Ukutyhala umda woxinaniso lwamandla ee-super-capacitors, iklasi entsha yemathiriyeli ye-electrode enezakhiwo ezithandekayo ifuneka ngamandla.
I-binary metal sulfides ibambe isithembiso esikhulu njengesixhobo se-electrode kwizixhobo zokugcina amandla aphezulu ngenxa yokuba zinika umsebenzi ophezulu we-electrochemical kunye nomthamo ophezulu kune-mono-metal sulfides.
Apha, uyilo olusengqiqweni kunye nokwenziwa kwee-nano-sheets ze-NiCo 2 S 4 ezixhaswa kwi-nitrogen-doped carbon foams (NCF) (ezisekelwe kwi-SINOYQX carbonized melamine foam) ziboniswa njenge-electrode entsha eguquguqukayo yee-super-capacitors.
Indlela elula enamanyathelo amabini iyenziwa yokukhula kwee-nanosheets zeNiCo 2 S 4 kwi-NCF ngokunamathela okuqinileyo, okubandakanya ukukhula kwe-precursor yeNi-Co kunye nokuguqulwa okulandelayo kube zii-nanosheets zeNiCo 2 S 4 ngenkqubo ye-sulfidation.
Ixhamla kwiimpawu zokwakheka kunye noyilo lwe-electrode ye-3D, i-electrode ye-NiCo 2 S 4 /NCF ibonakalisa ukusebenza kwe-electrochemical okuphuculweyo kakhulu kunye ne-capacitance ephezulu kakhulu (877 F g −1 kwi-20 A g −1 ) kunye nozinzo oluhle kakhulu lokuhamba ngebhayisikile.
Ngaphezu koko, isixhobo se-super-capacitor esingenazo i-binder-free asymmetric senziwa ngokusebenzisa i-NiCo 2 S 4 /NCF njenge-electrode elungileyo kunye ne-ordered mesoporous carbon (OMC)/NCF njenge-electrode engalunganga; oku kubonisa uxinano lwamandla aphezulu (≈45.5 Wh kg −1 kwi-512 W kg −1 ).
Ukuze ufumane ulwazi oluthe kratya malunga nale projekthi, nceda uzive ukhululekile ukuqhagamshelana ne-SINOYQX nge: [email protected] okanye uthumele i-imeyile ku- [email protected] ULaifa Shen, uJie Wang, uGuiyin Xu, uHongsen Li, uHui Dou kunye noXiaogang Zhang abavela kwiKholeji yeSayensi yezinto kunye noBunjineli iJiangsu Ilebhu ephambili yezinto kunye neeTekhnoloji zoGuqulo lwaMandla, eNanjing, ePR China Ukuze kunyuswe umda woxinano lwamandla kwii-super-capacitors, udidi olutsha lwezinto ze-electrode ezinezakhiwo ezilungileyo lufuneka kakhulu.