雪櫃、冷氣機、水煲等等各電器不時都會散發出熱力。712Please respect copyright.ＰＥＮＡＮＡ6gTnzf8PMc
如果將這些多餘的熱力轉化成為電力，便能夠更有效運用資源，不作浪費。712Please respect copyright.ＰＥＮＡＮＡ3hS8T89HGz
712Please respect copyright.ＰＥＮＡＮＡszDSbdK9aC
712Please respect copyright.ＰＥＮＡＮＡfKc5MInVPQ
（圖2）繼續深入講解之前，我們先以非常簡單的方法概括一下發電的原理。712Please respect copyright.ＰＥＮＡＮＡhGmK2h6mi5
712Please respect copyright.ＰＥＮＡＮＡMAZLHgS8jv
712Please respect copyright.ＰＥＮＡＮＡtA97thrBmO
只要電子在閉合電路單方向流動，就能促成電流，提供電力讓燈泡發光。712Please respect copyright.ＰＥＮＡＮＡDID0nytw15
712Please respect copyright.ＰＥＮＡＮＡYTlZIe51Pi
（圖3）要把熱力有效轉化為電力，我們需要一樣能夠有效傳遞電子而同時又不會傳遞熱力的物料。712Please respect copyright.ＰＥＮＡＮＡinUY0jNq02
712Please respect copyright.ＰＥＮＡＮＡuvxBFVPVUY
有科學家最近發表文章（Ref1)，利用化學物ferricyanide ion Fe(CN)6 –4作為媒體把熱力轉化為電力。712Please respect copyright.ＰＥＮＡＮＡH4WDRFNZZe
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712Please respect copyright.ＰＥＮＡＮＡhH7DiKjYxn
選用Fe(CN)6 –4的原因基於其兩種特質。712Please respect copyright.ＰＥＮＡＮＡY8lJZPk0ZC
712Please respect copyright.ＰＥＮＡＮＡ7sO87HyRYD
1.它遇冷（約攝氏20度左右）的時候，再加上Guanidinium ion的輔助下便會變成固體結晶。712Please respect copyright.ＰＥＮＡＮＡtMdXMGwzVG
712Please respect copyright.ＰＥＮＡＮＡRQSez00vsL
2.它遇熱的時候會放出電子並成為Fe(CN)6 –3。712Please respect copyright.ＰＥＮＡＮＡwSsNQEo0Zg
712Please respect copyright.ＰＥＮＡＮＡ3xZqyclw64
（圖4）以下就是利用熱力發電的精髓要點。712Please respect copyright.ＰＥＮＡＮＡN9dRlBxb2u
712Please respect copyright.ＰＥＮＡＮＡp4YFCWuvVu
712Please respect copyright.ＰＥＮＡＮＡhA5b5qknEp
1.Fe(CN)6 –4遇上外間熱力（例如電器所散發出的熱力），因而會釋發電子並成為Fe(CN)6 –3。712Please respect copyright.ＰＥＮＡＮＡtKyxLuywUI
712Please respect copyright.ＰＥＮＡＮＡLea6EYQ5Vp
2.電子在閉合電路走動，產生電流，讓燈泡發亮。712Please respect copyright.ＰＥＮＡＮＡvm9fH3jlsR
712Please respect copyright.ＰＥＮＡＮＡIoUtwLf1p1
3.電子到達另一端的凍金屬棒（約攝氏20度）後，從第1點所得來的Fe(CN)6 –3便會接收電子，變回Fe(CN)6 –4。712Please respect copyright.ＰＥＮＡＮＡbFbluY815D
712Please respect copyright.ＰＥＮＡＮＡRYNlPUY08P
4.Fe(CN)6 –4在Guanidinium ion的輔助下變成固體結晶。712Please respect copyright.ＰＥＮＡＮＡ9f94i2ZbSi
固體相對上傳熱的能力比液體較弱，因而減低了熱金屬棒把熱力傳到凍金屬棒的效率，促使凍金屬棒及熱金屬棒維持著溫差。712Please respect copyright.ＰＥＮＡＮＡAG1BAmjgYD
712Please respect copyright.ＰＥＮＡＮＡimfBhPRBmC
5.在地心吸力的影響下，固體結晶會趨往金屬棒那方。而在熱力的影響下，固體結晶變回液態Fe(CN)6 –4，重回第1點不斷循環。712Please respect copyright.ＰＥＮＡＮＡC5AGqbFDbV
712Please respect copyright.ＰＥＮＡＮＡBf2tbpbyKK
綜合來說，科學家巧妙利用了Fe(CN)6 –4遇熱釋出電子的特點，以及遇冷配合Guanidinium結成固體、固體不易傳熱的特質，建造了有效傳遞電子而同時又不會有效傳遞熱力的物料。712Please respect copyright.ＰＥＮＡＮＡajjYvjMU9N
712Please respect copyright.ＰＥＮＡＮＡSCXpo8Kd3X
（圖5）科學家在文中亦嘗試利用20個圖4的模組，在兩極維持50度的溫差下，提供電力予各用途之上。712Please respect copyright.ＰＥＮＡＮＡeRehDAdSjK
712Please respect copyright.ＰＥＮＡＮＡd8m4hqiY0n
712Please respect copyright.ＰＥＮＡＮＡKibN9ai7Jz
現在需要解決的問題，就是找出收集多餘熱力的有效方法及物料，引導熱力到模組裡頭。712Please respect copyright.ＰＥＮＡＮＡG0se0BGK22
文章作者表示現時已積極尋找物料，相信假以時日絕有可能會在市面見到收集電器熱力發電的設備。712Please respect copyright.ＰＥＮＡＮＡ3r9w4uzMOl
712Please respect copyright.ＰＥＮＡＮＡiJ9zdMy98Z
如果想我快啲出文的話，請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark，這對我非常之重要。712Please respect copyright.ＰＥＮＡＮＡSNP1xinJEA
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Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc712Please respect copyright.ＰＥＮＡＮＡkrK7aEeq1v
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同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」，以課金的方式推動我繼續搜羅資料寫文，多謝。712Please respect copyright.ＰＥＮＡＮＡrQdq95zCyq
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Link:712Please respect copyright.ＰＥＮＡＮＡHFza92Nbx8
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio712Please respect copyright.ＰＥＮＡＮＡoUe7pzRhQC
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有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。712Please respect copyright.ＰＥＮＡＮＡkMU556Hfzc
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Ref1:https://science.sciencemag.org/content/early/2020/09/09/science.abd6749712Please respect copyright.ＰＥＮＡＮＡDheT5QG6qi
8964 copyright protection708ＰＥＮＡＮＡsqQR5Y0u5T 維尼

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