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铈,镍(1:5) | 12323-63-6

中文名称
铈,镍(1:5)
中文别名
——
英文名称
Cerium, compd. with nickel (1:5)
英文别名
cerium;nickel
铈,镍(1:5)化学式
CAS
12323-63-6
化学式
CeNi5
mdl
——
分子量
433.57
InChiKey
MSEMTNXKEJRLSX-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    -0.01
  • 重原子数:
    6
  • 可旋转键数:
    0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.0
  • 拓扑面积:
    0
  • 氢给体数:
    0
  • 氢受体数:
    0

反应信息

  • 作为反应物:
    描述:
    铈,镍(1:5)氢气 以 neat (no solvent) 为溶剂, 生成
    参考文献:
    名称:
    Hysteresis and related irreversible phenomena in CeNi5-based intermetallic hydrides
    摘要:
    The effect of alloy annealing, particle size and hydrogenation temperature on the behaviour of CeNi5 during the first absorption-desorption cycles has been studied using pressure-composition isotherm measurement and XRD analysis. It has been shown that the particle size of the sample did not affect the thermodynamic parameters of the activation and different behaviour of the as-cast and annealed samples very likely was caused by initial strain and crystallite size of the virgin alloys. Enthalpy and entropy changes in the first hydrogenation and dehydrogenation reactions have been calculated from the temperature dependence of the fugacity values corresponding to the plateau pressures. Activation peculiarities of the CeNi5-H-2 system have been discussed in comparison with the literature data on LaNi5. (C) 2003 Elsevier B.V. All rights reserved.
    DOI:
    10.1016/s0925-8388(03)00438-9
  • 作为产物:
    描述:
    nickel(II) oxidecerium(IV) oxide 在 CaCl2 作用下, 以 melt 为溶剂, 生成 铈,镍(1:5)
    参考文献:
    名称:
    SOM法直接从混合氧化物中电化学制备CeNi 5和La x Ce 1- x Ni 5合金
    摘要:
    一种新颖的SOM工艺被用来直接从混合氧化物制备CeNi 5和La x Ce 1- x Ni 5储氢合金。电解还原在1000℃的熔融CaCl 2系统中进行。通过分析电解中间产物的化学组成和相组成研究了还原机理。结果表明,NiO–CeO 2的还原可分为两个步骤:首先,NiO还原成Ni,CeO 2与CaCl 2反应形成CeOCl,然后Ni与CeOCl反应导致CeNi 5的形成。。发现降低速率增加,同时降低了混合氧化物颗粒的压力负荷。此外,如果压力负荷低于10MPa,则不能产生CeNi 5。还发现,通过SOM工艺可以将NiO–CeO 2的颗粒完全还原为CeNi 5合金,这比FFC工艺要好得多。 此处报道的成功制备La x Ce 1- x Ni 5(x = 0-1)合金表明,SOM工艺对于生产这种合金的工业应用可能很有希望。
    DOI:
    10.1016/j.electacta.2010.01.008
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文献信息

  • The performances of La1−xCexNi5 (0≤x≤1) hydrogen storage alloys studied by powder microelectrode
    作者:Zuxian Tan、Yifu Yang、Yan Li、Huixia Shao
    DOI:10.1016/j.jallcom.2006.11.063
    日期:2008.4
    affected by the Ce content. As the Ce content in the LaCeNi alloy increased, the discharge potential of alloys shifted towards negative direction, the activity of electron transfer reaction of hydrogen oxidation on the alloy surface increased, the maximum current output ability of the alloy and the hydrogen diffusion coefficient in the bulk of alloy were improved, and the capacity decay rate was reduced
    采用XRD方法和粉末微电极技术(PME)系统研究了AB型储氢合LaCeNi(0≤≤1)的结构和电化学性能。组织分析结果表明,所有合均具有典型的CaCu单相组织。随着值的增加,细胞参数和细胞体积减小,但细胞参数略有增加。 PME研究结果表明,LaNi中Ce元素替代La可以增大活化循环数,但在较高Ce含量下,活化循环数几乎不受Ce含量的影响。随着LaCeNi合中Ce含量的增加,合的放电电位向负方向移动,合表面氢氧化电子转移反应活性增强,合的最大电流输出能力和氢扩散系数增大。合的体积得到改善,容量衰减率显着降低。
  • Mixed valence in CeNi5; effects of dilution and chemical pressure
    作者:S. Raaen、R.D. Parks
    DOI:10.1016/0038-1098(83)90958-4
    日期:1983.10
    the (mixed) valence of the system R 0.9 Ce 0.1 Ni 5 , where R = La, Pr, Gd, Er or Lu. The valences obtained spanned only the narrow range 3.13–3.16 in going from La to Lu, compared to 3.15 for the stoichiometric compound CeNi 5 . These results establish the extreme insensitivity of the mixed valence of CeNi 5 to dilution effects, and, hence, that is a local site phenomenon. Moreover, the valence is relatively
    摘要 X 射线 L III 吸收测量用于确定系统 R 0.9 Ce 0.1 Ni 5 的(混合)价数,其中 R = La、Pr、Gd、Er 或 Lu。与化学计量化合物 CeNi 5 的化合价为 3.15 相比,从 La 到 Lu 的化合价仅跨越 3.13-3.16 的狭窄范围。这些结果表明,CeNi 5 的混合价对稀释效应极其不敏感,因此,这是一种局部位点现象。此外,化合价对化学压力引起的晶格常数变化相对不敏感,高达 3% 或 4%。
  • Specific features of the thermodynamics of activation in the LaNi5-H2 and CeNi5-H2 systems
    作者:N. A. Yakovleva、S. N. Klyamkin、O. A. Veremeeva、A. A. Tsikhotskaya
    DOI:10.1007/s11172-005-0228-1
    日期:2005.1
    Using heat conducting Tian—Calvet calorimetry and volumetric measurements, the first hydrogen absorption—desorption cycles in the LaNi5-H2 and CeNi5-H2 systems were studied. The pressure—composition isotherms were plotted, the equilibrium pressures of hydrogen along the absorption and desorption branches and in the region of hysteresis for different activation steps were determined, and the enthalpies of phase transitions α → β and β → α were calculated. The profiles of the heat evolution curves were analyzed. It was concluded that the mechanism of the reactions studied changes upon activation.
    利用导热天-卡尔维量热法和体积测量法,研究了 LaNi5-H2 和 CeNi5-H2 体系中的第一个氢吸收-解吸循环。绘制了压力-成分等温线,确定了不同活化步骤下沿吸收和解吸分支以及滞后区域的氢平衡压力,并计算了相变焓 α → β 和 β → α。分析了热演化曲线的轮廓。结论是所研究的反应机理在活化时发生了变化。
  • Cocktail effect on RT5-type (R = rare earth, T = 3d transition metal) high entropy intermetallic compounds
    作者:Linhan Yin、Yongquan Guo、Xinpeng Guo
    DOI:10.1016/j.jmmm.2022.169883
    日期:2022.12
    intermetallic compounds due to their single-phase characteristics and high configuration entropy. The magnetic cocktail effect is observed in magnetic measurements. These intermetallic compounds show low-temperature magnetic transition and field-induced ferromagnetic characteristics. The cocktail effect is suggested to be modulated by the spins with random directions at rare earth and transition metal sublattices
    正常成分为(Sm1/2Ce1/2)(Co1/3Cu1/3Ni1/3)5、(Sm1/2Pr1/2)(Co1/3Cu1/3Ni1/3)5、(Sm1/2Nd1/2)(Co1/3Cu1/3Ni1/3)5、(Sm1/3Ce1/3Pr1/3)(Co1/3Cu1/3Ni1/3)5和(Sm1/3Ce1/3Nd1/3)(Co1/3Cu1/3 Ni1/3)5的合是通过混合RCo5、RNi5设计的。 和 RCu5 用于研究它们的鸡尾酒效果。这些设计的合是通过真空电弧熔炼技术制备的。它们的单相特性通过具有能量色散光谱的 X 射线衍射和扫描电子显微镜进行了实验证实,也被报道的高熵合单相形成规则理论证实了:原子半径差在 6% 以内,非正混合焓,高构型熵在 1.50R 以上。由于其单相特性和高构型熵,所设计的合被认为是高熵属间化合物。在磁性测量中观察到磁性混合物效应。这些属间化合物表现出低温磁转变和场感应
  • Characterization and hydrogenation of CeNi5−xCrx (x=0, 1, 2) alloys
    作者:R.K. Jain、Ankur Jain、Shivani Agarwal、N.P. Lalla、V. Ganesan、D.M. Phase、I.P. Jain
    DOI:10.1016/j.jallcom.2006.05.013
    日期:2007.3
    structure and the elemental composition of different alloys have been investigated by means of XRD, SEM and EDX techniques. The unit cell volume of the alloy was found to increase with increasing Cr content. In order to calculate the hydrogen storage capacity pressure–composition isotherm has been investigated for CeNi 5− x Cr x ( x1, 2) alloys in the temperature and pressure ranges of 293 ≤ T ≤ 333 K
    摘要 通过压力-成分等温线测量,研究了CeNi 5 属间化合物中Cr 部分取代Ni 的影响。在气气氛中使用标准电弧熔化技术由高纯度材料制备样品。通过XRD、SEM和EDX技术研究了不同合的结构和元素组成。发现合的晶胞体积随着 Cr 含量的增加而增加。为了计算储氢能力,研究了 CeNi 5− x Cr x ( x = 1, 2) 合在 293 ≤ T ≤ 333 K 和 0.5 ≤ P ≤ 35 bar 的温度和压力范围内的压力-成分等温线, 分别。不同合的 P-C-T 等温线清楚地表明存在三个区域 α 、α + β 和 β 。系统的焓和熵也已使用范特霍夫图计算。还研究了焓和熵随氢含量的变化。
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