雪櫃、冷氣機、水煲等等各電器不時都會散發出熱力。707Please respect copyright.ＰＥＮＡＮＡcJZABXLYnX
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。707Please respect copyright.ＰＥＮＡＮＡu4wGpIRTgq
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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。707Please respect copyright.ＰＥＮＡＮＡaxJzBy3IvK
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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。707Please respect copyright.ＰＥＮＡＮＡbTuM3v6E2m
707Please respect copyright.ＰＥＮＡＮＡ9fQ27h9vee
（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。707Please respect copyright.ＰＥＮＡＮＡn1fQdSUyKq
707Please respect copyright.ＰＥＮＡＮＡ1HGSGEYftr
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。707Please respect copyright.ＰＥＮＡＮＡCPmithWizZ
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選用Fe(CN)6 –4的原因基於其兩種特質。707Please respect copyright.ＰＥＮＡＮＡSreDoWi7D9
707Please respect copyright.ＰＥＮＡＮＡPuRz8Cnb4q
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。707Please respect copyright.ＰＥＮＡＮＡu16RNdbORu
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2.它遇熱的時候會放出電子並成為Fe(CN)6 –3。707Please respect copyright.ＰＥＮＡＮＡJk9GlXPhD9
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（圖4）以下就是利用熱力發電的精髓要點。707Please respect copyright.ＰＥＮＡＮＡwOZPCiJsIY
707Please respect copyright.ＰＥＮＡＮＡCAOa51rYSb
707Please respect copyright.ＰＥＮＡＮＡGtYseQBfcx
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。707Please respect copyright.ＰＥＮＡＮＡWiIkjXsu2u
707Please respect copyright.ＰＥＮＡＮＡ46lxIeizK0
2.電子在閉合電路走動，產生電流，讓燈泡發亮。707Please respect copyright.ＰＥＮＡＮＡP0pBh3xgTB
707Please respect copyright.ＰＥＮＡＮＡectBb9eBUD
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。707Please respect copyright.ＰＥＮＡＮＡ0JGELwU5B8
707Please respect copyright.ＰＥＮＡＮＡezGPMlLQbF
4.Fe(CN)6 –4在Guanidinium ion的輔助下變成固體結晶。707Please respect copyright.ＰＥＮＡＮＡrvLCpKhsxE
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。707Please respect copyright.ＰＥＮＡＮＡWwbJhIPS3T
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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。707Please respect copyright.ＰＥＮＡＮＡaW0LaQO7Hn
707Please respect copyright.ＰＥＮＡＮＡ03clgpdhjM
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。707Please respect copyright.ＰＥＮＡＮＡu2yHBx9YGS
707Please respect copyright.ＰＥＮＡＮＡw42GYjwuHd
（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。707Please respect copyright.ＰＥＮＡＮＡMeqYAdeNJ2
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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。707Please respect copyright.ＰＥＮＡＮＡBrCGiszDrm
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。707Please respect copyright.ＰＥＮＡＮＡFxk28PTTX4
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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。707Please respect copyright.ＰＥＮＡＮＡt03wAMM0mk
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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/toc707Please respect copyright.ＰＥＮＡＮＡCc7O6QWAbf
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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。707Please respect copyright.ＰＥＮＡＮＡrcfId3fzgS
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Link:707Please respect copyright.ＰＥＮＡＮＡR4X8WQmrzK
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio707Please respect copyright.ＰＥＮＡＮＡ3y452LfJEP
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有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。707Please respect copyright.ＰＥＮＡＮＡKLXGjISEaV
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Ref1:https://science.sciencemag.org/content/early/2020/09/09/science.abd6749707Please respect copyright.ＰＥＮＡＮＡMknumJtHPF
8964 copyright protection703ＰＥＮＡＮＡLEoIpyDnTv 維尼

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