雪櫃、冷氣機、水煲等等各電器不時都會散發出熱力。716Please respect copyright.ＰＥＮＡＮＡNa2kmzyOxy
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。716Please respect copyright.ＰＥＮＡＮＡ8klxlDFtGQ
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（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。716Please respect copyright.ＰＥＮＡＮＡVkTGW5Xamy
716Please respect copyright.ＰＥＮＡＮＡxnFUc2lHUC
716Please respect copyright.ＰＥＮＡＮＡ72w3R5J5d5
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。716Please respect copyright.ＰＥＮＡＮＡdCpwFB2dv6
716Please respect copyright.ＰＥＮＡＮＡCf8DVbBot0
（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。716Please respect copyright.ＰＥＮＡＮＡ9t6Vsw0KBF
716Please respect copyright.ＰＥＮＡＮＡltbgFCuzer
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。716Please respect copyright.ＰＥＮＡＮＡIfS8nmOSKs
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選用Fe(CN)6 –4的原因基於其兩種特質。716Please respect copyright.ＰＥＮＡＮＡGaBRPyFAch
716Please respect copyright.ＰＥＮＡＮＡs0CLK1cHH3
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。716Please respect copyright.ＰＥＮＡＮＡUonZRkZ6Vc
716Please respect copyright.ＰＥＮＡＮＡepbOjlKF7F
2.它遇熱的時候會放出電子並成為Fe(CN)6 –3。716Please respect copyright.ＰＥＮＡＮＡbOJYHAm5un
716Please respect copyright.ＰＥＮＡＮＡFYtxKOzoYC
（圖4）以下就是利用熱力發電的精髓要點。716Please respect copyright.ＰＥＮＡＮＡueDr07iPIM
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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。716Please respect copyright.ＰＥＮＡＮＡqONkO6s4RN
716Please respect copyright.ＰＥＮＡＮＡnB3WxHErpg
2.電子在閉合電路走動，產生電流，讓燈泡發亮。716Please respect copyright.ＰＥＮＡＮＡcjjMrP5r47
716Please respect copyright.ＰＥＮＡＮＡLxtT4gZz2f
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。716Please respect copyright.ＰＥＮＡＮＡUeUMv4YzqU
716Please respect copyright.ＰＥＮＡＮＡDNFqGt0nYk
4.Fe(CN)6 –4在Guanidinium ion的輔助下變成固體結晶。716Please respect copyright.ＰＥＮＡＮＡ8pd0Ozaj2Q
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。716Please respect copyright.ＰＥＮＡＮＡcTEdPHoiCV
716Please respect copyright.ＰＥＮＡＮＡIj2kRZHg6X
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。716Please respect copyright.ＰＥＮＡＮＡM64cFmhzCP
716Please respect copyright.ＰＥＮＡＮＡZxeWy3dRE6
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。716Please respect copyright.ＰＥＮＡＮＡKs51A0yYP4
716Please respect copyright.ＰＥＮＡＮＡqktHje915G
（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。716Please respect copyright.ＰＥＮＡＮＡwzrcTE2dvD
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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。716Please respect copyright.ＰＥＮＡＮＡfApZ10Kf2d
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。716Please respect copyright.ＰＥＮＡＮＡNnVOQgVppp
716Please respect copyright.ＰＥＮＡＮＡNNORL1Xram
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。716Please respect copyright.ＰＥＮＡＮＡnfAXB1VWst
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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/toc716Please respect copyright.ＰＥＮＡＮＡr5ejx6yn6b
716Please respect copyright.ＰＥＮＡＮＡcOMamt7NYf
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。716Please respect copyright.ＰＥＮＡＮＡrY1bEu5ICu
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Link:716Please respect copyright.ＰＥＮＡＮＡg097wE9mkX
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio716Please respect copyright.ＰＥＮＡＮＡv3ViYH24hM
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716Please respect copyright.ＰＥＮＡＮＡH047RR28k7
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。716Please respect copyright.ＰＥＮＡＮＡl7zKGmZWPl
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Ref1:https://science.sciencemag.org/content/early/2020/09/09/science.abd6749716Please respect copyright.ＰＥＮＡＮＡRXbjkPQpcU
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