Ukuqhathaniswa kwamaSeli e-Voltaic namaSeli e-Electrolytic
Sekungamakhulu eminyaka, i-electrochemistry ibilokhu iyigatsha elikhulu le-chemistry, ifunda ubudlelwano phakathi kokusabela kukagesi kanye namakhemikhali. Esifundweni se-electrochemistry, izinhlobo ezimbili ezijwayelekile zamaseli e-electrode amaseli e-voltaic (abizwa nangokuthi amaseli e-galvanic) namaseli e-electrolytic. Nakuba womabili asebenza ngesimiso esifanayo—ukuguqulwa kwamandla amakhemikhali abe amandla kagesi noma okuphambene nalokho—anemehluko ebalulekile eyisisekelo. Lesi sihloko sizoxoxa ngokuningiliziwe ngokuqhathanisa phakathi kwamaseli e-voltaic namaseli e-electrolytic, sihlanganisa izincazelo zawo, izimiso zokusebenza, izakhiwo, ukusetshenziswa, kanye nokubaluleka empilweni yansuku zonke.
Incazelo kanye nezimiso eziyisisekelo
Iseli le-Voltaic: Iseli le-voltaic, noma iseli le-galvanic, iyithuluzi elikhiqiza ugesi ngokusebenzisa ukusabela kwamakhemikhali okuzenzakalelayo (ukunciphisa i-oxidation). Kuleli seli, ukusabela okuzenzakalelayo kukhiqiza amandla kagesi angasetshenziswa ngezinhloso ezahlukahlukene.
Amaseli E-Electrolytic: Amaseli e-Electrolytic asebenza ngendlela ephambene. Asebenzisa amandla kagesi avela emthonjeni wangaphandle ukuphoqa ukusabela kwe-redox okungahleliwe ukuthi kwenzeke. Lokhu kusabela kungenzeka kuphela uma kukhona umthombo kagesi wokuphoqa ama-ion ukuthi asabele.
Ukwakheka Kwamaseli E-Voltaic Namaseli E-Electrolytic
Isakhiwo Seseli Le-Voltaic:
1. I-Anode kanye ne-Cathode: Kuseli le-voltaic, i-anode iyi-electrode lapho kwenzeka khona i-oxidation, kanti i-cathode iyi-electrode lapho kwenzeka khona ukuncipha.
2. Ibhuloho Likasawoti: Le ngxenye isebenza ukugcina ibhalansi kagesi ngokuvumela ama-ion ukuthi asuke engxenyeni eyodwa yeseli aye kwenye ngaphandle kokuxubana ngqo.
3. Ama-electrolyte: Ama-electrolyte ayizixazululo noma izinto eziqukethe ama-ion amahhala adlulisa ugesi phakathi kwama-electrode.
Isakhiwo Seseli Le-Electrolysis:
1. Ama-electrode: Eselini le-electrolytic, ama-electrode nawo aqukethe i-anode kanye ne-cathode, kodwa izindima zawo ziguquguquka uma kuqhathaniswa namaseli e-voltaic. I-anode iyi-electrode enhle, kanti i-cathode iyi-electrode engemihle.
2. Umthombo Wamandla: Amandla asetshenziswa ukuphoqa ukusabela kwe-redox avela emthonjeni wamandla wangaphandle njengebhethri noma omunye umthombo wamandla we-DC.
3. Ama-electrolyte: Ama-electrolyte kumaseli e-electrolytic nawo abalulekile ekuhlinzekeni ama-ion adingekayo ekusabeleni.
Isimiso somsebenzi
Isimiso Sokusebenza Seseli Le-Voltaic:
Iseli le-voltaic lakhiwe ngamaseli amabili ayingxenye axhunywe yibhuloho likasawoti kanye nentambo exhumanisayo. Ukusabela kwe-redox okuzenzakalelayo kwenzeka ngaphakathi kwaleli seli. Lapho ama-electrode amabili angafani (ngokuvamile izinsimbi) ecwiliswa ku-electrolyte, ama-ion ensimbi avela ku-anode (i-electrode engemihle) ayaxuba futhi akhulule ama-electron. Lawa ma-electron ageleza ngentambo exhumanisayo aye ku-cathode (i-electrode engemihle), lapho ama-ion esixazululweni ethola ama-electron futhi ancishiswe.
Isimiso Sokusebenza Seseli Le-Electrolysis:
Kuseli le-electrolytic, umthombo kagesi wangaphandle usebenzisa i-voltage ukushayela ugesi nge-electrolyte. Ama-ion esixazululweni se-electrolyte akhangwa ama-electrode anamacala aphambene—ama-cations aya ku-cathode (lapho kwenzeka khona ukuncipha) kanye nama-anion aya ku-anode (lapho kwenzeka khona i-oxidation). Ukusabela okwenzeka ku-electrode ngayinye kubangela inqubo ye-redox ebingeke yenzeke ngokuzenzakalelayo ngaphandle komthombo wamandla wangaphandle.
Sebenzisa Empilweni Yansuku Zonke
Ukusetshenziswa Kwamaseli E-Voltaic:
1. Amabhethri: Amabhethri ayindlela evame kakhulu yokusetshenziswa kwamaseli e-voltaic, okuhlanganisa amabhethri e-alkaline namabhethri e-lithium-ion, asetshenziswa kumadivayisi kagesi aphathwayo, ezimotweni zikagesi, nakwezinye izinhlelo zokusebenza eziningi.
2. Ukuhlanganiswa kwe-Galvanization: Inqubo yokumboza insimbi ngesendlalelo esivikelayo ngenqubo ye-redox ezenzakalelayo isebenzisa futhi isimiso seseli le-voltaic ukuvimbela ukugqwala.
Ukusetshenziswa Kwamaseli E-Electrolysis:
1. Ukukhiqizwa Kwegesi: Amaseli e-electrolytic asetshenziselwa ukukhiqiza igesi ye-hydrogen ne-oxygen emanzini ngenqubo eyaziwa ngokuthi i-water electrolysis.
2. Ukufakwa kwe-Electroplating: Leli seli lisetshenziswa futhi enqubweni yokufakwa kwensimbi ukuze linikeze ungqimba oluvikelayo noma lokuhlobisa kwezinye izinto ngokusabela okungazenzekeli.
3. Ukukhiqizwa Kwamakhemikhali: Amaseli e-electrolytic asetshenziswa embonini ukukhiqiza amakhemikhali afana ne-chlorine, i-sodium hydroxide, nezinye izinto ezahlukahlukene ze-electrolytic.
Ukuqhathanisa Okubalulekile
1. Amandla: Amaseli e-voltaic akhiqiza amandla kagesi avela ekusabela kwamakhemikhali okuzenzakalelayo, kuyilapho amaseli e-electrolytic edinga amandla kagesi angaphandle ukuze enze ukusabela kwamakhemikhali okungahambisani nokuzenzakalelayo.
2. Isiqondiso Sokusabela: Ukusabela kwe-Redox kumaseli e-voltaic kwenzeka ngokwako, kanti kumaseli e-electrolytic, ugesi ubangela ukusabela kwe-redox.
3. Ama-electrode: Kuseli le-voltaic, i-anode i-negative kanti i-cathode i-positive. Kuseli le-electrolytic, i-anode i-positive kanti i-cathode i-negative.
4. Ukusetshenziswa: Amaseli e-voltaic avame ukusetshenziselwa ukukhiqiza amandla kagesi ngokukhululeka, kuyilapho amaseli e-electrolytic esetshenziselwa ukwenza ukusabela kwamakhemikhali okuthile okungeke kwenzeke ngokwemvelo.
Isiphetho
Womabili amaseli e-voltaic kanye ne-electrolytic ayizinto ezintsha ezibalulekile ezishintshe kakhulu izici eziningi zokuphila kwanamuhla, kusukela kubuchwepheshe bokugcina amandla kuya ekukhiqizeni nasekugqokeni kwezimboni. Nakuba ngalinye linezimiso zokusebenza ezahlukene kanye nezinhlelo zokusebenza, zombili zibonisa ukuxhumana okuphawulekayo phakathi kokusabela kwamakhemikhali kanye namandla kagesi. Ukuqonda umehluko kanye nokufana kwawo kungandisa ukuqonda kwethu ukusetshenziswa okungenzeka kwe-electrochemistry ekuxazululeni izinkinga zansuku zonke kanye nokuthuthukisa ubuchwepheshe besikhathi esizayo.
