排序方式: 共有41条查询结果,搜索用时 15 毫秒
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Xun Guo Guozhao Fang Wenyu Zhang Jiang Zhou Lutong Shan Liangbing Wang Chao Wang Tianquan Lin Yan Tang Shuquan Liang 《Liver Transplantation》2018,8(27)
Rechargeable aqueous zinc‐ion batteries (ZIBs) with high safety and low‐cost are highly desirable for grid‐scale energy storage, yet the energy storage mechanisms in the current cathode materials are still complicated and unclear. Hence, several sodium vanadates with NaV3O8‐type layered structure (e.g., Na5V12O32 and HNaV6O16·4H2O) and β‐Na0.33V2O5‐type tunneled structure (e.g., Na0.76V6O15) are constructed and the storage/release behaviors of Zn2+ ions are deeply investigated in these two typical structures. It should be mentioned that the 2D layered Na5V12O32 and HNaV6O16·4H2O with more effective path for Zn2+ diffusion exhibit higher ion diffusion coefficients than that of tunneled Na0.76V6O15. As a result, Na5V12O32 delivers higher capacity than that of Na0.76V6O15, and a long‐term cyclic performance up to 2000 cycles at 4.0 A g?1 in spite of its capacity fading. This work provides a new perspective of Zn2+ storage mechanism in aqueous ZIB systems. 相似文献
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GP37蛋白结构分析与昆虫病毒分子进化的关系 总被引:5,自引:0,他引:5
The gp37 gene from LsMNPV has been sequenced and the deduced amino acid sequence was compared with other GP37 amino acid sequences from 8 insect viruses. The maximum homology of amino acid sequences and the conserved structural regions were analyzed with PROSIS software. The relationship of evolution of 9 insect viruses was discussed and the evolutionary tree was drawned. 相似文献
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Guozhao Fang Zhuoxi Wu Jiang Zhou Chuyu Zhu Xinxin Cao Tianquan Lin Yuming Chen Chao Wang Anqiang Pan Shuquan Liang 《Liver Transplantation》2018,8(19)
Sodium‐ion batteries (SIBs) are promising next‐generation alternatives due to the low cost and abundance of sodium sources. Yet developmental electrodes in SIBs such as transition metal sulfides have huge volume expansion, sluggish Na+ diffusion kinetics, and poor electrical conductivity. Here bimetallic sulfide (Co9S8/ZnS) nanocrystals embedded in hollow nitrogen‐doped carbon nanosheets are demonstrated with a high sodium diffusion coefficient, pseudocapacitive effect, and excellent reversibility. Such a unique composite structure is designed and synthesized via a facile sulfidation of the CoZn‐MOFs followed by calcination and is highly dependant on the reaction time and temperature. The optimized Co1Zn1‐S(600) electrode exhibits excellent sodium storage performance, including a high capacity of 542 mA h g?1 at 0.1 A g?1, good rate capability at 10 A g?1, and excellent cyclic stability up to 500 cycles for half‐cell. It also shows potential in full‐cell configuration. Such capabilities will accelerate the adoption of sodium‐ion batteries for electrical energy applications. 相似文献
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Sodium‐Ion Batteries: Observation of Pseudocapacitive Effect and Fast Ion Diffusion in Bimetallic Sulfides as an Advanced Sodium‐Ion Battery Anode (Adv. Energy Mater. 19/2018) 下载免费PDF全文
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三峡库区地方特有维管植物研究 总被引:2,自引:0,他引:2
三峡库区位于我国中亚热带北部 ,既是我国植物种类丰富的地区之一 ,又是我国第三纪古老植物的残遗分布中心之一。从中国特有属的分布来看 ,该区被认为是中国三大特有植物分布中心之一的“川东 -鄂西”的分布中心〔1〕。该区的特有植物是在长期的自然历史发展过程中形成的 ,它们的存在与分布在科研上具有重要价值 ,而且较多的种类又是重要的资源植物 ,在开发利用上亦至关重要。因此 ,作者根据近年来在三峡库区实地调查的结果 ,结合有关文献 ,对三峡库区的地方特有维管植物的种类及分布特点进行了分析与探讨 ,为有效地保护三峡库区特有植物资… 相似文献