Umthengisi weTin Oxide (Stannic Oxide) eMzantsi Afrika

Yintoni i-Tin Oxide (i-Stannic Oxide)?

I-Tin(IV) oxide (SnO₂), ekwaziwa ngokuba yi-stannic oxide okanye i-cassiterite kwimo yayo yeminerali, ngumgubo omhlophe onesakhiwo sekristale ye-rutile. Kwimo yayo ecocekileyo yi-semiconductor ye-n-type ene-bandgap ebanzi (~3.6 eV). Olu dibaniso lokucaca kwi-spectrum ebonakalayo kunye ne-electrical conductivity xa ixutywe ngokufanelekileyo yenza i-SnO₂ ibe yenye yezona oxides zibalulekileyo kwezobuchwepheshe ezicacileyo (ii-TCO), kunye nezicelo eziqala kwi-optoelectronics ukuya kwi-gas sensing.

Usetyenziso lokupholisha kunye nobucwebe

Umgubo we-tin oxide sisixhobo sokugquma esisebenzayo nesisebenza kakuhle kwisinyithi, iglasi, iseramikhi, kunye nomphezulu wamatye. Sivelisa ukugqitywa okuhle nokukhazimlayo ngaphandle kokukrwela kwaye sisetyenziswa ngabathengisi bezinto zokuhombisa igolide, isilivere, kunye nobucwebe beplatinum. Kwi-optics, i-SnO₂ isetyenziselwa ukugquma iglasi ye-optical, iilensi, kunye namatye anqabileyo kuquka iidayimani kunye neesafire. Ukurhawuzelela kwayo okuncinci kunye nokungakhathali kweekhemikhali kwenza ukuba ifaneleke kwimisebenzi yokugquma ethambileyo.

Iingubo zokuqhuba ezicacileyo (i-TCO)

Iingubo ze-SnO₂ ezifakwe i-fluorine-doped tin oxide (FTO) kunye neengubo ze-SnO₂ ezingenayo i-indium zisetyenziswa njengee-electrode ezibonisa ukukhanya kwiiglasi ze-solar cells, ii-flat panel displays, ii-electrochromic smart windows, kunye nee-defrost heaters. Iingubo ze-SnO₂ zifakwa yi-chemical vapour deposition (CVD), i-spray pyrolysis, okanye i-sputtering. Uzinzo lwazo oluhle kakhulu lweekhemikhali kunye nokunamathela kwiglasi kunika iingubo ze-FTO iingenelo kune-indium tin oxide (ITO) kwizicelo ezifuna ukuqina kunye neendleko eziphantsi.

Izinzwa zegesi kunye neeseramikhi

I-tin oxide yeyona nto iphambili ekufumaneni izinto kwiisensa zegesi ze-semiconductor zokufumanisa iigesi ezinokutsha (i-LPG, i-methane, i-hydrogen), iigesi ezinobuthi (i-CO, i-NOₓ), kunye neekhompawundi ze-organic eziguquguqukayo. Ukumelana kwayo nomphezulu kutshintsha kakhulu xa kukho iigesi ezijoliswe kuzo, okuvumela ukufunyanwa okunobuthathaka nokungabizi kakhulu. Kwi-ceramics, i-SnO₂ isetyenziswa njenge-glass opacifier, i-color-stabilizing ceramic pigment modifier, kunye ne-electrode material kwii-glass melting ovens.