雪櫃、冷氣機、水煲等等各電器不時都會散發出熱力。683Please respect copyright.ＰＥＮＡＮＡQgzpFb7k64
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。683Please respect copyright.ＰＥＮＡＮＡSGnGpvSrXK
683Please respect copyright.ＰＥＮＡＮＡZyFOnaD33h
683Please respect copyright.ＰＥＮＡＮＡuHk13MBp03
（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。683Please respect copyright.ＰＥＮＡＮＡhsTJPBqbIr
683Please respect copyright.ＰＥＮＡＮＡg41EDOKTE5
683Please respect copyright.ＰＥＮＡＮＡngY0egejfL
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。683Please respect copyright.ＰＥＮＡＮＡM7YaRRu5fv
683Please respect copyright.ＰＥＮＡＮＡwUJnOHmSLM
（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。683Please respect copyright.ＰＥＮＡＮＡydwKSc6BFq
683Please respect copyright.ＰＥＮＡＮＡ0gQj4xSN2r
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。683Please respect copyright.ＰＥＮＡＮＡWAe42TLtxh
683Please respect copyright.ＰＥＮＡＮＡq5TcBkJObj
683Please respect copyright.ＰＥＮＡＮＡddoDAr5jcS
選用Fe(CN)6 –4的原因基於其兩種特質。683Please respect copyright.ＰＥＮＡＮＡPsW0m3kFtR
683Please respect copyright.ＰＥＮＡＮＡWODtrDF5nY
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。683Please respect copyright.ＰＥＮＡＮＡM4e547Knko
683Please respect copyright.ＰＥＮＡＮＡ0VBtymGmTW
2.它遇熱的時候會放出電子並成為Fe(CN)6 –3。683Please respect copyright.ＰＥＮＡＮＡrNV1SLQv8c
683Please respect copyright.ＰＥＮＡＮＡZfsbv9f1Tu
（圖4）以下就是利用熱力發電的精髓要點。683Please respect copyright.ＰＥＮＡＮＡsgk0hw8IX7
683Please respect copyright.ＰＥＮＡＮＡJBoiwBeAQO
683Please respect copyright.ＰＥＮＡＮＡfI6xMldoy0
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。683Please respect copyright.ＰＥＮＡＮＡcvs3N3HKxN
683Please respect copyright.ＰＥＮＡＮＡuqyroVMN8I
2.電子在閉合電路走動，產生電流，讓燈泡發亮。683Please respect copyright.ＰＥＮＡＮＡVWTrTk5m3O
683Please respect copyright.ＰＥＮＡＮＡRNx0Eqn0G2
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。683Please respect copyright.ＰＥＮＡＮＡONSr4p911d
683Please respect copyright.ＰＥＮＡＮＡGDuTvZNFQd
4.Fe(CN)6 –4在Guanidinium ion的輔助下變成固體結晶。683Please respect copyright.ＰＥＮＡＮＡTYd7A7aU49
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。683Please respect copyright.ＰＥＮＡＮＡ3Qq4jEx76K
683Please respect copyright.ＰＥＮＡＮＡBqHTLRvzU6
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。683Please respect copyright.ＰＥＮＡＮＡCTZw8Plhq0
683Please respect copyright.ＰＥＮＡＮＡB5TmfIDwZZ
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。683Please respect copyright.ＰＥＮＡＮＡYZlEV4ESMO
683Please respect copyright.ＰＥＮＡＮＡzEFNBpsrAC
（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。683Please respect copyright.ＰＥＮＡＮＡjiIDr5ZqSD
683Please respect copyright.ＰＥＮＡＮＡliksYI1yLK
683Please respect copyright.ＰＥＮＡＮＡuXA4lOCGZ1
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。683Please respect copyright.ＰＥＮＡＮＡdSNSDASPI2
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。683Please respect copyright.ＰＥＮＡＮＡl8wL6fmHeO
683Please respect copyright.ＰＥＮＡＮＡRkyGJLc0vu
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。683Please respect copyright.ＰＥＮＡＮＡDwHPgoIwuI
683Please respect copyright.ＰＥＮＡＮＡYQuz7O86wG
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/toc683Please respect copyright.ＰＥＮＡＮＡzPKiJiKGFy
683Please respect copyright.ＰＥＮＡＮＡCpWg7iO0Bi
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。683Please respect copyright.ＰＥＮＡＮＡNsAI9AsHuT
683Please respect copyright.ＰＥＮＡＮＡrJoGTLmJDz
Link:683Please respect copyright.ＰＥＮＡＮＡpmjdRmQU6e
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio683Please respect copyright.ＰＥＮＡＮＡRGQlL2LwDR
683Please respect copyright.ＰＥＮＡＮＡTvBhUI0TgX
683Please respect copyright.ＰＥＮＡＮＡyFuTL5fRNH
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。683Please respect copyright.ＰＥＮＡＮＡ209mnCdywi
683Please respect copyright.ＰＥＮＡＮＡenQhkGBcfu
Ref1:https://science.sciencemag.org/content/early/2020/09/09/science.abd6749683Please respect copyright.ＰＥＮＡＮＡhhj9NsHZ1d
Penana
search
登入arrow_drop_down
註冊arrow_drop_down
