Ukusunduza umkhawulo wokuminyana kwamandla wama-super-capacitor, ikilasi elisha lezinto ze-electrode ezinezakhiwo ezivumayo lidingeka kakhulu.
Ama-sulfide ensimbi kanambambili anesithembiso esihle njengempahla ye-electrode yamadivayisi okugcina amandla asebenza kahle ngoba anikeza umsebenzi ophakeme we-electrochemical namandla aphezulu kune-mono-metal sulfide.
Lapha, ukwakheka okunengqondo kanye nokwenziwa kwama-nano-sheet e-NiCo 2 S 4 asekelwe kuma-foam e-carbon afakwe i-nitrogen (NCF) (asekelwe ku-foam ye-melamine eyenziwe nge-carbon ye-SINOYQX) kwethulwa njenge-electrode entsha eguquguqukayo yama-super-capacitors.
Indlela elula enezinyathelo ezimbili yakhelwe ukukhula kwama-nanosheet e-NiCo 2 S 4 ku-NCF ngokunamathela okuqinile, okubandakanya ukukhula kwesandulela se-Ni-Co kanye nokuguqulwa okulandelayo kube ama-nanosheet e-NiCo 2 S 4 ngenqubo ye-sulfidation.
Izuza ezicini zokwakheka kanye nokwakheka kwama-electrode e-3D, i-electrode ye-NiCo 2 S 4 /NCF ikhombisa ukusebenza kwe-electrochemical okuthuthukisiwe kakhulu nge-capacitance ephezulu kakhulu (877 F g −1 ku-20 A g −1 ) kanye nokuqina okuhle kakhulu kokujikeleza.
Ngaphezu kwalokho, idivayisi ye-super-capacitor engena-binder engena-asymmetric nayo yenziwa ngokusebenzisa i-NiCo 2 S 4 /NCF njenge-electrode enhle kanye ne-ordered mesoporous carbon (OMC)/NCF njenge-electrode engemihle; lokhu kubonisa ukuminyana kwamandla aphezulu (≈45.5 Wh kg −1 ku-512 W kg −1 ).
Ukuze uthole ulwazi olwengeziwe mayelana nephrojekthi, sicela uzizwe ukhululekile ukuxhumana ne-SINOYQX nge: [email protected] noma uthumele i-imeyili ku- [email protected] Laifa Shen, Jie Wang, Guiyin Xu, Hongsen Li, Hui Dou kanye noXiaogang Zhang abavela eCollege of Materials Science and Engineering Jiangsu Key Laboratory of Materials and Technologies for Energy Conversion, Nanjing, PR China Ukuze kuthuthukiswe umkhawulo wamandla wama-super-capacitors, kudingeka kakhulu uhlobo olusha lwezinto ze-electrode ezinezakhiwo ezinhle.