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相关概念视频

Experimental Determination of Chemical Formula02:37

Experimental Determination of Chemical Formula

37.7K
The elemental makeup of a compound defines its chemical identity, and chemical formulas are the most concise way of representing this elemental makeup. When a compound’s formula is unknown, measuring the mass of its constituent elements is often the first step in determining the formula experimentally.
37.7K
Lewis Structures of Molecular Compounds and Polyatomic Ions02:54

Lewis Structures of Molecular Compounds and Polyatomic Ions

34.6K
To draw Lewis structures for complicated molecules and molecular ions, it is helpful to follow a step-by-step procedure as outlined:
34.6K
Calculating the Equilibrium Constant02:46

Calculating the Equilibrium Constant

31.2K
The equilibrium constant for a reaction is calculated from the equilibrium concentrations (or pressures) of its reactants and products. If these concentrations are known, the calculation simply involves their substitution into the Kc expression.
For example, gaseous nitrogen dioxide forms dinitrogen tetroxide according to this equation:
31.2K

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相关实验视频

Updated: Jun 11, 2025

Niobium Oxide Films Deposited by Reactive Sputtering: Effect of Oxygen Flow Rate
08:23

Niobium Oxide Films Deposited by Reactive Sputtering: Effect of Oxygen Flow Rate

Published on: September 28, 2019

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Ti4Fe2C0.82O0.18的数量是如何计算的

Huizi Liu1, Changzeng Fan1,2, Bin Wen1

  • 1State Key Laboratory of Metastable Materials Science and Technology Yanshan University,Qinhuangdao 066004 People's Republic of China.

IUCrData
|October 7, 2024
PubMed
概括
此摘要是机器生成的。

研究人员意外地通过高压烧结合成了一种新的四二氧化铁二氧化碳 (Ti4Fe2C0.82O0.18) 阶段. 这种新材料在其独特的晶体结构中具有共占碳和氧原子的特点.

关键词:
共同职业的共同职业是什么晶体结构 晶体结构高压烧结的高压烧结方法它们是金属间化合物.

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Last Updated: Jun 11, 2025

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科学领域:

  • 材料科学 材料科学 材料科学
  • 固态化学 固态化学
  • 晶体学 晶体学是指结晶学.

背景情况:

  • 已知Ti2Fe结构可以容纳间歇性原子.
  • 之前的研究已经合成了类似的化合物,如Ti4Ni2C和Ti4Fe2O0.407.7.

研究的目的:

  • 报道了一种新的铁碳化物氧化物相的意想不到的合成.
  • 描述新合成阶段的晶体结构和原子排列.

主要方法:

  • 高压烧结 (HPS) 的一个固态测量Ti2Fe混合物.
  • 进行X射线衍射分析以确定晶体结构和空间组.
  • 在间隙空隙中对原子占用率的分析.

主要成果:

  • 成功合成了Ti4Fe2C0.82O0.18阶段的合成.
  • 阶段结晶在Fd-3m空间组中.
  • 发现碳和氧原子共同占据相同的八面体空白,占用率为0.82:0.18.

结论:

  • 合成的Ti4Fe2C0.82O0.18代表了一个新填充的Ti2Fe类型结构.
  • 这是第一次报告碳和氧在这些结构中的同一地点共同占用的案例.
  • 这些发现扩大了对 - 铁金属间的间位原子行为的理解.