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ammine lithium borohydride | 93380-99-5

中文名称
——
中文别名
——
英文名称
ammine lithium borohydride
英文别名
monoammoniate of lithium borohydride;lithium borohydride mono-ammoniate;monoammine lithium borohydride;monoammoniate of lithium hydride
ammine lithium borohydride化学式
CAS
93380-99-5
化学式
BH4*H3N*Li
mdl
——
分子量
38.8143
InChiKey
GXFVCIFHIIZYHB-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):
    -4.29
  • 重原子数:
    3.0
  • 可旋转键数:
    0.0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.0
  • 拓扑面积:
    35.0
  • 氢给体数:
    1.0
  • 氢受体数:
    1.0

反应信息

  • 作为反应物:
    描述:
    参考文献:
    名称:
    单晶硼氢化镁二氨络合物和三氨络合物的合成、澄清性能和精制结构
    摘要:
    硼氢化镁与氨的络合物 Mg(BH 4 ) 2 ·2NH 3 (MA-2) 和 Mg(BH 4 ) 2 ·3NH 3 (MA-3) 以单晶形式获得,其结构通过下式确定: X射线衍射分析。根据粉末 X 射线衍射和红外光谱结果,一些已发表的作品中的数据(其中 MA-3 被定位为单独的化合物)显示出包含附加反射,这些反射与 Mg(BH 4 ) 2 ·6NH 3 (MA-6)。通过 DSC-TGA-MS 对单个 MA-3 热解过程的研究表明,将三胺加热至 600 °C 的温度会导致氨和氢的释放,摩尔比为 H 2 : NH 3 = 8:1,H 2总收率达到12wt.%。
    DOI:
    10.1007/s11172-024-4204-z
  • 作为产物:
    参考文献:
    名称:
    Hydrogen release from amminelithium borohydride, LiBH4·NH3
    摘要:
    氨锂硼氢化物 LiBH4-NH3 具有两个对温度敏感的化学键 N:→Li+ 和 N-H⋯H-B,通过稳定氨和促进 NH⋯HB 键的重组,可在低温下释放氢气。
    DOI:
    10.1039/b924057h
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文献信息

  • Mechanistic understanding of CoO-catalyzed hydrogen desorption from a LiBH<sub>4</sub>·NH<sub>3</sub>–3LiH system
    作者:Yi Zhang、Yongfeng Liu、Xin Zhang、You Li、Mingxia Gao、Hongge Pan
    DOI:10.1039/c5dt02148k
    日期:——

    Addition of CoO significantly reduces the dehydrogenation temperature and accelerates the dehydrogenation rate of the LiBH4·NH3–3LiH system.

    CoO的添加显著降低了LiBH4·NH3–3LiH系统的脱氢温度并加速了脱氢速率。
  • Converting H<sup>+</sup> from coordinated water into H<sup>−</sup> enables super facile synthesis of LiBH<sub>4</sub>
    作者:Kang Chen、Liuzhang Ouyang、Hao Zhong、Jiangwen Liu、Hui Wang、Huaiyu Shao、Yao Zhang、Min Zhu
    DOI:10.1039/c9gc01897b
    日期:——
    excellent application potential as an off- or on-board hydrogen carrier for its unparalleled hydrogen capacity (18.5 wt%). However, the difficulty in recycling “one-pass” LiBH4 and the resulting high cost hamper its large-scale applications. Here, we report a facile and low-cost method for LiBH4 regeneration by ball milling its hydrolysis by-product (LiBO2·2H2O) and Mg under ambient conditions, where expensive
    LiBH 4具有无与伦比的氢气容量(18.5 wt%),具有作为车外或车载氢气载体的出色应用潜力。然而,回收“单次通过”的LiBH 4的困难以及由此产生的高成本阻碍了其大规模应用。在这里,我们报告的LiBH一个浅显且低成本的方法4通过球再生副产物研磨其解(荔波2 ·2H 2 O)的环境条件,其中昂贵轰下和Mg -存储在的LiBH 4完全由廉价转换高+在协调的中。首次报道了这种情况,没有将氢化物用作还原过程的氢源。而且,通过该方法合成的LiBH 4的产率可以达到40%。LiBH 4再生的成本比以前的以NaBH 4为原料的研究降低了5倍。显着地,纯化后的产物显示出比市售LiBH 4更好的理化性质,例如,优异的解动力学。总的来说,在这项工作中提出了一种将氢气的生产和储存结合起来的一步法。此外,举例说明了LiBH 4的形成机理和中间产物LiBH 3(OH),是在再生过程中首次成功观察到的。
  • Ammonia-assisted fast Li-ion conductivity in a new hemiammine lithium borohydride, LiBH<sub>4</sub>·1/2NH<sub>3</sub>
    作者:Yigang Yan、Jakob B. Grinderslev、Young-Su Lee、Mathias Jørgensen、Young Whan Cho、Radovan Černý、Torben R. Jensen
    DOI:10.1039/c9cc09990e
    日期:——
    Hemiammine lithium borohydride, LiBH4·1/2NH3, is characterized and a new Li+ conductivity mechanism is identified. It exhibits a Li+ conductivity of 7 × 10−4 S cm−1 at 40 °C in the solid state and 3.0 × 10−2 S cm−1 at 55 °C after melting. The molten state of LiBH4·1/2NH3 has a high viscosity and can be mechanically stabilized in nano-composites with inert metal oxides and other hydrides making it a
    表征了溴化氢硼酸LiBH 4 ·1 / 2NH 3,并确定了新的Li +电导机理。熔融后,其在40℃下的Li +导电性为7×10 -4 S cm -1,在55℃下为3.0×10 -2 S cm -1。LiBH 4 ·1 / 2NH 3的熔融态具有很高的粘度,可以与惰性金属氧化物和其他氢化物在纳米复合材料中机械稳定,这使其成为很有前途的电池电解质。
  • Promoted dehydrogenation in ammine lithium borohydride supported by carbon nanotubes
    作者:Xinyi Chen、Shaofeng Li、Yanhui Guo、Xuebin Yu
    DOI:10.1039/c1dt10552c
    日期:——
    In this paper, ammine lithium borohydride (LiBH4·NH3) was successfully impregnated into multi-walled carbon nanotubes (CNTs) through a melting technique. X-ray diffraction, scanning electron microscopy, Brunauer–Emmett–Teller, and density measurements were employed to confirm the formation of the nanostructured LiBH4·NH3/CNTs composites. As a consequence, it was found that the dehydrogenation of the loaded LiBH4·NH3 was remarkably enhanced, showing an onset dehydrogenation at temperatures below 100 °C, together with a prominent desorption of pure hydrogen at around 280 °C, with a capacity as high as 6.7 wt.%, while only a trace of H2 liberation was present for the pristine LiBH4·NH3 in the same temperature range. Structural examination indicated that the significant modification of the thermal decomposition route of LiBH4·NH3 achieved in the present study is due to the CNT-assisted formation of B–N-based hydride composite, starting at a temperature below 100 °C. It is demonstrated that the formation of this B–N-based hydride covalently stabilized the [NH] groups that were weakly coordinated on Li cations in the pristine LiBH4·NH3via strong B–N bonds, and furthermore, accounted for the substantial hydrogen desorption at higher temperatures.
    本文通过熔融技术成功地将氢化(LiBH4·NH3)浸渍到多壁碳纳米管(CNT)中。采用 X 射线衍射、扫描电子显微镜、Brunauer-Emmett-Teller 和密度测量来确认纳米结构 LiBH4·NH3/CNT 复合材料的形成。结果发现,负载的LiBH4·NH3的脱氢作用显着增强,在低于100℃的温度下开始脱氢,并在280℃左右纯氢显着解吸,容量高达为 6.7 wt.%,而在相同温度范围内,原始 LiBH4·NH3 只释放出微量的 H2。结构检查表明,本研究中实现的 LiBH4·NH3 热分解路线的显着改变是由于 CNT 辅助形成 B-N 基氢化物复合材料,从低于 100 °C 的温度开始。结果表明,这种 B-N 基氢化物的形成共价稳定了原始 LiBH4·NH3 中通过强 B-N 键与 Li 阳离子弱配位的 [NH] 基团,此外,还导致了在更高的温度。
  • Ammine-Stabilized Transition-Metal Borohydrides of Iron, Cobalt, and Chromium: Synthesis and Characterization
    作者:Elsa Roedern、Torben R. Jensen
    DOI:10.1021/acs.inorgchem.5b01959
    日期:2015.11.2
    Iron and cobalt borohydrides stabilized by ammonia (NH3), [Fe(NH3)6](BH4)2 and [Co(NH3)6](BH4)2, were synthesized along with a solid solution, [Co(NH3)6](BH4)2–xClx (x ∼ 1), and a bimetallic compound, [Fe(NH3)6](Li2(BH4)4). The compounds were prepared by new low-temperature, solvent-based synthesis methods, using dimethyl sulfide or liquid NH3, which allow for the removal of inert metal halides. The
    合成了由(NH 3),[Fe(NH 3)6 ](BH 4)2和[Co(NH 3)6 ](BH 4)2稳定的氢化物,以及固溶体[Co (NH 3)6 ](BH 4)2 – x Cl x(x〜1)和双属化合物[Fe(NH 3)6 ](Li 2(BH 4)4)。这些化合物是通过新的基于溶剂的低温合成方法制备的,使用的是二甲基硫醚或液态NH 3,可以去除惰性属卤化物。从同步辐射粉末X射线衍射(SR-PXD)数据确定晶体结构。[M(NH 3)6 ](BH 4)2(M = Fe,Co)和[Co(NH 3)6 ](BH 4)2- x Cl x在立方晶体系统中结晶,其中过渡属为由NH 3八面体协调。的聚合物链由四个桥接BH协调4 -在[Fe(NH 3)6 ](Li 2(BH 4)4)中发现了阴离子。新化合物的氢密度较高,约为14 wt%H 2,约为140 g H 2 / L,并且在低温(T
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