cobalt telluride

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 各种混合金属/非金属
• 英文名称: cobalt telluride
• 英文别名: (cobalt)Te
• 化学式: CoTe
• 分子量: 186.593
• InChiKey: GLADTWKVCFPLFD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.92
• 重原子数：
  2.0
• 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：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  cobalt telluride 在 溴 作用下， 生成 亚碲酸 、 cobalt(II) bromide
  参考文献：
  名称：

  Fabre, G., Annales de Chimie et de Physique, 1888, vol. 14, p. 110 - 110

  摘要：

  DOI：
• 作为产物：
  描述：

  Co3(CO)3(μ-CO)(μ-TePh)5 以 neat (no solvent) 为溶剂， 生成 cobalt telluride
  参考文献：
  名称：

  摘要：

  The thermal decay of 19 individual carbonyl homo- and heterochalcogenide clusters with different M/X ratios (M = Fe, Mn, Pt, Cr, W, Mo, Re, Ru; X = S, Se, Te) was studied by differential scanning calorimetry and thermogravimetry. The process is stepwise and occurs at relatively low temperatures (100-350 degreesC). The general fact of incomplete removal of carbon monoxide (due to the formation of carbide and oxide impurities) during thermolysis of carbonyl chalcogenide clusters with the M : X ratio greater than I was elucidated. Conversely, when M : X less than or equal to I (or at any M/X ratio for clusters containing methylcyclopentadienyl groups), pure metal chalcogenides are formed.

  DOI：

  10.1023/a:1022444231122

文献信息

• High-pressure Synthesis of Ba₂CoO₂Ag₂Te₂ with Extended CoO₂ Planes
  作者：Yuki Matsumoto、Yusuke Nambu、Takashi Honda、Kazutaka Ikeda、Toshiya Otomo、Hiroshi Kageyama

  DOI：10.1021/acs.inorgchem.0c00429

  日期：2020.6.15

  Using a high-pressure synthesis method, we prepared the layered oxychalcogenide Ba2CoO2Ag2Te2 (space group: I4/mmm) with alternating stacks of CoO2 and Ag2Te2 layers, separated by Ba atoms. The CoO2 plane is greatly extended (Co–O = 2.19 Å on average) due to tensile strain from adjacent Ag2Te2 layers, causing displacement of oxide anions. Layered cobaltates with trans-CoO4X2 (X = chalcogen, halogen)

  使用高压合成方法，我们制备了层状氧化硫属元素化物Ba 2 CoO 2 Ag 2 Te 2（空间群：I 4 / mmm），其中CoO 2和Ag 2 Te 2层交替堆叠，由Ba原子隔开。由于来自相邻Ag 2 Te 2层的拉伸应变，CoO 2平面大大扩展（平均Co-O = 2.19Å），从而导致氧化物阴离子的置换。具有反式-CoO 4 X 2的层状钴酸盐（X =硫族元素，卤素）配位具有较大的自旋-轨道耦合，由d Co–X / d Co–O的四面体因子线性缩放。然而，应用这种关系对于Ba 2的CoO 2的Ag 2碲2倍的产率约为4μ的磁矩乙，这是近两倍1.87（17）μ的实验观测值乙。此结果与降低的Néel温度（T N = 60 K）一起源自其他键合不足的氧化物阴离子的偏心位置，这改变了Co d轨道的晶体场分裂。
• 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。
• Phase-Selective Syntheses of Cobalt Telluride Nanofleeces for Efficient Oxygen Evolution Catalysts
  作者：Qiang Gao、Chuan-Qi Huang、Yi-Ming Ju、Min-Rui Gao、Jian-Wei Liu、Duo An、Chun-Hua Cui、Ya-Rong Zheng、Wei-Xue Li、Shu-Hong Yu

  DOI：10.1002/anie.201701998

  日期：2017.6.26

  Cobalt‐based nanomaterials have been intensively explored as promising noble‐metal‐free oxygen evolution reaction (OER) electrocatalysts. Herein, we report phase‐selective syntheses of novel hierarchical CoTe2 and CoTe nanofleeces for efficient OER catalysts. The CoTe2 nanofleeces exhibited excellent electrocatalytic activity and stablity for OER in alkaline media. The CoTe2 catalyst exhibited superior

  钴基纳米材料已被广泛研究为有前途的无贵金属无氧放出反应（OER）电催化剂。在这里，我们报告了新型分层CoTe 2和CoTe纳米绒的相选择合成方法，以用于高效的OER催化剂。CoTe 2纳米绒在碱性介质中对OER表现出优异的电催化活性和稳定性。与CoTe催化剂相比，CoTe 2催化剂具有优异的OER活性，后者可与最新的RuO 2催化剂相媲美。密度泛函理论计算表明，反应中间体在CoTe 2上的结合强度和横向相互作用COTE和CoTe对于确定不同条件下所需的过电势至关重要。这项研究为通过使用钴基硫属元素化物合理设计高性能，低成本的无贵金属OER催化剂提供了宝贵的见识。
• A General Solvothermal Route to the Synthesis of CoTe, Ag ₂ Te/Ag, and CdTe Nanostructures with Varied Morphologies
  作者：Ling Jiang、Ying‐Jie Zhu

  DOI：10.1002/ejic.200900960

  日期：2010.3

  A general and facile surfactant-assisted solvothermal route was developed for the synthesis of CoTe, Ag 2 Te/Ag, and CdTe nanostructures using the corresponding metal salt, Na 2 TeO 3 , ascorbic acid, and polyvinyl pyrrolidone (PVP) or cetyltrimethylammonium bromide (CTAB) in mixed solvents of ethanolamine and water. It was also found that the morphology of the product varied dramatically when using

  使用相应的金属盐、Na 2 TeO 3 、抗坏血酸和聚乙烯吡咯烷酮 (PVP) 或十六烷基三甲基溴化铵，开发了一种通用且简便的表面活性剂辅助溶剂热途径，用于合成 CoTe、Ag 2 Te/Ag 和 CdTe 纳米结构。 CTAB) 在乙醇胺和水的混合溶剂中。还发现当使用不同的表面活性剂如 PVP 和 CTAB 时，产品的形态变化很大。提出了碲化物纳米结构的形成机制。通过X射线粉末衍射（XRD）、透射电子显微镜（TEM）、热重（TG）和差示扫描量热（DSC）分析对产物进行表征。
• Hydrothermal synthesis of cobalt telluride nanorods for a high performance hybrid asymmetric supercapacitor
  作者：M. Manikandan、K. Subramani、M. Sathish、S. Dhanuskodi

  DOI：10.1039/c9ra08692g

  日期：——

  A one-step hydrothermal derived cobalt telluride nanorods and activated carbon-based hybrid asymmetric supercapacitor delivered a high energy (40.7 W h kg⁻¹) and power density (22.5 kW kg⁻¹) with an electrochemical stability of 85% for 10000 cycles.

  一步水热法制备的钴碲纳米棒和活性炭基混合不对称超级电容器提供了高能量（40.7 W h kg⁻¹）和高功率密度（22.5 kW kg⁻¹），电化学稳定性在10000个循环中达到了85%。