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| 1 | 跃变比判别热解Si-C-N陶瓷EELS定量分析的有效性显示文摘电子能量损失谱(EELS)分析方法的运用为材料研究领域提供了有力的定性和定量手段。通过对内壳层电子激发谱跃变比的计算,能够获得样品相对厚度的参考信息。这一方法弥补了实验条件在同步采集等离子激发谱和内壳层电子激发谱方面的局限性,并为辨别EELS定量的可靠性提供依据。本文以Si3N4为例,对跃变比随样品相对厚度的变化规律进行了研究,并在低于最佳样品厚度的范围内得到了可靠的定量结果。类似的跃变比变化规律能够运用于成份均一的Si-C-N热解样品,然而对于非均一的Si-C-N退火样品则不适用。 | 李凌燕 顾辉 VESNA Srot PETER van Aken | 2009 | 电子显微学报2009，28，2： | 1 |
| 2 | Enhanced Pseudo‑Capacitive Contributions to High‑Performance Sodium Storage in TiO2/C Nanofibers via Double Effects of Sulfur Modification显示文摘Pseudo-capacitive mechanisms can provide higher energy densities than electrical double-layer capacitors while being faster than bulk storage mechanisms.Usually,they suffer from low intrinsic electronic and ion conductivities of the active materials.Here,taking advantage of the combination of TiS2 decoration,sulfur doping,and a nanometer-sized structure,as-spun TiO2/C nanofiber composites are developed that enable rapid transport of sodium ions and electrons,and exhibit enhanced pseudo-capacitively dominated capacities.At a scan rate of 0.5 mV s−1,a high pseudo-capacitive contribution(76%of the total storage)is obtained for the S-doped TiS2/TiO2/C electrode(termed as TiS2/S-TiO2/C).Such enhanced pseudocapacitive activity allows rapid chemical kinetics and significantly improves the high-rate sodium storage performance of TiO2.The TiS2/S-TiO2/C composite electrode delivers a high capacity of 114 mAh g−1 at a current density of 5000 mA g−1.The capacity maintains at high level(161 mAh g−1)even after 1500 cycles and is still characterized by 58 mAh g−1 at the extreme condition of 10,000 mA g−1 after 10,000 cycles. | Yan Zhang Yuanye Huang Vesna Srot Peter A.van Aken Joachim Maier Yan Yu | 2020 | Nano-Micro Letters2020，12，12： | 1 |
| 3 | The Role of University of Maribor Library in Library Information Literacy Training of High School Students显示文摘 | Srot Kristina Cagran | 2013 | School Libraries Worldwide2013，10，1： | 1 |
| 4 | Factors reducing the population density of the large poplar borer (Saperda carcharias)显示文摘 | Srot M | 1983 | Lesnictvi UVTIZ1983，29，9： | 1 |
| 5 | Factors reducing the population density of the large poplar borer (Saperda carcharias) 显示文摘 | Srot M | 1983 | Lesnietvi1983，29，9： | 1 |
| 6 | Initial nucleation of amorphous Si–B–C–N ceramics derived from polymer-precursors显示文摘Nucleation behavior of amorphous Si–B–C–N ceramics derived from boron-modified polyvinylsilazane procusors was systematically investigated by transmission electron microscopy(TEM) combined with spatially-resolved electron energy-loss spectroscopy(EELS) analysis. The ceramics were pyrolyzed at1000℃ followed by further annealing in N2, and SiC nano-crystallites start to emerge at 1200℃ and dominate at 1500℃. Observed by high-angle annular dark-field imaging, bright and dark clusters were revealed as universal nano-structured features in ceramic matrices before and after nucleation, and the growth of cluster size saturated before reaching 5 nm at 1400℃. EELS analysis demonstrated the gradual development of bonding structures successively into SiC, graphetic BNCxand Si3N4 phases, as well as a constant presence of unexpected oxygen in the matrices. Furthermore, EELS profiling revealed the bright SiC clusters and less bright Si3N4-like clusters at 1200–1400℃. Since the amorphous matrix has already phase separated into SiCN and carbon clusters, another phase separation of SiCN into SiC and Si3N4-like clusters might occur by annealing to accompany their nucleation and growth, albeit one crystallized and another remained in amorphous structure. Hinderance of the cluster growth and further crystallization was owing to the formation of BNCxlayers that developed between SiC and Si3N4-like clusters as well as from the excessive oxygen to form the stable SiO2. | Ling-yan Li Hui Gu Vesna Srot Peter van Aken Joachim Bill | 2019 | Journal of Materials Science & Technology2019，35，12： | 0 |
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