雪櫃、冷氣機、水煲等等各電器不時都會散發出熱力。598Please respect copyright.ＰＥＮＡＮＡZYswgwmXCF
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。598Please respect copyright.ＰＥＮＡＮＡQ4AqBrNDuk
598Please respect copyright.ＰＥＮＡＮＡx1WxIjIbvc
598Please respect copyright.ＰＥＮＡＮＡBoQSXXtMwi
（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。598Please respect copyright.ＰＥＮＡＮＡsLAnvv6fKx
598Please respect copyright.ＰＥＮＡＮＡ0QnhTZiI0u
598Please respect copyright.ＰＥＮＡＮＡ5PT0AeDkld
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。598Please respect copyright.ＰＥＮＡＮＡ1uKIeTPNox
598Please respect copyright.ＰＥＮＡＮＡpEFaotPcAd
（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。598Please respect copyright.ＰＥＮＡＮＡOX1myUD0NR
598Please respect copyright.ＰＥＮＡＮＡIU519dz7gU
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。598Please respect copyright.ＰＥＮＡＮＡUlBqptfWGO
598Please respect copyright.ＰＥＮＡＮＡLJr5wuWibc
598Please respect copyright.ＰＥＮＡＮＡ7cKvMMWIhS
選用Fe(CN)6 –4的原因基於其兩種特質。598Please respect copyright.ＰＥＮＡＮＡv4hnU3cXAy
598Please respect copyright.ＰＥＮＡＮＡkvo1yzXzPP
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。598Please respect copyright.ＰＥＮＡＮＡWYXGS0icSu
598Please respect copyright.ＰＥＮＡＮＡNbkYYSCEfw
2.它遇熱的時候會放出電子並成為Fe(CN)6 –3。598Please respect copyright.ＰＥＮＡＮＡJJWYT2z5XU
598Please respect copyright.ＰＥＮＡＮＡzpLmbmqYk6
（圖4）以下就是利用熱力發電的精髓要點。598Please respect copyright.ＰＥＮＡＮＡsILLB4QB8d
598Please respect copyright.ＰＥＮＡＮＡKFXj041Y4U
598Please respect copyright.ＰＥＮＡＮＡB6O7EmN5ll
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。598Please respect copyright.ＰＥＮＡＮＡHrgIgJbp8u
598Please respect copyright.ＰＥＮＡＮＡ1y7O0tXxuN
2.電子在閉合電路走動，產生電流，讓燈泡發亮。598Please respect copyright.ＰＥＮＡＮＡsXJLgy5m9L
598Please respect copyright.ＰＥＮＡＮＡoBnzU1pcIW
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。598Please respect copyright.ＰＥＮＡＮＡiEvPU4RcOn
598Please respect copyright.ＰＥＮＡＮＡEycB8rQ21R
4.Fe(CN)6 –4在Guanidinium ion的輔助下變成固體結晶。598Please respect copyright.ＰＥＮＡＮＡkH2bxSziH5
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。598Please respect copyright.ＰＥＮＡＮＡkzMvljH0Ly
598Please respect copyright.ＰＥＮＡＮＡUem0L7mb2C
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。598Please respect copyright.ＰＥＮＡＮＡ9pw6yKMXeK
598Please respect copyright.ＰＥＮＡＮＡlRpJmjnkr8
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。598Please respect copyright.ＰＥＮＡＮＡYcp0BGUhyW
598Please respect copyright.ＰＥＮＡＮＡ5cbRbPUmSz
（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。598Please respect copyright.ＰＥＮＡＮＡyZfgLjhCEs
598Please respect copyright.ＰＥＮＡＮＡjeK9YQaWZE
598Please respect copyright.ＰＥＮＡＮＡdgtwxx97FT
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。598Please respect copyright.ＰＥＮＡＮＡfCyqF18ZFk
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。598Please respect copyright.ＰＥＮＡＮＡ1GSXpfwuTI
598Please respect copyright.ＰＥＮＡＮＡAWNs7wtZ3B
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。598Please respect copyright.ＰＥＮＡＮＡo1gd1FGatk
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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/toc598Please respect copyright.ＰＥＮＡＮＡVvSxSZDich
598Please respect copyright.ＰＥＮＡＮＡOJYl4VIdof
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。598Please respect copyright.ＰＥＮＡＮＡ3holrOfm02
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Link:598Please respect copyright.ＰＥＮＡＮＡpVJ3vgp7UD
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio598Please respect copyright.ＰＥＮＡＮＡJH6dV0QJhI
598Please respect copyright.ＰＥＮＡＮＡyDppQV04Iz
598Please respect copyright.ＰＥＮＡＮＡzBKijJLiWI
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。598Please respect copyright.ＰＥＮＡＮＡEpjWa2V6kZ
598Please respect copyright.ＰＥＮＡＮＡp0ZkHaiWNh
Ref1:https://science.sciencemag.org/content/early/2020/09/09/science.abd6749598Please respect copyright.ＰＥＮＡＮＡuROermnyBx
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