Results 31 to 40 of about 120,884 (137)
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Biodegradable zinc (Zn)‐based materials are considered promising candidates for orthopedic applications because of their favorable mechanical properties, controllable biodegradability, and good biosafety profiles. However, their clinical translation is limited by early‐stage corrosion‐induced cytotoxicity and inflammation, as well as ...
Jinlong Mao +9 more
wiley +1 more source
Wafer‐Scale Amorphous g‐C3N4 With Broadly Tunable Dielectric Properties for 2D Electronics
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Two‐dimensional (2D) semiconductors are regarded as promising candidates for next‐generation electronics due to their superior electrostatic control; however, their performance is severely constrained by the lack of suitable dielectric materials.
Binyin Gao +13 more
wiley +1 more source
, 1999 本论文首先分别采用共沉淀法、水解法和溶胶-凝胶法（Sol-Gel）三种方法制备钇稳定氧化锆（YSZ）电解质超细粉末。考察了不同添加剂对YSZ电泳沉积膜烧结性能的影响。结果表明能产生液相烧结的添加剂，如：CaO·MgO·2SiO_2和Bi_2O_3能使YSZ膜烧结性能有显著的提高。研究了用电沉积法制备Y(OH)_3-Zr(OH)_4的各种影响因素，得到了制备均一紧密的氢氧化物薄膜的优化工艺条件。研究了电泳沉积-电沉积结合法制备致密YSZ膜的过程。首先，利用电泳沉积-烧结制备一层YSZ膜 ...
赁泓巍
core
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Defect engineering has been widely demonstrated as an effective strategy for enhancing the activity of OER metal catalysts, among which the introduction of twin boundaries (TBs) has proven particularly efficient. However, single‐type defects offer limited performance enhancement.
Wentao Cai +11 more
wiley +1 more source
, 2017 当前已经商业化的锂电池负极材料，主流产品为人造石墨和改性天然石墨，还有少量产业化应用的钛酸锂，可以基本满足一般电子产品、储能电池的要求。但由于它们的理论容量均不高，不能满足对电池储能具有更高要求的电动汽车及混合动力汽车等领域的发展需求。因此需要开发更多的具有高容量的电极材料，来提升电池能量密度。本课题选取锗作为研究对象，它的理论储锂容量高达1600mAh/g，远远高于石墨（372mAh/g），非常有潜力提高锂电池的性能。然而，锗负极材料在应用到锂电池中时，也面临着较大的问题与挑战，即在充放电过程中 ...
张小红
core
, 2011 根据泾阳泾河高漫滩JYa沉积剖面的野外观察,128个样品的粒度、元素与化合物含量实验分析,以及历史文献对该区洪水的记载,研究了泾阳泾河高漫滩剖面沉积特征与洪水变化。结果表明,泾阳泾河高河漫滩沉积物发育良好,以粗粉砂、极细砂为主,各组分在整个剖面上变化明显,分辨率高,能够清晰地指示各次的洪水以及降水量的变化。JYa剖面分为18个沉积阶段,指示了18次大小不同的洪水和18个降水较多的年份。JYa剖面18个洪水沉积阶段的规模由大到小的变化顺序为:第14层>12层>13层>8层>5层>1层>2层>4层>9层 ...
周杰 +4 more
core +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Engineering of the catalyst interface and modulation of transition–metal d–band play critical roles in the electrocatalytic hydrogen evolution reaction (HER). Herein, a synthetic strategy is developed to fabricate nitrogen‐doped carbon nanotubes (N–CNTs)–supported Ni3Se4–CeO2 heterojunction catalysts through a facile chemical vapor deposition (
Zhiqiang Sun +10 more
wiley +1 more source
Kinetic‐Controlled Growth of Iron Chalcogenide Nanosheets Featuring Besnus Transition
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Two‐dimensional (2D) Fe‐based nanosheets have sparked wide attention owing to exotic magnetism, superconductivity and topological phases. However, the synthesis of 2D FemXn (X = Te/Se/S, m, n: integer), typically in a non‐stoichiometric ratio, remains challenging because of narrow thermodynamic windows.
Hongmei Zhang +11 more
wiley +1 more source
Dianci bileiqi绝缘子表面污秽积聚会降低其绝缘性能，获得瓷绝缘子表面污秽积聚规律对输电线路的运行和维护具有重要意义。考虑污秽颗粒在绝缘子表面的碰撞反弹过程，建立了瓷绝缘子多物理场耦合积污模型，与碰撞即黏附模型进行对比，分析了不同因素对积污的影响，以研究污秽颗粒在绝缘子表面的沉积情况。结果表明，颗粒粒径、电压和相对湿度的增大有利于颗粒沉积，其中直流电压对积污的影响明显大于交流电压，直流正极性电压由5kV增大到55kV时，黏附粒子数增加了86%，而交流电压作用下增加了24%；黏附粒子数随风速的增大先增加后减小 ...
赵冲 +4 more
doaj +2 more sources
HEDP、PBTCA、PAA对CaCO3垢抑制作用的电化学研究
Gongye shui chuli, 2021 采用线性扫描伏安法、计时电流法、电化学阻抗谱等电化学手段研究羟基亚乙基二膦酸（HEDP）、2-磷酸基-1，2，4-三羧酸丁烷（PBTCA）和聚丙烯酸（PAA）的阻垢效果以及利用剩余电流密度计算阻垢率方法的可行性。结果表明，利用剩余电流密度计算得到的阻垢率与电化学阻抗法得到的阻垢率结果相近，阻垢效果均为PBTCA>HEDP>PAA。机理探究结果表明，CaCO3垢通过电沉积过程在钛合金电极表面形成文石晶体，阻垢剂的加入可通过晶体畸变作用抑制文石晶体的正常生长，使其转化为不稳定的球霰石晶体 ...
张可桂 +6 more
doaj +2 more sources