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| 1 | 3D graphene foam-supported cobalt phosphate and borate electrocatalysts for high-efficiency water oxidation显示文摘The cobalt phosphate-/cobalt borate-based oxygen-evolving catalysts(OECs) are the important class of earth-abundant electrocatalysts that can operate with high activity for water splitting under benign conditions.This article reports the integration of cobalt phosphate(CoPi) and cobalt borate(Co-Bi) OECs with three-dimensional(3D) graphene foam(GF) for the electrocatalytic water oxidation reaction. The GF showed a unique advantage to serve as a highly conductive 3D support with large capacity for anchoring and loading Co-OECs, thereby facilitating mass and charge transfer due to the large amount of active sites provided by the 3D graphene scaffold. As a result, this integrated system of GF and Co-OECs exhibits synergistically enhanced catalytic activity. The overpotential(g) of Co-Pi and Co-Bi/graphene catalysts is about 0.390 and0.315 V in neutral solutions, respectively. Besides, the integrated Co-OECs/graphene catalysts have also exhibited improved and stable oxygen evolution catalytic ability in alkaline solution. | Min Zeng Hao Wang Chong Zhao Jiake Wei Wenlong Wang Xuedong Bai | 2015 | Science Bulletin2015，60，16： | 10 |
| 2 | Current research on pharmacologic and regenerative therapies for osteoarthritis显示文摘Osteoarthritis(OA)is a degenerative joint disorder commonly encountered in clinical practice,and is the leading cause of disability in elderly people.Due to the poor self-healing capacity of articular cartilage and lack of specific diagnostic biomarkers,OA is a challenging disease with limited treatment options.Traditional pharmacologic therapies such as acetaminophen,non-steroidal anti-inflammatory drugs,and opioids are effective in relieving pain but are incapable of reversing cartilage damage and are frequently associated with adverse events.Current research focuses on the development of new OA drugs(such as sprifermin/recombinant human fibroblast growth factor-18,tanezumab/monoclonal antibody againstβ-nerve growth factor),which aims for more effectiveness and less incidence of adverse effects than the traditional ones.Furthermore,regenerative therapies(such as autologous chondrocyte implantation(ACI),new generation of matrix-induced ACI,cell-free scaffolds,induced pluripotent stem cells(iPS cells or iPSCs),and endogenous cell homing)are also emerging as promising alternatives as they have potential to enhance cartilage repair,and ultimately restore healthy tissue.However,despite currently available therapies and research advances,there remain unmet medical needs in the treatment of OA.This review highlights current research progress on pharmacologic and regenerative therapies for OA including key advances and potential limitations. | Wei Zhang Hongwei Ouyang Crispin R Dass Jiake Xu | 2015 | Bone Research2015，3，4： | 9 |
| 3 | Real-time in situ TEM studying the fading mechanism of tin dioxide nanowire electrodes in lithium ion batteries显示文摘在锂离子电池的电极很吸引了的锡二氧化物(SnO2 ) 的褪色的机制注意,它为电池应用很重要。在这份报纸,单个 SnO2 nanowires 的电气化学的 lithiation-delithiation 周期在高分辨率的传播电子显微镜学(TEM ) 在 situ 被进行。在有 SnO2 nanowire 电极上的 170%300% 的扩大的体积的主要变化在电气化学的骑车在第一 lithiation 进程期间被观察,包括到 Li2O 矩阵和活跃的锂的 SnO2 先锋的变换反应与李一起招待 Sn 的 Sn,和 alloying 形成易碎的 Li-Sn 合金。SnO2 nanowire 电极被使倾向在开始的二个周期受不了热逃走的状况。在骑车期间,形态学和 SnO2 nanowire 电极的作文进化被记录。电极的周期的 lithiation 和 delithiation 表明了在 Li13Sn5 和 Sn 之间的阶段转变。金属性的 Sn 簇被形成,他们与增加扩大的尺寸骑车乘。Sn 簇的有害聚集在 SnO2 nanowire 电极引起了弄成粉,它为电子和锂离子打破了传导和运输路径。在 situ TEM 即时揭示褪色的机制在锂离子电池为 SnO2 nanowire 电极的可行设计提供重要指南。 | WANG LiFen XU Zhi YANG ShiZe TIAN XueZeng WEI JiaKe WANG WenLong BAI XueDong | 2013 | Science China(Technological Sciences)2013，56，11： | 5 |
| 4 | Filament growth dynamics in solid electrolyte-based resistive memories revealed by in situ TEM显示文摘底抵抗的记忆被考虑了是有在非不稳定的存储器,逻辑电路和 neuromorphic 计算的应用程序的未来信息技术的一个潜在的候选人的稳固的电解质。一个传导性的细丝模型通常被接受了是为抵抗切换的内在的机制。然而,如此的传导性的细丝的生长动力学仍然不充分被理解。这里,我们与电场分发和几个另外的因素由细丝生长的相关观察探索细丝生长的可控制性。细丝生长行为被记录了在 situ 传播电子显微镜学使用。由学习即时记录细丝生长行为和形态学,我们能根据我们的观察模仿电场分发。另外的因素也被显示了影响细丝生长,例如加热的朱尔和电解质基础结构。这个工作提供卓见进进 nanoionic 的进一步的功能的传导性的细丝和愿望帮助指南研究的可控制的生长抵抗记忆。 | Xuezeng Tian Lifen Wang Jiake Wei Shize Yang Wenlong Wang Zhi Xu Xuedong Bai | 2014 | Nano Research2014，7，7： | 4 |
| 5 | Electrochemical solid-state amorphization in the immiscible Cu-Li system显示文摘As a typical immiscible binary system, copper (Cu) and lithium (Li) show no alloying and chemical intermixing under normal circumstances. Here we show that, when decreasing Cu nanoparticle sizes into ultrasmall range, the nanoscale size effect can play a subtle yet critical role in mediating the chemical activity of Cu and therefore its miscibility with Li, such that the electrochemical alloying and solidstate amorphization will occur in such an immiscible system. This unusual observation was accomplished by performing in-situ studies of the electrochemical lithiation processes of individual CuO nanowires inside a transmission electron microscopy (TEM). Upon lithiation, CuO nanowires are first electrochemically reduced to form discrete ultrasmall Cu nanocrystals that, unexpectedly, can in turn undergo further electrochemical lithiation to form amorphous Cu Lixnanoalloys. Real-time TEM imaging unveils that there is a critical grain size (ca. 6 nm), below which the nanocrystalline Cu particles can be continuously lithiated and amorphized. The possibility that the observed solid-state amorphization of Cu-Li might be induced by electron beam irradiation effect can be explicitly ruled out; on the contrary, it was found that electron beam irradiation will lead to the dealloying of as-formed amorphous Cu Lixnanoalloys. | Muhua Sun Jiake Wei Zhi Xu Qianming Huang Yu Zhao Wenlong Wang Xuedong Bai | 2018 | Science Bulletin2018，63，18： | 3 |
| 6 | Towards the controlled CVD growth of graphitic B-C-N atomic layer films: The key role of B-C delivery molecular precursor显示文摘象 Graphene 一样,第三的系统 B-C-N 原子层材料答应高度悦耳的电子性质和潜在的应用程序的过多。然而, B-C-N 原子层的这样远的、试验性的合成通常产出由纯 C 和 BN 领域组成的显微镜的分离阶段的结构。进一步,与同质的原子安排种真正第三的 B-C-N 阶段层证明了很挑战性。这里,在为化学蒸汽免职( CVD )设计一个 bettercontrolled 过程, B-C-N 原子层的生长与最小化的 C 和 BN 阶段分离拍摄,我们选择了 trimethyl borane ( TMB ),有先存在的气体的 organoboron 混合物 B-C 契约,作为分子的先锋到与氨反应(用作氮的硝化作用代理人的 NH 3)气体。这位唯一的 B-C 交货先锋的使用允许高质量、大区域的 B-C-N 原子层电影的成功的合成。而且, TMB/NH 3 反应物联合能由调整二气体的反应物的相对部分压力提供 tunability 的高水平和 B-C-N 原子层的全面化学作文的控制。有限精力差距能在成长得当的 B-C-N 原子层和它的 tunability 被打开的电的运输大小表演实质上依赖于到 BN 原子作文的相对 C。根据小心地控制的实验,我们证明在 TMB 分子的先锋的先存在的 B-C 契约在有效地减少 C 和 BN 阶段分离问题起了一个关键作用,从而便于真正第三的 B-C-N 的形成分阶段执行原子层。 | Hao Wang Chong Zhao Lei Liu Zhi Xu Jiake Wei Wenlong Wang Xuedong Bai Enge Wang | 2016 | Nano Research2016，9，5： | 2 |
| 7 | Recent development of studies on the mechanism of resistive memories in several metal oxides显示文摘Resistive switching random access memories(RRAM)have been considered to be promising for future information technology with applications for non-volatile memory,logic circuits and neuromorphic computing.Key performances of those resistive devices are approaching the realistic levels for production.In this paper,we review the progress of valence change type memories,including relevant work reported by our group.Both electrode engineering and in-situ transmission electron microscopy(TEM)high-resolution observation have been implemented to reveal the influence of migration of oxygen anions/vacancies on the resistive switching effect.The understanding of resistive memory mechanism is significantly important for device applications. | TIAN XueZeng WANG LiFen LI XiaoMin WEI JiaKe YANG ShiZe XU Zhi WANG WenLong BAI XueDong | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，12： | 2 |
| 8 | A hybrid approach of support vector machine with differential evolution optimization for water quality prediction显示文摘 | Lli Jiake Wang Xuan Zou Wei | 2013 | Journal of Convergence Information Tech- nology2013，8，2： | 1 |
| 9 | A hybrid approach of support vector machine with differential evolution optimization for water quality prediction显示文摘 | Lv Jiake Wang Xuan Zou Wei | 2013 | Journal of Convergence Information Technology2013，8，2： | 1 |
| 10 | Temporal variation of soil water and its influencing factors in hilly area of Chongqing,China显示文摘The paper studied the temporal variation of soil water content and its influencing factors in hilly area of Chongqing by the yearly data of 2006 and 2007.According to precipitation anomaly percentage,the year 2006 was a dry year and 2007 a normal year.In the dry year 2006,the variations of soil moisture in all three layers(0-10 cm,10-20 cm,20-40 cm)were medium(10%30%),and those of the two deeper layers were weak(CV<10%).Hence,the seasonal variation of soil moisture in the humid area was large in the dry year and small in the wet year.The probability distributions of soil moisture in all three layers in both dry and normal years showed single-peak shapes.However,peak locations and values varied with different layers and years.Among factors affecting the temporal variation of soil moisture in the 0-10 cm layer,during March to May,the meteorological factors including temperature,sunshine and precipitation were all inversely correlated with soil water content variation.The correlations with average temperature and accumulated temperature were both highly significant P<0.01(P=0.00).The inverse correlations with sunshine and precipitation were significant P<0.05(P=0.01).Among soil physical properties,except for bulk density which was inversely correlated with soil moisture,all other properties were positively correlated.Organic material was positively correlated with soil moisture,which suggested that organics had the sponge effect and contributed to soil water storage and movement.During the period of June to September,there was no significant correlation between soil water content and total storage.The meteorological factors of temperature,accumulated temperature and sunshine were all inversely and highly significantly correlated with soil water content P<0.01(P=0.00). | Zhong Shouqin Zhang Weihua Lv Jiake Wei Chaofu | 2014 | International Journal of Agricultural and Biological Engineering2014，7，4： | 1 |
| 11 | Anti-catabolic effect of caffeic acid phenethyl ester, an active component of honeybee propolis on bone loss in ovariectomized mice: a micro-computed tomography study and histological analysis显示文摘 | Duan Wangping Wang Qing Li Fang Xiang Chuan Zhou Lin Xu Jiake Feng Haotian Wei Xiaochun | 2014 | Chinese Medical Journal2014，，22： | 0 |
| 12 | In-situ TEM study of the dynamic behavior of the graphene-metal interface evolution under Joule heating显示文摘The dynamic behavior of the interface between few layer graphene(FLG) and tungsten metal tips under Joule heating has been studied by in-situ transmission electron microscopy(TEM) method. High-resolution and real-time observations show the tungsten tip ‘swallow' carbon atoms of the FLG and ‘spit' graphite shells at its surface. The tip was carbonized to tungsten carbide(WC, W_2 C and WC_x) after this process. A carbon diffusion mechanism has been proposed based on the diffusion of carbon atoms through the tungsten tip and separation from the surface of the tip. After Joule heating, the initial FLG-metal mechanical contact was transformed to FLG-WCx-W contact, which results in significant improvement on electrical conductivity at the interface. | WEI JiaKe XU Zhi WANG Hao WANG WenLong BAI XueDong | 2016 | Science China(Technological Sciences)2016，59，7： | 0 |
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