Brazil waa wax soo saarka ugu weyn adduunka ee niobium waxayna haysataa qiyaastii 98 boqolkiiba kaydadka firfircoon ee meeraha. Curiyahan kiimikaad waxaa loo isticmaalaa daawaha birta, gaar ahaan birta xoogga badan, iyo ku dhawaad ​​aan xad lahayn oo ah codsiyada tignoolajiyada sare ee talefannada gacanta ilaa matoorada diyaaradaha. Brazil waxay dhoofisaa inta badan niobium-ka ay soo saarto oo ah badeecooyin sida ferroniobium.

Walax kale oo Brazil ah ayaa sidoo kale leh tiro badan laakiin aan la isticmaalin waa glycerol, oo ka soo baxa saliidda iyo saponification baruurta ee saabuunta iyo saabuunta, iyo falcelinta transesterification ee warshadaha biodiesel. Xaaladdan oo kale xaaladdu way ka sii daran tahay sababtoo ah glycerol inta badan waa la tuuraa sida qashinka, iyo qashin-qubka saxda ah ee mugga waaweyn waa mid adag.

Daraasad lagu sameeyay Jaamacadda Federaalka ee ABC (UFABC) ee São Paulo State, Brazil, isku darka niobium iyo glycerol ee xalka tignoolajiyada ee wax soo saarka unugyada shidaalka. Maqaal qeexaya daraasadda, oo cinwaankeedu yahay "Niobium waxay kor u qaadaysaa dhaqdhaqaaqa Pd electrocatalytic ee unugyada shidaalka tooska ah ee glycerol," ayaa lagu daabacay ChemElectroChem oo lagu soo bandhigay daboolka joornaalka.

"Mabda' ahaan, unuggu wuxuu u shaqeyn doonaa sida batari glycerol ku shaqeeya si uu ugu dallaco aaladaha yaryar ee elektiroonigga ah sida taleefannada gacanta ama laptop-yada. Waxa loo isticmaali karaa meelaha aanay daboolin korontadu. Hadhowna tignoolajiyada ayaa la waafajin karaa in ay ku shaqeyso baabuurta korontada iyo xitaa in ay koronto siiso guryaha. Waxaa jira codsiyo suurtagal ah oo aan xadidneyn mustaqbalka fog, "farmashiistaha Felipe de Moura Souza, qoraaga koowaad ee maqaalka ayaa u sheegay. Souza waxay si toos ah deeq waxbarasho ka heshay São Paulo Research Foundation-FAPESP.

Unugga, tamarta kiimikaad ee falcelinta oksaydhka glycerol ee anode-ka iyo dhimista hawada oksijiinta ee cathode ayaa loo beddelaa koronto, taasoo ka dhigeysa kaliya gaaska kaarboon iyo biyaha sida hadhaaga. Dareen-celinta dhamaystiran waa C3H8O3 (glycerol dareere ah) + 7/2 O2 (gaaska oksijiinta) → 3 CO2 (gaaska kaarboon) + 4 H2O (biyo dareere ah). Tusaalaha habsocodka ayaa hoos lagu muujiyay.

"Niobium [Nb] wuxuu uga qaybqaataa habka isku-dubarid, isagoo caawinaya ficilka palladium [Pd] ee loo isticmaalo sida anode unugga shidaalka. Ku darida niobium waxay awood u siinaysaa cadadka palladium in kala badh la dhimo, taasoo hoos u dhigaysa qiimaha unugga. Isla mar ahaantaana waxay si weyn u kordhisaa awoodda unugga. Laakiin waxtarkeeda ugu weyn waa hoos u dhigista sunta elektrolytka ee palladium taasoo ka dhalata oksaydhka dhexdhexaadiyeyaasha kuwaas oo si xoog leh loogu dhajiyay hawlgalka muddada dheer ee unugyada, sida carbon monoxide, "ayuu yidhi Mauro Coelho dos Santos, borofisar ka tirsan UFABC , lataliyaha qoraalka ee Souza's doctorate-ka tooska ah, iyo baaraha maamulaha daraasadda.

Marka laga eego dhinaca deegaanka, taas oo in ka badan abid ay tahay in ay noqoto shuruudo go'aamin kara doorashooyinka tignoolajiyada, unugga shidaalka glycerol waxaa loo arkaa xal suuban sababtoo ah waxay bedeli kartaa matoorada gubashada ee ku shaqeeya shidaalka fosil.