水素ゲルナノ粒子の相変化によって駆動される熱電池
Benshuai Guo1, Yu Hoshino1, Fan Gao2
1Department of Chemical Engineering, Graduate School of Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
Journal of the American Chemical Society
|September 28, 2020
まとめ
水素ゲルナノ粒子を用いた熱電変換は クリーンなエネルギーを生み出す新しい方法を提供します これらの新型熱電池は低品質の熱を効率的に電気に変換し,持続可能な電力ソリューションの道を開きます.
科学分野:
- 材料科学
- 電気化学
- エネルギー変換
背景:
- 熱電変換はモノのインターネット (IoT) と炭素のない社会にとって不可欠です.
- 低温の熱源は豊富ですが,効率的に利用することは困難です.
- 熱電池は低コストで柔軟な熱電変換方法ですが,効率の向上が必要です.
研究 の 目的:
- ハイドロゲルナノ粒子を用いた高効率の熱電変換を開発する.
- エネルギー収集のためのヒドロゲル体積相移行の可能性を調査する.
- 持続可能で無毒で安価なエネルギー源を作り出すこと
主な方法:
- ポリ (N-イソプロピラクリラミド) ナノ粒子のエントロピー駆動的体積相移行 (VPT) を利用する.
- 生理学的気温の周りに VPT を介して pH グラデーションを生成します.
- 電子でクインヒドロンのプロトン結合電子移転 (PCET) 反応を用いる.
主要な成果:
- pHのグラディエントは0.049と-0.053 pH K−1まで達する.
- -6.7 と +6.1 mV K-1 の高いシーベック係数 (S) を得られた.
- ハイドロゲルフェーズトランジションによって効率的な熱電変換が実証されている.
結論:
- 水素ナノ粒子のVPTは 効率的な熱電変換を誘導します
- これらの熱電池は 柔軟で無毒で安価な方法で 炭素のないエネルギーを採取します
- 潜在的用途には,太陽光,体,または廃棄熱を使用した充電装置が含まれます.
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