摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

cobalt monoarsenide

中文名称
——
中文别名
——
英文名称
cobalt monoarsenide
英文别名
cobalt arsenide;Arsane;cobalt;arsane;cobalt
cobalt monoarsenide化学式
CAS
——
化学式
AsCo
mdl
——
分子量
133.915
InChiKey
UXATXIQOAUECTI-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):
    -1.19
  • 重原子数:
    2
  • 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:
    cobalt monoarsenidebarium 以 neat (no solvent) 为溶剂, 生成
    参考文献:
    名称:
    BaT2As2 single crystals (T=Fe, Co, Ni) and superconductivity upon Co-doping
    摘要:
    The crystal structure and physical properties of BaFe2As2, BaCo2As2, and BaNi2As2 single crystals are surveyed. BaFe2As2 gives a magnetic and structural transition at T-N = 132(1) K, BaCo2As2 is a paramagnetic metal, while BaNi2As2 has a structural phase transition at T-0 = 131 K, followed by superconductivity below T-c = 0.69 K. The bulk superconductivity in Co-doped BaFe2As2 below T-c = 22 K is demonstrated by resistivity, magnetic susceptibility, and specific heat data. In contrast to the cuprates, the Fe-based system appears to tolerate considerable disorder in the transition metal layers. First principles calculations for BaFe1.84Co0.16As2 indicate the inter-band scattering due to Co is weak. Published by Elsevier B.V.
    DOI:
    10.1016/j.physc.2009.03.025
  • 作为产物:
    描述:
    N,N'-bis-tert-butyl-2-[tetracarbonyl-cobalt(1)]-1,3,2-diazarsolidine 以 gas 为溶剂, 生成 cobalt monoarsenide
    参考文献:
    名称:
    一种新型单源前体化合物的低温有机金属化学气相沉积 CoAs 薄膜
    摘要:
    报道了一种新的结构定义的前体化合物,用于 CoAs 薄膜的低温金属有机化学气相沉积 (MOCVD)。容易获得的 1,3-双(叔丁基)-2-[四羰基-钴(-l)]-1,3,2-二氮杂环丙烷通过热壁低压 CVD 分解。在低至 210 °C 的温度下,形成了保留前体化学计量比 (Co:As=1/1) 的砷化钴薄膜。电子显微照片显示均匀的薄膜,能量色散 X 射线光谱和俄歇电子光谱证实了它们的整体组成,粉末衍射图和电导率测量证明了它们的结晶度和电性能。
    DOI:
    10.1063/1.115455
点击查看最新优质反应信息

文献信息

  • A new chemical route to prepare nanocrystalline cobalt monoarsenide
    作者:C. Wang、X.F. Qian、X.M. Zhang、Y.D. Li、Y. Xie、Y.T. Qian
    DOI:10.1016/s0025-5408(99)00098-7
    日期:1999.5
    A low-temperature solvothermal reduction process to nanocrystalline CoAs is reported here. All the precursors are easily accessible. The formation and crystalline temperature of CoAs could be as low as 140°C. Powder X-ray diffraction (XRD) shows a single phase of CoAs. The average particle size observed from transmission electron micrography (TEM) is about 18 nm. Elemental analysis and X-ray photoelectron
    本文报道了纳米晶 CoAs 的低温溶剂热还原过程。所有的前体都很容易获得。CoAs 的形成和结晶温度可低至 140°C。粉末 X 射线衍射 (XRD) 显示单相 CoAs。从透射电子显微照片 (TEM) 观察到的平均粒径约为 18 nm。利用元素分析和 X 射线光电子能谱 (XPS) 来确定产品的化学成分。
  • Liquid Ammonia Mediated Metathesis:  Synthesis of Binary Metal Chalcogenides and Pnictides
    作者:G. A. Shaw、I. P. Parkin
    DOI:10.1021/ic010648s
    日期:2001.12.1
    valent metal halides to liquid ammonia solutions of disodium chalcogenide (Na(2)E; E = S, Se, Te) afforded a range of both crystalline (PbE (E = S, Se, Te), TlE (E = S, Se), Tl(5)Te(3), Ag(2)E (E = S, Se, Te)) and X-ray amorphous (MS (M = Ni, Cu, Zn, Cd, Hg), M(2)E(3) (M = Ga, In; E = S, Se, Te), HgE (E = Se, Te), CuE (E = S, Se, Te), Cu(2)S) metal chalcogenides in good yield (95%). Reactions between
    将化学计量的低价金属卤化物添加到硫属元素二硫化钠(Na(2)E; E = S,Se,Te)的液态氨溶液中可得到一系列的两种晶体(PbE(E = S,Se,Te),TlE (E = S,Se),Tl(5)Te(3),Ag(2)E(E = S,Se,Te))和X射线非晶态(MS(M = Ni,Cu,Zn,Cd, Hg),M(2)E(3)(M = Ga,In; E = S,Se,Te),HgE(E = Se,Te),CuE(E = S,Se,Te),Cu(2 )S)金属硫属元素化物,收率良好(95%)。液态氨中的金属卤化物和钠化钠(Na(3)Pn; Pn = As,Sb)之间的反应也提供了X射线无定形物质(M(3)Pn(2),M = Zn,Cd; MPn,M = Fe,Co,Ni),收率高(95%)。通过用CS(2)和蒸馏水洗涤,可以分离金属硫属元素化物和肽。所有反应在36小时内完成。产品通过X
  • Cobalt–metalloid alloys for electrochemical oxidation of 5-hydroxymethylfurfural as an alternative anode reaction in lieu of oxygen evolution during water splitting
    作者:Jonas Weidner、Stefan Barwe、Kirill Sliozberg、Stefan Piontek、Justus Masa、Ulf-Peter Apfel、Wolfgang Schuhmann
    DOI:10.3762/bjoc.14.121
    日期:——

    The electrochemical water splitting commonly involves the cathodic hydrogen and anodic oxygen evolution reactions (OER). The oxygen evolution reaction is more energetically demanding and kinetically sluggish and represents the bottleneck for a commercial competitiveness of electrochemical hydrogen production from water. Moreover, oxygen is essentially a waste product of low commercial value since the primary interest is to convert electrical energy into hydrogen as a storable energy carrier. We report on the anodic oxidation of 5-hydroxymethylfurfural (HMF) to afford the more valuable product 2,5-furandicarboxylic acid (FDCA) as a suitable alternative to the oxygen evolution reaction. Notably, HMF oxidation is thermodynamically more favorable than water oxidation and hence leads to an overall improved energy efficiency for H2 production. In addition, contrary to the “waste product O2”, FDCA can be further utilized, e.g., for production of polyethylene 2,5-furandicarboxylate (PEF), a sustainable polymer analog to polyethylene terephthalate (PET) and thus represents a valuable product for the chemical industry with potential large scale use. Various cobalt–metalloid alloys (CoX; X = B, Si, P, Te, As) were investigated as potential catalysts for HMF oxidation. In this series, CoB required 180 mV less overpotential to reach a current density of 55 mA cm−2 relative to OER with the same electrode. Electrolysis of HMF using a CoB modified nickel foam electrode at 1.45 V vs RHE achieved close to 100% selective conversion of HMF to FDCA at 100% faradaic efficiency.

    电化学水分解通常涉及阴极氢和阳极氧的演化反应(OER)。氧的演化反应在能量上更为苛刻且动力学上较为缓慢,是电化学水制氢商业竞争力的瓶颈。此外,氧本质上是一种低商业价值的废品,因为主要的兴趣是将电能转换为可储存的能源载体氢。我们报道了5-羟甲基糠醛(HMF)的阳极氧化,以获得更有价值的产物2,5-呋喃二甲酸(FDCA),作为氧的演化反应的合适替代品。值得注意的是,HMF氧化在热力学上比水氧化更有利,因此可以提高H2生产的总体能量效率。此外,与“废品O2”相反,FDCA可以进一步利用,例如用于制备聚乙烯2,5-呋喃二甲酸酯(PEF),这是一种可持续的聚合物类似于聚酯(PET),因此代表了化学工业的有价值产品,具有潜在的大规模应用。各种钴-金属硼化物合金(CoX; X = B、Si、P、Te、As)被研究作为HMF氧化的潜在催化剂。在这个系列中,CoB相对于具有相同电极的OER,需要少180mV的过电位才能达到55mA/cm2的电流密度。使用CoB改性的镍泡沫电极在1.45V vs RHE下电解HMF,实现了近100%选择性将HMF转化为FDCA,且具有100%法拉第效率。
  • Doping dependence of magnetic and transport properties in single crystalline Co-doped <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si14.gif" overflow="scroll"><mml:mrow><mml:msub><mml:mrow><mml:mtext>BaFe</mml:mtext></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mtext>As</mml:mtext></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>
    作者:Yasuyuki Nakajima、Toshihiro Taen、Tsuyoshi Tamegai
    DOI:10.1016/j.physc.2009.10.074
    日期:2010.12
    Abstract We report the doping dependence of transport and magnetic properties in Co-doped BaFe 2 As 2 . With increasing Co concentration x , structural and magnetic transitions are suppressed and superconductivity emerges in the range of 0.3 x 0.15 . T -linear resistivity is observed at the optimally doped composition x = 0.075 and the temperature exponent of the resistivity increases with x . Critical
    摘要 我们报告了Co-掺杂的BaFe 2 As 2 中传输和磁性的掺杂依赖性。随着 Co 浓度 x 的增加,结构和磁转变受到抑制,超导性出现在 0.3 x 0.15 范围内。在最佳掺杂成分 x = 0.075 处观察到 T 线性电阻率,并且电阻率的温度指数随 x 增加。从体磁化获得的低温和低场下的临界电流密度 J c 相当大,并且掺杂依赖性在 x ∼ 0.07 处显示出最大值,类似于 T c 。低温下的 J c 值在最佳掺杂区域附近达到约 1 × 10 6 A / cm 2 ,这对技术应用具有潜在吸引力。
  • Investigation of the oxidation of skutterudite by thermal analysis
    作者:L.J. Wilson、S.A. Mikhail
    DOI:10.1016/0040-6031(89)87176-x
    日期:1989.12
    Fe, Ni)As 3- x with oxygen was studied using differential thermal analysis. Thermogravimetry and X-ray diffraction were used as supplementary techniques. The oxidation was found to be a complex process which included the simultaneous dissociation of the mineral to lower arsenates and arsenic, and the oxidation of the products to arsenates and arsenic oxide vapour. The resulting mixture was composed of
    摘要 使用差热分析研究了矿物方钴矿(Co、Fe、Ni)As 3- x 与氧的相互作用。热重分析和 X 射线衍射被用作辅助技术。发现氧化是一个复杂的过程,包括矿物同时分解成低级砷酸盐和砷,以及产物氧化成砷酸盐和氧化砷蒸气。所得混合物由两种砷酸盐(2CoO·As 2 O 5 和3CoO·As 2 O 5 )组成。每种砷酸盐的相对量取决于氧分压。没有形成任何氧化钴物质的证据。方钴矿在惰性气氛中的热解离行为也通过热分析进行了检查。伴随着二砷化物和单砷化物的形成,砷蒸气分两步释放。还检查了合成 CoAs 3,并将结果与​​矿物的结果进行了比较。
查看更多