組み合わせた水素の生産と貯蔵と,その後の炭素結晶化
Angela D Lueking1, Humberto R Gutierrez, Dania A Fonseca
1The Pennsylvania State University, 120 Hosler, University Park, Pennsylvania 16802-5000, USA. adl11@psu.edu
Journal of the American Chemical Society
|June 15, 2006
まとめ
この研究は,低温の水素の放出と,改変されたアントラサイト炭に閉じ込められることを明らかにしています. 加熱は,この水素の進化を加速し,新しい結晶炭素構造の形成を促すことを示唆しています.
科学分野:
- マテリアルサイエンス 材料科学
- 化学 化学は化学です.
- 地質化学 地質化学
背景:
- アントラサイト石炭の誘導体は,反応性球磨きを使用して合成することができます.
- 高エネルギー加工プロセスは,メタステーブルな炭素構造を作り出すことができます.
研究 の 目的:
- 低温水素の進化と,炭酸炭鉱の炭酸炭酸炭酸炭酸炭酸炭酸炭酸炭酸炭酸炭酸炭酸炭酸炭酸.
- 水素の放出と炭素構造の変化の関係を探求する.
主な方法:
- サイクロヘクセンによるアントラサイト石炭の反応性ボール磨き.
- 分子水素の振動を検出するラーマン光譜法.
- 水素進化の運動学を研究するための熱分析.
- 炭素構造を特徴付けるための顕微鏡とスペクトル鏡.
主要な成果:
- 低温水素進化の証拠と,炭酸炭鉱の誘導体に閉じ込められた証拠.
- 室温で観察された水素の放出は,60°C以上の加熱によって加速されます.
- 結晶性炭素の形成,ナノ結晶性ダイヤモンドおよびグラフィティック領域を含む.
- アモルフな炭素に囲まれた新しい結晶性炭素の形態の識別.
結論:
- 水素の閉じ込めと緩やかな放出は,粉砕された炭酸炭鉱の誘導体で起こります.
- 水素の進化は,無形な炭素材料の結晶化を誘導するように見えます.
- メタステーブルな水素化された炭素は,より安定した形に再配置され,分子水素を放出します.
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