic oxidation of mononucleotide of guanosine 5′-monophosphate(GMP)on an ITO/TiO2-Ru electrode after Pd-photodeposition(denoted as ITO/TiO2-Ru/Pd)has been *** force microscopy reveals that the single-layered hybrid film of TiO2 nanosheets/[Ru(phen)2(dC18bpy)] 2+is closely packed at a surface pressure of 25 mN m 1and has a thickness of(3.20±0.5)nm.X-ray photoelectron spectra show the formation of Pd nanoparticles on the surface of hybrid film with radii of 20–200 nm by the reduction of[Pd(NH3)4] 2+ under light *** it is applied to oxidize GMP,a larger catalytic oxidative current is achieved on the ITO/TiO2-Ru/Pd electrode at the external potential above 700 mV(***|AgCl|KCl)in comparison with the naked ITO electrode and ITO/TiO2-Ru *** a result indicates that the Pd nanoparticles are able to hamper the combination of electron hole pairs and reduce the counterwork of insulating long alkyl chains of amphiphilic Ru(II)complexes,and thus develops the electron transfer efficiency and produces the enhanced redox current.

关键词： Langmuir-Blodgett method TiO2/[Ru(phen)2(dC18bpy)] 2+ hybrid film Pd nanoparticles modified electrode electrocatalysis

Carboxylate-bridged helical chains based on an azo carboxylate oximate ligand

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Science China Chemistry 2012年第6期55卷 1042-1046页

作者： KOU HuiZhong ZHANG YanDong CUI aili Department of Chemistry Tsinghua University Beijing 100084 China

Two helical one-dimensional complexes [Mnn（MeOH）4][MnlV（L）2]·2MeOH （1） and [Mnm（salen）][Mnm（L）2] （2）（H2L = HON=C（Ph）N=NC6HaCO2H） contain the noninnocent ligand [Mn（L）2]2- and innocent low-spin [Mn（L）2]-. Intrachain anti- ferromagnetic interaction between adjacent manganese syn-anti and anti-anti carboxylate bridges have been high-spin and low-spin Mn（llI） ions in complex 2. ions via the syn-anti carboxylate bridges in complex 1. Alternate found to transmit ferro- and antiferromagnetic coupling between

关键词： coordination polymer crystal structure magnetic property carboxylate manganese azo ligand

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民勤青土湖肉苁蓉茎腐病病原菌的分离鉴定

西北农业学报 2025年第1期34卷 184-190页

作者：刘伟何彩金娜赵连鑫晋敏张军李强李栋段爱莉武威市林业科学研究院甘肃武威733000 武威市食品检验检测中心甘肃武威733000

为明确甘肃民勤青土湖肉苁蓉茎腐病病原菌种类,采用组织分离法,结合形态学特征与ITS分子方法对其进行分离鉴定。结果表明,从青土湖肉苁蓉茎腐病中共分离出3种不同的病原菌,室内回接和田间发病症状基本一致,均表现出茎腐病典型症状,分别... 详细信息

为明确甘肃民勤青土湖肉苁蓉茎腐病病原菌种类,采用组织分离法,结合形态学特征与ITS分子方法对其进行分离鉴定。结果表明,从青土湖肉苁蓉茎腐病中共分离出3种不同的病原菌,室内回接和田间发病症状基本一致,均表现出茎腐病典型症状,分别命名为RCRJF-1、RCRJF-2、RCRJF-3。在PSA培养基上观察3个菌株的形态特征得知,RCRJF-1菌落圆形,淡紫色,白色气生菌丝,背面产生淡紫色色素,大型分生孢子细长,镰刀型,2~5隔,小型分生孢子长椭圆形,多无隔;RCRJF-2具有白色气生菌丝,菌落淡粉色,菌落背面中心淡紫色,但在PSA培养基上不产孢,在PDA培养基上大型分生孢子2~3分隔,小型分生孢子0~1分隔,卵圆形或肾形,厚垣孢子球形,间生或串生;RCRJF-3具有棉絮状气生菌丝,表面玫瑰红色、边缘玫瑰红色、中心部分黄棕色,菌落背面紫红色,在PDA培养基上不产孢,在PSA培养基上大型分生孢子镰刀型,多数3~5隔,小型分生孢子较少,成球棒状。进一步ITS分子鉴定得知,RCRJF-1、RCRJF-2、RCRJF-3分别与层出镰刀菌(Fusarium proliferatum)(登录号MT560212)、尖孢镰刀菌(Fusarium oxysporum)(登录号MT530243)、锐顶镰刀菌(Fusarium acuminatum)(登录号MH341217)具有较高的相似性,均为100%。结合形态学特征,确定引起甘肃民勤青土湖肉苁蓉茎腐病的致病菌为层出镰刀菌(***)、尖孢镰刀菌(***)和锐顶镰刀菌(***),分离频率分别为52.38%、31.11%和16.51%,其中层出镰刀菌(***)为优势致病菌。

关键词：肉苁蓉茎腐病病原菌分离鉴定

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RNAi technology for plant protection and its applicatior in wheat

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aBIOTECH 2021年第4期2卷 365-374页

作者： Shaoshuai Liu Shuaifeng Geng aili Li Yingbo Mao Long Mao Institute of Crop Science Chinese Academy of Agricultural SciencesBeiing 100081China Chinese Academy of Sciences(CAS)Key Laboratory of Insect Developmental and Evolutionary Biology CAS Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyUniversity of CASChinese Academy of SciencesShanghai 200032China Sino-Agro Research Station for Salt Tolerant Crops Yellow River DeltaKenli DistrictDongying 257500ShandongChina

The RNAi technology takes advantage of the intrinsic RNA interference(RNAi)mechanism that exists in nearly all eukaryotes in which target mRNAs are degraded or functionally *** progress has been made in recent years where RNAi technology is applied to several crops and economic plants for protection against diseases like fungi,pests,and *** technology is also applied in controlling pathogen damages in wheat,one of the most important crops in the *** this review,we first give a brief introduction of the RNAi technology and the underneath *** then review the recent progress of its utilization in crops,particular ***,we discuss the existing challenges and prospect future development of this technology in crop protection.

关键词： Double-stranded RNA Pathogens Pests Nematodes RNA interference Small RNA Wheat

Synthetic Hexaploid Wheat： Yesterday, Today, and Tomorrow

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Engineering 2018年第4期4卷 552-558页

作者： aili Li Dengcai Liu Wuyun Yang Masahiro Kishii Long Mao Institute of Crop Sciences Chinese Academy of Agricultural Sciences Beijing 100081 China Triticeae Research Institute Sichuan Agricultural University Chengdu 611130 China Crop Research Institute Sichuan Academy of Agricultural Sciences Chengdu 610066 China International Maize and Wheat Improvement Center Yexcoco 56237 Mexico

In recent years, wheat yield per hectare appears to have reached a plateau, leading to concerns for future food security with an increasing world population. Since its invention, synthetic hexaploid wheat （SHW） has been shown to be an effective genetic resource for transferring agronomically important genes from wild relatives to common wheat. It provides new sources for yield potential, drought tolerance, disease resistance, and nutrient-use efficiency when bred conventionally with modern wheat varieties. SHW is becoming more and more important for modern wheat breeding. Here, we review the current status of SHW generation, study, and application, with a particular focus on its contribution to wheat breeding. We also briefly introduce the most recent progress in our understanding of the molecular mechanisms for growth vigor in SHW. Advances in new technologies have made the complete wheat reference genome available, which offers a promising future for the study and applications of SHW in wheat improvement that are essential to meet global food demand.

关键词： Synthetic wheat Wheat Polyploidization Disease resistance Stress tolerance Yield

Advances in perovskite quantum-dot solar cells

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Journal of Energy Chemistry 2021年第1期30卷 351-353,I0011页

作者： aili Wang Zhiwen Jin Ming Cheng Feng Hao Liming Ding School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731SichuanChina School of Physical Science and Technology Key Laboratory for Magnetism and Magnetic Materials(MoE)Lanzhou UniversityLanzhou 730000GansuChina Institute for Energy Research Jiangsu UniversityZhenjiang 212013JiangsuChina Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190China

Perovskite quantum-dots (PQDs) have emerged as prominent candidates for intriguing photovoltaic application due to their superior optoelectronic properties such as multiple exciton generation, bandgap tunability, elec... 详细信息

关键词： Charge transport Ligand capping Defect passivation Composition engineering

Numerical simulation of effect of rotational tool with screw on material flow behavior of friction stir welding of Ti6Al4V alloy

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Acta Metallurgica Sinica(English Letters) 2012年第5期25卷 365-373页

作者： Shude JI aili ZOU Yumei YUE Guohong L UAN Yanye JIN Fu LI Faculty of Aerospace Engineering Shenyang Aerospace University Shenyang 110136 China Beijing Aeronautical Manufacturing Technology Research Institute Beijing 100024 China

The rotational tool is put forward, which is composed of the one-spiral-flute shoul- der and the rotational pin with screw. Using the turbulent model of the FLUENT software, material plastic flow behavior during the process of friction stir welding of Ti6A14V alloy is researched by the numerical simulation method and then the effect of rotational tool geometry on material flow during the welding process is attained. The results show that the flow direction of the material near the rotational tool is mainly the same as the rotational direction of the tool while the material near tool flows more violently than the other regions. For the tapered rotational pin, the flow velocity of material inside the workpiece decreases with the increase of the distance away from the workpiece surface because of the change of pin diameter. For the rotational tool, the flute added to the shoulder and the screw added to the pin can greatly increase the flow velocity of material during the welding process while the peak value of the flow velocity of material appears on the flute or the screw. Moreover, the rotational tool with the one-spiral-flute shoulder is better than the tool with the concentric- circles-flute shoulder. Decreasing the width of pin screw and increasing the diameter of pin tip are both good for the increase of flow velocity.

关键词： Friction stir welding Titanium alloy Plastic flow Numericalsimulation

Enhanced electrocatalytic activity of Co@N-doped carbon nanotubes by ultrasmall defect-rich TiO2 nanoparticles for hydrogen evolution reaction

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Nano Research 2017年第8期10卷 2599-2609页

作者： Jiayuan Yu Weijia Zhou Tanli Xiong aili Wang Shaowei Chen Benli Chu School of Environment and Energy Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control South China University of Technology Guangzhou Higher Education Mega Center Guangzhou 510006 China School of Physics and Telecommunication Engineering South China Normal University Guangzhou Higher Education Mega Center Guangzhou 510006 China Department of Chemistry and Biochemistry University of California 1156 High Street Santa Cruz CA 95064 USA

Despite being technically possible, splitting water to generate hydrogen is practically unfeasible, mainly because of the lack of sustainable and efficient earth-abundant catalysts for the hydrogen-evolution reaction （HER）. Herein, we report a durable and highly active electrochemical HER catalyst based on defect-rich TiO2 nanoparticles loaded on Co nanoparticles@N-doped carbon nanotubes （D-TiOdCo@NCT） synthesized by electrostatic spinning and a subsequent calcining process. The ultrasmall TiO2 nanoparticles are 1.5-2 nm in size and have a defect-rich structure of oxygen vacancies. D-TiO2/Co@NCT exhibits excellent HER catalytic activity in an acidic electrolyte （0.5 M H2SO4）, with a low onset potential of -57.5 mV （1 mA·cm^-2）, a small Tafel slope of 73.5 mV·dec^-1, and extraordinary long-term durability. X-ray photoelectron spectroscopy, electron paramagnetic resonance spectroscopy, and theoretical calculations confirm that the Ti3. defect-rich structure can effectively regulate the catalytic activity for electrochemical water splitting.

关键词： ultrasmall nanoparticle TiO2 defect structure carbon nanotube hydrogen-evolution reaction

THREE DISTINCT STAGES OF THE UNSTEADY FLOW BEHIND THE SHOCK WAVE FORMED BY THE NORMAL REFLECTION OF A PLANAR STRONG POINT BLAST WAVE FROM A WALL

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Acta Mechanica Sinica 1986年第1期2卷 27-29+31-33页

作者： Ting aili (Department of Mathematics,Beijing University) Department of Mathematics Beijing University Beijing China

The method of characteristics with shock fitting and a family of continuous C-characteristic lines are used for the analysis of the normal reflection of a planar strong pointblast wave from a wall. Several techiques are devised in order to increase the accuracy ofcalculation for the problem including two complex *** data for the flow fieldnear the wall till very late time are *** are given for three stages,eachpossessing distinct gasdynamic features such as the orientation of characteristics,paths offluid particles,distribution of entropy,and so on.

关键词： unsteady flow reflecting shock shock wave local sound speed

Advancement toward Polymer Electrolyte Membrane Fuel Cells at Elevated Temperatures

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Research 2020年第1期2020卷 1731-1745页

作者： Jin Zhang David aili Shanfu Lu Qingfeng Li and San Ping Jiang Beijing Key Laboratory of Bio-Inspired Energy Materials and Devices&School of Space and Environment Beihang UniversityBeijing 100191China Department of Energy Conversion and Storage Technical University of DenmarkFysikvej 3102800 LyngbyDenmark Fuels and Energy Technology Institute&WA School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityWA6102PerthAustralia

Elevation of operational temperatures of polymer electrolyte membrane fuel cells(PEMFCs)has been demonstrated with phosphoric acid-doped polybenzimidazole(PA/PBI)*** technical perspective of the technology is simplified construction and operation with possible integration with,e.g.,methanol *** this target,significant efforts have been made to develop acid-base polymer membranes,inorganic proton conductors,and organic-inorganic composite *** report is devoted to updating the recent progress of the development particularly of acid-doped PBI,phosphate-based solid inorganic proton conductors,and their composite ***-term stability of PBI membranes has been well documented,however,at typical temperatures of 160℃.Inorganic proton-conducting materials,e.g.,alkali metal dihydrogen phosphates,heteropolyacids,tetravalent metal pyrophosphates,and phosphosilicates,exhibit significant proton conductivity at temperatures of up to 300℃ but have so far found limited applications in the form of thin *** membranes of PBI and phosphates,particularly in situ formed phosphosilicates in the polymer matrix,showed exceptionally stable conductivity at temperatures well above 200℃.Fuel cell tests at up to 260℃ are reported operational with good tolerance of up to 16%CO in hydrogen,fast kinetics for direct methanol oxidation,and feasibility of nonprecious metal *** prospect and future exploration of new proton conductors based on phosphate immobilization and fuel cell technologies at temperatures above 200℃ are discussed.

关键词： inorganic methanol composite