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  • [会议] 新型无机储能材料的设计、合成及性能研究

    新能源、智能电网、电动汽车,这未来三大新兴产业的发展瓶颈都指向了同一项技术——储能技术。目前储能技术的开发远远落后于风能和太阳能的发展,各国都急于发展储能技术。无机纳米材料在能源转化过程中发挥着重要和不可替代的作用。针对这一点,我们开展了下一代锂离子电池和锂空气电池、燃料电池用催化剂的设计、合成及性能研究。通过调节纳米粒子的大小、组成和结构等,有效降低了锂-空气电池充/放电过电位,大幅提高了能量转化效率和倍率性能等。通过结构设计和合成方法改进,合成了一系列高容量锂离子正极和负极材料,有望大幅提高锂离子电池的

  • [会议] Growth of net-like metallic single walled carbon nanotubes by N-doping

    It is difficult to obtain pure m-SWCNTs owing to their inherent low enrichment and high reactive activities compared to s-SWCNTs. In recent years, many groups have demonstrated that N-doped SWCNTsbehave like metallic tubes. However, most of the works are i

  • [会议] 高血脂对心肌缺血损伤耐受能力影响的实验研究

    目的:探讨高血脂对缺血性心肌损伤耐受能力的影响。 方法:采用饲喂高脂饲料诱导高血脂大鼠,比较结扎正常血脂与高血脂大鼠冠脉后心肌梗死急性期死亡率,心梗后重塑期 21d时大鼠心功能参数,心肌组织病理变化,分析心肌损伤程度与血脂高低的关系。 结果:正常供氧的高血脂大鼠心脏结构和功能与正常对照组相当。但心肌缺血时高血脂大鼠心肌梗死急性期的死亡率显著高于血脂正常组(p<0.05),心肌梗死面积显著大于血脂正常组;重塑期高血脂心肌梗死大鼠心功能参数EF 等指标显著低于血脂正常组,且与血清胆固醇、甘油三酯水平显著负相关,

  • [会议] Molecular modeling of biomolecular hydrogen gas sensor using GaAs nanopore electrode

    This article presents an atomic scale model of single strand DNA based Hydrogen gas sensor using Density Functional Theory conjugated with Non-Equilibrium Green's Function based first principle approach. This device is designed to detect the presence of Hy

  • [会议] Synthesis, Structural Characterization and Antibacterial Activities of N-halogen-Substituted Benzylidene Aromatic Amine

    Series of N-halogen-substituted benzylidene aromatic amine were synthesized. Their structures were characterized by NMR spectrum. Some crystal structures were refined through the SHELXL97 software processing. The results showed that trans-structure were th

  • [会议] Proficient key management scheme for multicast groups using group key agreement and broadcast encryption

    Key Management techniques are exercised to distribute and update keys such that illegitimate parties cannot ingress group communications. Key management, however can exhibit information about the stream of group association, such as group size and the numb

  • [会议] 杯芳烃组装界面材料的设计合成及识别性能

    超分子化学的发展不仅与大环化学的发展密切相连,而且与分子自组装、分子器件和新兴纳米材料的研究息息相关.近几年响应性材料因其在分析检测、药物控制释放、微流体器件等方面有着巨大的应用前景,引起了人们重视.从文献中看,该方面主要集中在光、电、磁等物理和pH、离子等化学刺激调控的响应性材料.然而有机小分子响应性材料报道较少,其原因是基于弱相互作用构建的响应体系对有机小分子的亲和性较差,造成非特异响应.亲疏水性,即浸润性是固体界面的重要性质之一,它是由界面的化学组成和界面结构共同决定的.杯芳烃具有较好的小分子络合特点

  • [会议] 智能C_2型超分子聚合物凝胶及其生物应用

    利用氢键、π-π、疏水等非共价键作用力存在下进行的超分子自组装,我们成功地获得了一类C2氨基酸类超分子聚合物凝胶。其中凝胶因子以环己烷或苯环为中心核,在1,4位对称嫁接氨基酸等官能团为侧链。这些凝胶对一系列外界刺激包括温度、pH值以及机械力等显示出了显著的智能及可逆响应性。扫描电镜、透射电镜及原子力显微镜等显微表征证明该C2超分子体系在溶剂中自组装形成纳米纤维状网络结构。同时小角X散射结果表明这些纳米纤

  • [会议] 石墨烯基二氧化硅/硫化钼复合材料的制备及锂电性能研究

    锂离子电池因为其优秀的电化学性能,安全环保等特性,是目前最受欢迎,最广泛使用的二次电池.但随着电动车的起步发展,便携式设备的广泛使用,人们需要更大能量密度和功率密度的锂离子电池以满足生活生产需要.石墨烯是单个碳原子厚度的六方网格结构碳材料.因为其具有很高的电子传导性能、大比表面积、优秀的机械性能、物理化学稳定性,在锂离子电池电极材料上有重要的研究和应用意义.

  • [会议] Theory and Modeling of Electro-Thermal Transport on the Nanoscale

    With the rapid exploration of nanomaterials and nanostructures, developing and utilizing accurate, efficient and physically-intuitive theoretical approaches is important for providing a deeper understanding and guiding experiments. Within the context of el

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