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| 1 | Progress on Sn-based thin-film anode materials for lithium-ion batteries显示文摘Thin-film lithium-ion batteries are the most competitive power sources for various kinds of micro-electro-mechanical systems and have been extensively researched.The present paper reviews the recent progress on Sn-based thin-film anode materials,with particular emphasis on the preparation and performances of pure Sn,Sn-based alloy,and Sn-based oxide thin films.From this survey,several conclusions can be drawn concerning the properties of Sn-based thin-film anodes.Pure Sn thin films deliver high reversible capacity but very poor cyclability due to the huge volume changes that accompany lithium insertion/extraction.The cycle performance of Sn-based intermetallic thin films can be enhanced at the expense of their capacities by alloying with inactive transition metals.In contrast to anodes in which Sn is alloyed with inactive transition metals,Sn-based nanocomposite films deliver high capacity with enhanced cycle performance through the incorporation of active elements.In comparison with pure Sn anodes,Sn-based oxide thin films show greatly enhanced cyclability due to the in situ formation of Sn nanodispersoids in an Li2O matrix,although there is quite a large initial irreversible capacity loss.For all of these anodes,substantial improvements have been achieved by micro-nanostructure tuning of the active materials.Based on the progress that has already been made on the relationship between the properties and microstructures of Sn-based thin-film anodes,it is believed that manipulating the multi-phase and multi-scale structures offers an important means of further improving the capacity and cyclability of Sn-based alloy thin-film anodes. | HU RenZong LIU Hui ZENG MeiQin LIU JiangWen ZHU Min | 2012 | Chinese Science Bulletin2012，57，32： | 8 |
| 2 | A Novel Duplex Low-temperature Chromizing Process at 500℃显示文摘在 500 °C 的一个优化低温度的渗铬过程经由由先锋血浆 nitriding 组成的一个双渗铬过程与 0.45 wt %碳在平凡的中等碳的钢上被认识到,并且跟随的盐洗澡 thermoreactive 免职和散开( TRD )有薄散开层的渗铬 process.CrN 层在下面被形成。双渗铬过程被光显微镜学(OM ) 学习,扫描电子显微镜学(SEM ) ,精力散 X 光检查光谱学(版本) , X 光检查衍射(XRD ) ,和传播电子显微镜学(TEM ) 。在 500 °C 的渗铬速度被增加更多的 Cr-Fe 粉末进盐洗澡成功地提高,这被发现,并且 CrN 层在厚度与一般水准 8.1 亩 m 以优先的氮化物混合物 layer.A CrN 层的成本形成了,在微坚硬的 1382 HV_( 0.01 )被双渗铬更为 24 h.Further 在 500 °C 在底层上形成, CrN 层由 nanocrystalline CrN 谷物组成了。 | Huiliang CAO Cuilan WU Jiangwen LIU Chengping LUO Ganfeng ZOU | 2007 | Journal of Materials Science & Technology2007，23，6： | 3 |
| 3 | Fluorine-substituted O3-type NaNi_(0.4)Mn_(0.25)Ti_(0.3)Co_(0.05)O_(2-x)F_(x) cathode with improved rate capability and cyclic stability for sodium-ion storage at high voltage显示文摘O3-type Na NiO_(2)-based cathode materials undergo irreversible phase transition and serious capacity decay at high voltage above 4.0 V in sodium-ion batteries. To address these challenges, effects of Fsubstitution on the structure and electrochemical performance of Na Ni_(0.4)Mn_(0.25)Ti_(0.3)Co_(0.05)O_(2) are investigated in this article. The F-substitution leads to expanding of interlayer, which can enhance the mobility of Na+. NaNi_(0.4)Mn_(0.25)Ti_(0.3)Co_(0.05)O_(1.92)F_(0.08)(NMTC-F_(0.08)) with the optimal F-substitution degree exhibits much improved rate capability and cyclic stability. It delivers reversible capacities of 177 and 97 m Ah g^(-1) at 0.05 and 5 C within 2.0–4.4 V, respectively. Galvanostatic intermittent titration technique verifies faster kinetics of Na+diffusion in NMTC-F_(0.08). And in-situ XRD investigation reveals the phase evolution of NMTC-F_(0.08), indicating enhanced structural stability results from F-substitution. This study may shed light on the development of high performance cathode materials for sodium-ion storage at high voltage. | Chaojin Zhou Lichun Yang Chaogang Zhou Jiangwen Liu Renzong Hu Jun Liu Min Zhu | 2021 | Journal of Energy Chemistry2021，30，9： | 3 |
| 4 | Preparation and Characteristics of CoreeShell Structure Eu(DBM)_3Phen@SiO_2 Micro-Sphere显示文摘Sphere-shape Eu(DBM)3Phen@SiO2 nanoparticles were fabricated by employing a modified alkaline catalyzed hydrolysis and precipitation method.The silica coated on the particles surface was obtained by means of hydrolysis and condensation of tetraethyl orthosilicate(TEOS).In this study,the particles morphology was analyzed by scanning electron microscopy(SEM) and the surface composition of samples was characterized by X-ray diffraction(XRD) and Fourier transform infrared spectroscopy(FT-IR).It is confirmed that the SiO2 shell has been coated on the rare earth complexes successfully.Moreover,the near-infrared photoluminescence emission analysis on the nanoparticles showed that the SiO2 shell would increase the luminescence intensity of Eu(DBM)3Phen.This is primarily due to the reason that SiO2 shell with chemical inertness can effectively reduce the ion Eu3+ non-radiation transition probabilities,as well as the probability of rare earth luminescence quenching caused by the external medium. | Mingguang Yu Guangxue Chen Jiangwen Liu Baoling Tang Wentao Huang | 2013 | Journal of Materials Science & Technology2013，29，9： | 1 |
| 5 | Land surface emissivity change in China from 2001 to 2010显示文摘陆地表面放射率是在从热红外线的遥感的温度倒置的重要参数之一。用地的复数 L3 水平产品的 MOD11C3,时间空间的数据在中国陆地表面放射率设定因为从 2001 ~ 2010 的 10 年被获得。结果证明在西北沙漠区域的陆地表面放射率在中国是最低的,与小季节的变化。相反,在陆地表面放射率在有重要季节的变化东北中国和北 Xinjiang, Qinghai 西藏高原,长江山谷和东方、南部的中国。在冬季,在东北中国和北 Xinjiang 的陆地表面放射率相对高。Qinghai 西藏高原区域的陆地表面放射率从 11 月在低价值被维持到三月,当它在另外的月内变得更高时。长江山谷,东方、南部的中国,和四川盆的陆地表面放射率从 7 月变化到 10 月,并且在 8 月达到顶点。陆地表面放射率价值能被划分成五个层次:低放射率(0.61630.9638 ) ,中等低的放射率(0.96390.9709 ) ,中等放射率(0.97100.9724 ) ,中等高度的放射率(0.97250.9738 ) ,和高放射率(0.97390.9999 ) 。分别地,有低放射率,中等低的放射率和中等放射率的区域的百分比是大约 20% , 10% 和 20% 。中等高度的放射率区域完成瓷器陆地表面区域的 40%50% 。中等高度的放射率区域的内部年度的变化也是很清楚的,与二座山峰(在春天和秋天) 并且二马槽(在夏天和冬季) 。高放射率区域的内部年度的变化是很重要的,与在冬季(10%) 的一座山峰,当时仅仅 1% 或 2% 在另外的季节。在瓷器陆地表面放射率和温度的时间空间的分发之间有一个清楚的协会:越高放射率,越多降低温度,并且反过来也如此。放射率是任何对象的一个固有的性质,但是它的放射率的精确的值非常取决于它包围环境因素。 | WANG Xinsheng FAN Jiangwen XU Jing LIU Fei GAO Shoujie WEI Xincai | 2012 | Journal of Geographical Sciences2012，22，3： | 1 |
| 6 | Struc- ture and Conductivity of Multi-walled Carbon Nanotube/ Poly(3-hexylthiophene) Composite Films显示文摘 | Musumeci A W Silva G G Liu Jiangwen | 2007 | Polymer2007，48，6： | 1 |
| 7 | 显示文摘 | Chen Xianming Luo Chengping Liu Jiangwen | 2010 | Journal of Functional Materials2010，41，12： | 1 |
| 8 | Assessment of effects of climate change and grazing activity on grassland yield in the Three Rivers Headwaters Region of Qinghai-Tibet Plateau China显示文摘 | Fan Jiangwen Shao Quanqin Liu Jiyuan | | 0，，： | 1 |
| 9 | The cyclin-dependent kinase inhibitor SNS-032 induces apoptosis in breastcancer cells via depletion of Mcl-1 and X-linked inhibitor of apoptosis proteinand displays antitumor activity in vivo显示文摘 | Gui’e Xie Hongping Tang Shaoqing Wu Jingsong Chen Jiangwen Liu Can Liao | 2014 | International Journal of Oncology2014，，2： | 1 |
| 10 | Assessment of e{ects of climate change and grazing activity on grassland yield in the Three Rivers Headwaters Region of Qinghai-Tibet Plateau, China 显示文摘 | FAN Jiangwen SHAO Quanqin LIU Jiyuan | 2010 | Environmental Monitoring and Assessment2010，170，： | 1 |
| 11 | Fuel Tax:14 Years' Expectation显示文摘China was quickening its steps to perfect the domestic pricing mechanism of refined oil products and was in the process of carrying out the fuel tax reform. | Liu Jiangwen | 2009 | China's Foreign Trade2009，，2： | 1 |
| 12 | As- sessment of effects of climate change and grazing activi- ty on grassland yield in the Three Rivers headwaters region of Qinghai-Tibet Plateau, China显示文摘 | Fan Jiangwen Shao Quanqin Liu Jiyuan etal | 2010 | Environ- mental Monitoring and Assessment2010，170，1234： | 1 |
| 13 | Remarkable enhancement in dehydrogenation of MgH2 by a nanocoating of multi-valence Ti-based catalysts显示文摘 | CUI Jie WANG Hui LIU Jiangwen | 2013 | J Mater Chem A2013，18，1： | 1 |
| 14 | Sn buffered by shape memory effect of NiTi alloys as high-performance anodes for lithium ion batteries显示文摘 | Renzong Hu Min Zhu Hui Wang Jiangwen Liu Ouyang Liuzhang Jin Zou | 2012 | Acta Materialia2012，，12： | 1 |
| 15 | Study on the formation mechanism of micro-arc oxidation coatings on magnesium显示文摘 | Chen Xianming Luo Chengping Liu Jiangwen | 2010 | Alloys Materials Science Forum2010，650，： | 1 |
| 16 | An analysis of the discharge mechanism in electrochemical discharge machining of particulatereinforced metal matrix composites显示文摘 | Jiangwen Liu T M Yueand Zhongning Guo | 2010 | International Journal of Machine Tools and Manufacture2010，50，1： | 1 |
| 17 | Assess- ment of effects of climate change and grazing activity on grassland yield in the Three Rivers Headwaters Region of Qinghai--Tibet Plateau, China 显示文摘 | Fan Jiangwen Shao Quanqin Liu Jiquan et at | 2010 | Environmental Monitoring and Assessment2010，170，14： | 1 |
| 18 | In situ formed ultrafine metallic Ni from nickel(Ⅱ) acetylacetonate precursor to realize an exceptional hydrogen storage performance of MgH_(2)-Ni-EG nanocomposite显示文摘It has been well known that doping nano-scale catalysts can significantly improve both the kinetics and reversible hydrogen storage capacity of MgH_(2) . However, so far it is still a challenge to directly synthesize ultrafine catalysts(e.g., < 5 nm), mainly because of the complicated chemical reaction processes. Here, a facile one-step high-energy ball milling process is developed to in situ form ultrafine Ni nanoparticles from the nickel acetylacetonate precursor in the MgH_(2) matrix. With the combined action of ultrafine metallic Ni and expanded graphite(EG), the formed MgH_(2)-Ni-EG nanocomposite with the optimized doping amounts of Ni and EG can still release 7.03 wt.% H_(2) within 8.5 min at 300 ℃ after 10 cycles. At a temperature close to room temperature(50 ℃), it can also absorb 2.42 wt.% H_(2) within 1 h. It can be confirmed from the microstructural characterization analysis that the in situ formed ultrafine metallic Ni is transformed into Mg_(2)Ni/Mg_(2)NiH_4 in the subsequent hydrogen absorption and desorption cycles. It is calculated that the dehydrogenation activation energy of the MgH_(2)-Ni-EG nanocomposite is also reduced obviously in comparison with the pure MgH_(2) . Our work provides a methodology to significantly improve the hydrogen storage performance of MgH_(2) by combining the in situ formed and uniformly dispersed ultrafine metallic catalyst from the precursor and EG. | Shaoyang Shen Liuzhang Ouyang Jiangwen Liu Hui Wang Xu-Sheng Yang Min Zhu | 2023 | Journal of Magnesium and Alloys2023，11，9： | 0 |
| 19 | Boundary Homogenization of a Class of Obstacle Problems显示文摘We study the homogenization of a boundary obstacle problem on a C^(1,α)-domain D for some elliptic equations with uniformly elliptic coefficient matricesγ.For anyε∈R+,■D=Γ∪E,Γ∩∑=Фand Sε■∑with suitable assumptions,we prove that asεtends to zero,the energy minimizer u^(ε) of∫_(D)|γ▽u|^(2) dx,subject to u≥φcp on S_(ε),up to a subsequence,converges weakly in H^(1)(D)to u,which minimizes the energy functional∫D|r▽u|^(2)+∫∑(u-φ)^(2)-μ(x)dS_(x),whereμ(x)depends on the structure of Sεandφis any given function in C∞(D). | Jingzhi Li Hongyu Liu Lan Tang Jiangwen Wang | 2022 | Annals of Applied Mathematics2022，38，2： | 0 |
| 20 | Effect of scandium and zirconium alloying on microstructure and gaseous hydrogen storage properties of YFe_(3)显示文摘RM_(3) compounds(R=rare earth metals,M=transition metals)have rarely been studied for gaseous hydrogen storage applications because of unfavorable thermodynamics.In this work,the hydrogen storage properties of a single-phase YFe_(3)alloy were improved by non-stoichiometric composition and alloying with Sc and Zr.Only the Y_(1.1-y)Sc_(y)Fe_(3)(y=0.22,0.33)alloys consist of a single rhombohedral phase.The Sc substitution for Y leads to the reduction in the unit cell volume of the YFe_(3)phase,and thus significantly increases the dehydriding equilibrium pressure and decreases the dehydrogenation temperature.The alloy Y_(0.77)Sc_(0.33)Fe_(3)delivers a decomposition enthalpy change of 33.54 kJ/mol and a lowest dehydrogenation temperature of 135℃,in comparison with 38.99 kJ/mol and 165℃ for the alloy Y_(1.1)Fe_(3).The Zr substitution causes a similar thermodynamic destabilization effect,but the composition and microstructure of Y-Zr-Fe alloys need to be further optimized. | Zhikun Fang Hui Wang Jiangwen Liu Liuzhang Ouyang Min Zhu | 2022 | Journal of Rare Earths2022，40，3： | 0 |
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