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In-situ surface decoration of RuO_(2) nanoparticles by laser ablation for improved oxygen evolution reaction activity in both acid and alkali solutions

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Journal of Energy Chemistry 2021年第3期30卷 510-518页

作者： Zongpeng Wang Beibei Xiao Zhiping Lin Shijie Shen aijiao xu Zexin Du Yuchao Chen Wenwu Zhong School of Advanced Study Taizhou UniversityTaizhou 318000ZhejiangChina School of Pharmau and Material Engineering Taizhou UniversityTaizhou 318000ZhejiangChina School of Energy and Power Engineering Jiangsu University of Science and TechnologyZhenjiang 212003JiangsuChina

Improving the OER activity of noble metal-based materials is of profound importance to minimize the usage of noble metals and lower the ***,we report considerable improvement on the catalytic activity of RuO_(2) particles for OER in both alkali and acid *** RuO_(2) nanoparticles were treated with a method of pulse laser *** Ru and RuO_(2) clusters were generated at the surface of RuO_(2) nanoparticles after the laser ablation,forming a lychee-shaped *** larger pulse energy RuO_(2) nanoparticles are treated with,the better the OER activity can *** calculations shows that the surface tension induced by the lychee-shaped morphology benefits the OER *** best sample gives an overpotential of 172 mV(at 10 mA cm^(-2))and a Tafel slope of 53.5 mV dec^(-1) in KOH,while an overpotential of 219 mV and a Tafel slope of 44.9 mV dec^(-1) in H_(2)SO_(4),which are of topclass *** work may inspire a new way to develop high-performance electrocatalysts for OER.

关键词： Oxygen evolution reaction Laser ablation RuO_(2)

Ultralow-temperature assisted synthesis of single platinum atoms anchored on carbon nanotubes for efficiently electrocatalytic acidic hydrogen evolution

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Journal of Energy Chemistry 2020年第12期29卷 280-292页

作者： Wenwu Zhong Wenguang Tu Zongpeng Wang Zhiping Lin aijiao xu Xiufang Ye Dongchu Chen Beibei Xiao Department of Materials Taizhou UniversityTaizhou 318000ZhejiangChina School of Energy and Power Engineering Jiangsu University of Science and TechnologyZhenjiang 212003JiangsuChina School of Material Science and Energy Engineering Foshan UniversityFoshan 528001GuangdongChina School of Mechanical df Aerospace Engineering Nanyang Technological UniversitySingapore637459Singapore

Although platinum(Pt) is highly active for hydrogen evolution reaction(HER)[1], it is crucial to explore the effective approach for minimizing the Pt loading amount in the practical application. Herein, one ultralow-temperature solution reduction approach is developed to anchor atomically dispersed Pt atoms on carbon nanotubes(Pt-CNTs), which decelerates the diffusion rate of Pt Cl2-6 ion reached onto the carbon nanotubes and lowers the free energy of Pt atoms in the solution to reduce the probability of the Pt aggregation. The obtained Pt-CNTs exhibits a low overpotential of 41 mV@10 mA cm^(-2) for HER in acidic media. The calculation results revealed that the improvement of the electrocatalytic activity is contributed by the interaction between CNTs and Pt atoms, which descreases the the Pt d band cneter referred to the Fermi level and lowers the Gibbs free energy of H*adsorption. This work may provide one easy and convenient strategy for the large-scale use of Pt catalysts in practical applications.

关键词： Hydrogen evolution reaction Single-atom catalysts Ultralow-temperature Platinum Carbon nanotubes

Genetic Analysis of a Dwarf Vine and Small Fruit Watermelon Mutant

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Horticultural Plant Journal 2016年第4期2卷 224-228页

作者： LI Yuge xu aijiao DONG Wei LI Zhi LI Guoshen College of Science Biology Henan UniversityPlant Genetics Laboratory

The dwarf vine and small fruit watermelon, referred to as ‘dsh' in this study, is a natural mutant of the ordinary watermelon, ‘Hanxuan Lvyuan'.Morphological assessment indicated that its main vine length, internode length, and single-fruit weight were significantly lower than those of the ordinary watermelon(P 0.05), respectively. It was suggested that this dwarf and small fruit mutation was a single recessive gene trait that followed a Mendel's inheritance.

关键词： watermelon dwarf small fruit short vine mutant

磁控溅射WO_x-Ti(Mo,Ni,V)薄膜的电致变色性能

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材料导报 2007年第4期21卷 144-146,154页

作者：黄佳木徐爱娇蔡明重庆大学材料科学与工程学院重庆400045

采用反应磁控溅射工艺分别制备掺杂Ti、Mo、Ni、V的WOx薄膜,研究了掺杂对其电致变色性能的影响机理。实验结果表明,适量的掺杂可以提高薄膜的电致变色性能,Mo的掺杂可以调节光谱吸收范围,Ni、V的掺杂可以提高记忆存储能力,Ti的掺杂可以... 详细信息

采用反应磁控溅射工艺分别制备掺杂Ti、Mo、Ni、V的WOx薄膜,研究了掺杂对其电致变色性能的影响机理。实验结果表明,适量的掺杂可以提高薄膜的电致变色性能,Mo的掺杂可以调节光谱吸收范围,Ni、V的掺杂可以提高记忆存储能力,Ti的掺杂可以延长循环寿命;磁控溅射制备的掺杂WOx薄膜均为非晶态。

关键词： WOx 薄膜电致变色掺杂磁控溅射

腔内三维自由成像与二维超声对节育器异位诊断比较

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影像研究与医学应用 2019年第20期3卷 36-38页

作者：熊可江丹火徐爱娇景德镇市妇幼保健院超声科

目的:腔内三维自由成像技术与二维超声对节育器异位诊断比较。方法:对106例经取环术或宫腔镜手术明确节育器异位病例,术前均行二维超声及三维自由成像技术检查,对其检查结果进行比较。结果:106例节育器异位病例中,三维自由成像技术对节... 详细信息

目的:腔内三维自由成像技术与二维超声对节育器异位诊断比较。方法:对106例经取环术或宫腔镜手术明确节育器异位病例,术前均行二维超声及三维自由成像技术检查,对其检查结果进行比较。结果:106例节育器异位病例中,三维自由成像技术对节育器异位的诊断率为100%(106/106),二维超声诊断率为85%(90/106),两者差异有统计学意义(P<0.05);而在异位类型判断中,节育器下移及穿孔差异没有统计学意义,在节育器转位及嵌顿,差异有统计学意义(P<0.05)。结论:三维自由成像技术在节育器异位诊断方面明显优于二维超声,异位类型中,在节育器转位及嵌顿类型诊断优势明显,能为临床手术方式的选择及术中处理提供指导性意见。

关键词：三维自由成像二维超声节育器异位比较

Roles of flanking sequences in the binding between unimolecular parallel-stranded G-quadruplexes and ligands

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Science Bulletin 2013年第7期58卷 731-744页

作者： GAI Wei YANG QianFan XIANG JunFeng SUN HongXia SHANG Qian LI Qian JIANG Wei GUAN aijiao ZHANG Hong TANG YaLin xu GuangZhi Beijing National Laboratory for Molecular Sciences Center for Molecular SciencesState Key Laboratory for Structural Chemistry for Unstable and Stable SpeciesInstitute of ChemistryChinese Academy of Sciences Graduate University of Chinese Academy of Sciences

G-quadruplexes attract more and more attention in recent *** small molecules which can induce or stabilize the formation of G-quadruplexes have been investigated on the purpose of anticancer drug *** a motif existed in physiological condition,flanking sequences are an important part of G-quadruplexes but the study on the impact of flanking sequences on (G-quadruplex)-ligand binding is rarely *** this paper,the effects of flanking sequences on binding affinity between a series of unimolecular parallel-stranded G-quadruplex sequences derived from c-myc oncogene promoter (termed as c-myc G-quadruplexes) and their ligands are discussed in *** results showed that the flanking sequences on c-myc G-quadruplexes play key roles in (G-quadruplex)-ligand *** a c-myc G-quadruplex is bound to its ligands,the flanking sequences might form a binding cavity above the terminal G-quartet,which could provide a suitable site for ligands to dock ***,the bases on flanking sequences could interact with ligand through π-π stacking,and finally form a sandwich-stacking mode (terminal G-quartet,ligand and bases on the flanking sequence).This mode could stabilize the (G-quadruplex)-ligand complex effectively and enhance the binding affinity ***,flanking sequences are also found to exhibit steric hindrance effect which could impede the (G-quadruplex)-ligand binding.

关键词： G-quadruplex flanking sequences interaction mechanism c-myc cyanine dye

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阻燃抑烟环氧树脂的制备与性能

高分子材料科学与工程 2017年第9期33卷 158-163,170页

作者：徐宝羚徐文总王少卿张丙亮李爱娇安徽建筑大学材料与化学工程学院安徽合肥230601

通过离子交换法将七钼酸根离子插入到含硝酸根的MgAl层状双氢氧化物(NO_3-MgAl LDHs)的层间,得到含钼酸根的MgAl层状双氢氧化物(Mo-MgAl LDHs),并将制得的LDHs加入到环氧树脂(ER)中制成复合材料ER/LDHs。通过热重分析、锥形量热、极限... 详细信息

通过离子交换法将七钼酸根离子插入到含硝酸根的MgAl层状双氢氧化物(NO_3-MgAl LDHs)的层间,得到含钼酸根的MgAl层状双氢氧化物(Mo-MgAl LDHs),并将制得的LDHs加入到环氧树脂(ER)中制成复合材料ER/LDHs。通过热重分析、锥形量热、极限氧指数和烟密度等测试对复合材料的性能进行分析,结果表明,与纯ER相比,ER/LDHs复合材料的最大热释放速率(PHRR)、总的热释放量(THR)和烟密度都降低,氧指数提高,而且ER/Mo-MgAl LDHs复合材料的阻燃抑烟性能要比ER/NO_3-MgAl LDHs的更好;同时,添加少量LDHs可以提高复合材料的力学性能。

关键词：层状双氢氧化物七钼酸根离子环氧树脂阻燃抑烟

Roles of flanking sequences in the binding between unimolecular parallel-stranded G-quadruplexes and ligands

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Science China(Technological Sciences) 2013年第3期56卷 731-740页

关键词： G-quadruplex flanking sequences interaction mechanism c-myc cyanine dye

新型冠状病毒肺炎合并高血压患者心肌CT影像学特点分析

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实用医学杂志 2020年第13期36卷 1716-1720页

作者：沈国秀顾崇怀孙爱娇乔锐徐健安徽医科大学附属省立医院中国科学技术大学附属第一医院心血管内科合肥230001 安庆市立医院安徽医科大学附属安庆医院心血管内科安徽安庆246000

目的探究新型冠状病毒感染肺炎(COVID-19)合并高血压病患者心肌损伤实验室及影像学特点。方法回顾性分析安庆市立医院2020年1月22日至3月4日收治的COVID-19患者,将其按照是否合并高血压病分为两组。比较两组患者在院期间相关实验室指标... 详细信息

目的探究新型冠状病毒感染肺炎(COVID-19)合并高血压病患者心肌损伤实验室及影像学特点。方法回顾性分析安庆市立医院2020年1月22日至3月4日收治的COVID-19患者,将其按照是否合并高血压病分为两组。比较两组患者在院期间相关实验室指标,并通过电子计算机断层扫描(CT)获取其住院期间首次及出院前相应心肌CT值及心外膜脂肪(EAT)体积,分析COVID-19合并高血压病患者心肌影像学特点。结果比较两组患者一般资料,患者在年龄、性别、基础疾病构成等方面差异无统计学意义(P>0.05)。两组患者在包括hs-TNT在内的基线实验室化验指标上差异无统计学意义(P>0.05),但合并高血压的COVID-19患者hs-TNT峰值较未合并高血压的患者显著升高[4.00(3.00,6.00)vs. 9.50(6.95,10.45),P=0.003]。比较两组CT影像学特点发现:无论是基线还是出院前患者心肌CT值均差异无统计学意义(P>0.05)。两组基线EAT体积差异无统计学意义(P=0.176),高血压组患者出院前EAT体积较非高血压组患者明显升高[(180.09±33.13)vs.(114.63±42.30),P<0.001],同时对比两组出-入院EAT体积差值发现高血压组患者EAT体积显著增加[(59.89±24.62)vs.(13.43±21.18),P=0.004]。结论 COVID-19合并高血压的患者hs-TNT峰值及经院内CT测量的EAT体积较未合并高血压病患者均显著升高,提示可能该病对于合并高血压病患者存在潜在心肌损伤的可能。

关键词：严重急性呼吸综合征冠状病毒2 新型冠状病毒肺炎高血压病心外膜脂肪组织