雪櫃、冷氣機、水煲等等各電器不時都會散發出熱力。647Please respect copyright.ＰＥＮＡＮＡtiWLlYmcnp
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。647Please respect copyright.ＰＥＮＡＮＡJNIh2tmkeX
647Please respect copyright.ＰＥＮＡＮＡRVaSNkuB7B
647Please respect copyright.ＰＥＮＡＮＡESuyV6QdkX
（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。647Please respect copyright.ＰＥＮＡＮＡXGM3NMTxFJ
647Please respect copyright.ＰＥＮＡＮＡg6mc5bDRH4
647Please respect copyright.ＰＥＮＡＮＡoXyU0IxNx2
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。647Please respect copyright.ＰＥＮＡＮＡFdoWWuO7JF
647Please respect copyright.ＰＥＮＡＮＡCQI49ugEAa
（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。647Please respect copyright.ＰＥＮＡＮＡzow7fLzq9u
647Please respect copyright.ＰＥＮＡＮＡyuAM71EBta
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。647Please respect copyright.ＰＥＮＡＮＡIgt3D65q0c
647Please respect copyright.ＰＥＮＡＮＡAsKaZuKx5W
647Please respect copyright.ＰＥＮＡＮＡgJcFbGWGj3
選用Fe(CN)6 –4的原因基於其兩種特質。647Please respect copyright.ＰＥＮＡＮＡ4do9IJbcda
647Please respect copyright.ＰＥＮＡＮＡTLM0rN7GWi
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。647Please respect copyright.ＰＥＮＡＮＡpo9yniVFOl
647Please respect copyright.ＰＥＮＡＮＡN2QL3Mb1Cn
2.它遇熱的時候會放出電子並成為Fe(CN)6 –3。647Please respect copyright.ＰＥＮＡＮＡjeykofi2k3
647Please respect copyright.ＰＥＮＡＮＡarxKIGTKhK
（圖4）以下就是利用熱力發電的精髓要點。647Please respect copyright.ＰＥＮＡＮＡoD5xAyRYRn
647Please respect copyright.ＰＥＮＡＮＡe5d1yfJYLO
647Please respect copyright.ＰＥＮＡＮＡqBxKYEh5V1
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。647Please respect copyright.ＰＥＮＡＮＡpIBsmP8pio
647Please respect copyright.ＰＥＮＡＮＡUyKgay7Ynu
2.電子在閉合電路走動，產生電流，讓燈泡發亮。647Please respect copyright.ＰＥＮＡＮＡCHsyK2xXYf
647Please respect copyright.ＰＥＮＡＮＡFjav8ltGwD
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。647Please respect copyright.ＰＥＮＡＮＡdwdadJSmzt
647Please respect copyright.ＰＥＮＡＮＡigv5WRoGj8
4.Fe(CN)6 –4在Guanidinium ion的輔助下變成固體結晶。647Please respect copyright.ＰＥＮＡＮＡUARKIYo8b8
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。647Please respect copyright.ＰＥＮＡＮＡEVn6MYC8vB
647Please respect copyright.ＰＥＮＡＮＡzSBNb6c45F
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。647Please respect copyright.ＰＥＮＡＮＡQGaYg2T7WA
647Please respect copyright.ＰＥＮＡＮＡSDt5NxTdfr
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。647Please respect copyright.ＰＥＮＡＮＡhumgJN7O13
647Please respect copyright.ＰＥＮＡＮＡSWrU3U8JMV
（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。647Please respect copyright.ＰＥＮＡＮＡxAgoRO2Owj
647Please respect copyright.ＰＥＮＡＮＡBrWchYrz6o
647Please respect copyright.ＰＥＮＡＮＡJzSZ63KkkC
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。647Please respect copyright.ＰＥＮＡＮＡdF0Lpq5SFe
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。647Please respect copyright.ＰＥＮＡＮＡd3EVIb7lUd
647Please respect copyright.ＰＥＮＡＮＡPuREOYHTH0
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。647Please respect copyright.ＰＥＮＡＮＡ7c5WTZ3hEk
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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/toc647Please respect copyright.ＰＥＮＡＮＡ6FU0vHpbLq
647Please respect copyright.ＰＥＮＡＮＡ6OmZUjm86g
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。647Please respect copyright.ＰＥＮＡＮＡ5BdHsqWYQN
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Link:647Please respect copyright.ＰＥＮＡＮＡC2v25mmtqy
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio647Please respect copyright.ＰＥＮＡＮＡuMTXXzDpj0
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647Please respect copyright.ＰＥＮＡＮＡvRdpmLOY9l
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。647Please respect copyright.ＰＥＮＡＮＡfgyUoGBuIr
647Please respect copyright.ＰＥＮＡＮＡc8vYHa8hiA
Ref1:https://science.sciencemag.org/content/early/2020/09/09/science.abd6749647Please respect copyright.ＰＥＮＡＮＡBIwOn443Nq
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