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関連する概念動画

A Single-Component System01:24

A Single-Component System

In the field of chemistry, the terms "component" and "phase" hold significant importance. A component refers to a chemically distinct substance in a system that has specific properties. It is chemically homogeneous, meaning it has the same properties throughout. For example, in a mixture of salt and water, both salt and water are considered separate components because they have different chemical properties.On the other hand, a phase is a form of matter that has a consistent chemical...
Two Components: Liquid–Liquid Systems01:27

Two Components: Liquid–Liquid Systems

A pressure-composition phase diagram explicitly describes the behavior of an ideal solution of two volatile liquids under varying pressures and compositions. A pressure-composition diagram has two main curves. The bubble point curve represents the plot of pressure versus liquid mole fraction. It indicates the pressure at which the first bubble of vapor forms from the liquid phase as the system pressure decreases.The dew point curve is the pressure versus vapor mole fraction. It indicates the...
Hydrogen Bonds00:26

Hydrogen Bonds

Hydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge.
Hydrogen Bonds Control the World!
Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared.
Hydrogen Bonds01:04

Hydrogen Bonds

A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...
Reduction of Alkenes: Catalytic Hydrogenation02:13

Reduction of Alkenes: Catalytic Hydrogenation

Alkenes undergo reduction by the addition of molecular hydrogen to give alkanes. Because the process generally occurs in the presence of a transition-metal catalyst, the reaction is called catalytic hydrogenation.
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the surface of...
Radical Substitution: Hydrogenolysis of Alkyl Halides with Tributyltin Hydride01:26

Radical Substitution: Hydrogenolysis of Alkyl Halides with Tributyltin Hydride

Radical substitution reactions can be used to remove functional groups from molecules. The hydrogenolysis of alkyl halides is one such reaction, where the weak Sn–H bond in tributyltin hydride reacts with alkyl halides to form alkanes. Here, the reagent Bu3SnH yields tributyltin halide as a byproduct.
The bonds formed in this reaction are stronger than the bonds broken, making it energetically favorable. The reaction follows a radical chain mechanism similar to radical halogenation reactions,...

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関連する実験動画

Updated: May 27, 2026

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
06:32

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions

Published on: August 17, 2016

単一成分液相水素貯蔵材料である.

Wei Luo1, Patrick G Campbell, Lev N Zakharov

  • 1Department of Chemistry, University of Oregon, Eugene, Oregon 97403-1253, USA.

Journal of the American Chemical Society
|November 11, 2011
PubMed
まとめ
この要約は機械生成です。

研究者らは新しい液相水素貯蔵材料を開発した. このリサイクル可能な材料は,圧縮された水素ガスに対する安定した,効率的で費用対効果の高い代替品を提供します.

さらに関連する動画

In Situ High Pressure Hydrogen Tribological Testing of Common Polymer Materials Used in the Hydrogen Delivery Infrastructure
10:01

In Situ High Pressure Hydrogen Tribological Testing of Common Polymer Materials Used in the Hydrogen Delivery Infrastructure

Published on: March 31, 2018

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials
09:05

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials

Published on: May 15, 2015

関連する実験動画

Last Updated: May 27, 2026

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
06:32

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions

Published on: August 17, 2016

In Situ High Pressure Hydrogen Tribological Testing of Common Polymer Materials Used in the Hydrogen Delivery Infrastructure
10:01

In Situ High Pressure Hydrogen Tribological Testing of Common Polymer Materials Used in the Hydrogen Delivery Infrastructure

Published on: March 31, 2018

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials
09:05

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials

Published on: May 15, 2015

科学分野:

  • マテリアルサイエンス 材料科学
  • 化学工学は化学工学というものです.
  • エネルギー貯蔵 エネルギー貯蔵

背景:

  • 現在の水素貯蔵は圧縮ガス (700 bar) に依存しており,インフラ互換性を制限しています.
  • 液体ベースの水素貯蔵は,既存の配送ネットワークを活用することができます.
  • 安定した,リサイクル可能な液体水素キャリアの開発は,広範な採用のために不可欠です.

研究 の 目的:

  • 新しい液相水素貯蔵材料を導入する.
  • 水素エネルギーの実用的な応用のためにその性質を評価する.
  • 圧縮ガスの水素ガスの代替品としてその可能性を実証する.

主な方法:

  • 周りの環境条件 (20 °C,1 atm) で安定した液体物質の特性.
  • 空気と水分の安定性と再利用性の評価.
  • 80°C以下の豊富な触媒を用いた制御された水素放出の評価.

主要な成果:

  • 材料は環境条件下では液体であり,空気と水分に安定し,再利用可能である.
  • 制御された水素放出は,安価な触媒を用いて80°C以下で行われます.
  • この材料は,脱吸収中に相変化なしに,合理的な重力測定と体積測定の貯蔵容量を示しています.

結論:

  • この液相水素貯蔵材料は,圧縮水素に有効な代替品です.
  • その特性は,既存の液体ベースのインフラと燃料電池の要件に適合しています.
  • この材料は,効率的かつ費用対効果の高い水素エネルギー貯蔵と配送のための有望な経路を提供します.