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0°C以下での長期熱エネルギー貯蔵と光学的に誘発された熱放出のためのアリラゾピラゾール
Mihael A Gerkman1, Rosina S L Gibson2, Joaquín Calbo3
1Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02453, United States.
Journal of the American Chemical Society
|April 23, 2020
まとめ
新しいアリラゾピラゾール誘導体は,熱エネルギーをメタステーブルな液体相に貯蔵する. この蓄積された熱は,光学的に誘発された結晶化によって,−30°Cでも需要に応じて放出できます.
科学分野:
- 材料科学
- 有機化学
- エネルギー貯蔵
背景:
- アリラゾピラゾール系は,その光色特性で知られている.
- 熱エネルギーの効率的な貯蔵のための材料の開発は,様々な用途に不可欠です.
研究 の 目的:
- 新しいアリラゾピラゾール誘導体の熱エネルギー貯蔵能力を調査する.
- これらの化合物の熱貯蔵と放出のメカニズムを探求する.
- 制御されたエネルギー放出のための 光学的に誘発された結晶化を実証する.
主な方法:
- 4つのコア構造とドデカノアート機能化のアリラゾピラゾール誘導体の合成.
- メタステーブルZ同位体液相における熱エネルギー貯蔵の調査.
- 可視光照射と熱方法による熱放出の分析
- 異なる温度と持続時間におけるZ同位体安定性の評価
主要な成果:
- アリラゾピラゾール誘導体は,そのメタステーブルなZ同位体液相で熱エネルギーを貯蔵することに成功した.
- 3つの異なる熱貯蔵放出システム (光学,熱,組合せ) が特定されました.
- 可視光によるZ-Eイソメリゼーションによる選択的結晶化により,蓄積されたエネルギーが放出されます.
- 潜伏熱は2週間以上も 光学的に触発されずに保存された.
- 熱エネルギーの最大92kJ/molが貯蔵され,熱と液相の安定性は0°C以下であった.
結論:
- アリラゾピラゾール系は,熱エネルギー貯蔵のための新しい材料のクラスを表します.
- 光学的に誘発された結晶化は,制御された熱放出のための正確な方法を提供します.
- これらの化合物は,優れた安定性を示すので,実用的な用途に有望です.
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