雪櫃、冷氣機、水煲等等各電器不時都會散發出熱力。629Please respect copyright.ＰＥＮＡＮＡalmmirVM9F
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。629Please respect copyright.ＰＥＮＡＮＡYUBBMZHNLC
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629Please respect copyright.ＰＥＮＡＮＡvuGqBM6C2k
（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。629Please respect copyright.ＰＥＮＡＮＡfdD54dkhLT
629Please respect copyright.ＰＥＮＡＮＡOVVeP6wunz
629Please respect copyright.ＰＥＮＡＮＡ38Pv4Efu9e
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。629Please respect copyright.ＰＥＮＡＮＡwnpLBYvVGZ
629Please respect copyright.ＰＥＮＡＮＡ6p6iFSNBij
（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。629Please respect copyright.ＰＥＮＡＮＡ6IgNd6pTw6
629Please respect copyright.ＰＥＮＡＮＡumEhJ9gUyd
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。629Please respect copyright.ＰＥＮＡＮＡWd5CFoJpaZ
629Please respect copyright.ＰＥＮＡＮＡP6ANGcA9Eo
629Please respect copyright.ＰＥＮＡＮＡ3qDH3cOjwV
選用Fe(CN)6 –4的原因基於其兩種特質。629Please respect copyright.ＰＥＮＡＮＡqKxVLrvhYh
629Please respect copyright.ＰＥＮＡＮＡf7jTE1P365
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。629Please respect copyright.ＰＥＮＡＮＡ0fgRNtYSsp
629Please respect copyright.ＰＥＮＡＮＡ9m0CRGF5jb
2.它遇熱的時候會放出電子並成為Fe(CN)6 –3。629Please respect copyright.ＰＥＮＡＮＡOAFgvDboiK
629Please respect copyright.ＰＥＮＡＮＡU6nyog58Z5
（圖4）以下就是利用熱力發電的精髓要點。629Please respect copyright.ＰＥＮＡＮＡgdnJEWOi46
629Please respect copyright.ＰＥＮＡＮＡ4AhK64KNw0
629Please respect copyright.ＰＥＮＡＮＡXtpQC0sXO5
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。629Please respect copyright.ＰＥＮＡＮＡ2bzJabaxZP
629Please respect copyright.ＰＥＮＡＮＡBFdU6LTlIi
2.電子在閉合電路走動，產生電流，讓燈泡發亮。629Please respect copyright.ＰＥＮＡＮＡE1aWFhwQfa
629Please respect copyright.ＰＥＮＡＮＡXawiQTh40E
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。629Please respect copyright.ＰＥＮＡＮＡ2sYxD2pgdN
629Please respect copyright.ＰＥＮＡＮＡEJoXrthMI7
4.Fe(CN)6 –4在Guanidinium ion的輔助下變成固體結晶。629Please respect copyright.ＰＥＮＡＮＡkVumX4OhcZ
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。629Please respect copyright.ＰＥＮＡＮＡLAJxnN4EJl
629Please respect copyright.ＰＥＮＡＮＡfWaxb0Sfro
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。629Please respect copyright.ＰＥＮＡＮＡ0zhbh5SLQk
629Please respect copyright.ＰＥＮＡＮＡPmjeU3jSnN
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。629Please respect copyright.ＰＥＮＡＮＡaBb1NX30dg
629Please respect copyright.ＰＥＮＡＮＡqgCgD7fTG8
（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。629Please respect copyright.ＰＥＮＡＮＡuKWaHflCkT
629Please respect copyright.ＰＥＮＡＮＡWSAWzujr4T
629Please respect copyright.ＰＥＮＡＮＡrROZq1gZGT
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。629Please respect copyright.ＰＥＮＡＮＡ3Qn2eqZOPG
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。629Please respect copyright.ＰＥＮＡＮＡ5DuvwC3z7m
629Please respect copyright.ＰＥＮＡＮＡhAJJfAQOTC
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。629Please respect copyright.ＰＥＮＡＮＡjC9S8g0XZj
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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/toc629Please respect copyright.ＰＥＮＡＮＡj9sY5paDat
629Please respect copyright.ＰＥＮＡＮＡQ3IagDEgK2
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。629Please respect copyright.ＰＥＮＡＮＡc2lBdunH52
629Please respect copyright.ＰＥＮＡＮＡYIhCP7kbD3
Link:629Please respect copyright.ＰＥＮＡＮＡWmJ6N2EXjV
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio629Please respect copyright.ＰＥＮＡＮＡWgpVqlviHk
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629Please respect copyright.ＰＥＮＡＮＡSUMjoSfjPZ
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。629Please respect copyright.ＰＥＮＡＮＡ7FhYUQsBXJ
629Please respect copyright.ＰＥＮＡＮＡ7mbzxAgnt9
Ref1:https://science.sciencemag.org/content/early/2020/09/09/science.abd6749629Please respect copyright.ＰＥＮＡＮＡPT2SEt4JWF
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