Ukusetshenziswa kwe-noble metal catalyst ekususeni i-carbon monoxide (CO).

I-Carbon monoxide (CO) iyigesi enobuthi evamile, elimaza kakhulu umzimba womuntu kanye nemvelo.Emikhiqizweni eminingi yezimboni kanye nempilo yansuku zonke, isizukulwane kanye nokukhishwa kwe-CO akunakugwenywa.Ngakho-ke, kubalulekile ukuthuthukisa ubuchwepheshe bokususa i-CO obusebenzayo nobusebenzayo.I-Noble metal catalysts yiklasi lama-catalysts anomsebenzi ophezulu we-catalytic, ukukhetha nokuzinza, asetshenziswa kabanzi ekususweni kwe-CO nakweminye imikhakha.

Izinhlobo eziyinhloko kanye nezakhiwo zeizicukuthwaneama-catalysts ensimbi

izicukuthwaneama-catalyst ensimbi ikakhulukazi afaka iplatinum (Pt), i-palladium (Pd), i-Iridium (Ir), i-rhodium (Rh), igolide (Au) nezinye izinsimbi.Lezi zinsimbi zinezakhiwo ezihlukile ze-elekthronikhi kanye nokuhlelwa kwe-athomu ezivumela ukuthi zibonise izakhiwo ezinhle kakhulu kuma-catalyst.Ekususweni kwe-CO, i-izicukuthwanei-metal catalyst ingabangela i-CO ukuthi isabele nge-oxygen (O2) ukuze ikhiqize isikhutha esingenangozi (CO2).I-noble metal catalyst inomsebenzi ophezulu we-catalytic, ukukhetha okuphezulu nokusebenza okuhle kokulwa nobuthi, futhi ingasusa ngokuphumelelayo i-CO ekushiseni okuphansi.

Indlela yokulungiselela yeizicukuthwanei-catalyst yensimbi

Izindlela zokulungiselela zeizicukuthwanei-metal catalyst ikakhulukazi ihlanganisa indlela yokukhulelwa, indlela ye-coprecipitation, indlela ye-sol-gel, njll. Indlela ngayinye inezinzuzo zayo kanye nokubi ngokusebenza kwe-catalyst, izindleko nokusebenza.Ukuze kuthuthukiswe ukusebenza kweizicukuthwaneama-catalysts ensimbi futhi anciphise izindleko, abacwaningi baye basebenzisa ukulayisha, ubuchwepheshe be-nano kanye ne-alloying.

Inqubekelaphambili yocwaningo ekusetshenzisweni kwama-noble metal catalyst ekususeni i-CO

Seyenziwe inqubekelaphambili yocwaningo ekusetshenzisweni kweizicukuthwaneama-catalysts ensimbi ekususweni kwe-CO, njenge:

4.1 Ukuhlanzwa kwe-exhaust yemoto:izicukuthwaneama-catalysts ensimbi asetshenziswa kakhulu kuzihlanzi zokukhipha umoya wezimoto, ezingasusa ngempumelelo amagesi ayingozi njenge-CO, ama-hydrocarbon compounds (HC) nama-nitrogen oxides (NOx).Ngaphezu kwalokho, abacwaningi baphinde bahlole inhlanganisela yeizicukuthwaneama-catalyst ensimbi anezinye izinto ezisebenzayo ukuze kuthuthukiswe ukusebenza nokuzinza kwezicoci zezimoto.

4.2 Ukuhlanzwa komoya wasendlini: Ukusetshenziswa kweizicukuthwaneama-catalyst ensimbi ezihlanzini zomoya zasendlini adonse ukunakwa okwengeziwe, okungasusa ngempumelelo i-CO, i-formaldehyde, i-benzene namanye amagesi ayingozi angaphakathi.Abacwaningi nabo benza okushaizicukuthwaneama-catalysts ensimbi ukuthuthukisa ukusebenza, ukunciphisa izindleko kanye nokunciphisa usayizi wezihlanzi zomoya zasendlini.

4.3 Ukwelashwa kwegesi ye-Industrial flue:izicukuthwaneama-catalysts ensimbi anezinhlobonhlobo zamathemba okusebenza emkhakheni wokwelashwa kwegesi ye-flue yezimboni, njengamakhemikhali, i-petroleum, insimbi nezinye izimboni.Abacwaningi bathuthuka ngendlela esebenza kahle futhi ezinzileizicukuthwaneama-catalysts ensimbi ukuhlangabezana nezidingo zokwelashwa kwegesi ye-flue ehlukene yezimboni.

4.4 Fuel cell:izicukuthwaneama-catalyst ensimbi adlala indima ebalulekile kuma-fuel cell, enza ukukhiqizwa kwamanzi nogesi ku-hydrogen nomoya-mpilo.Abacwaningi bahlola idizayini nokwenza kahle kokushaizicukuthwaneama-catalysts ensimbi ukuthuthukisa ukusebenza nokuqina kwamaseli kaphethiloli.

Isifinyezo

izicukuthwaneama-catalyst ensimbi anezinzuzo eziphawulekayo ekususeni i-carbon monoxide, futhi enze inqubekelaphambili ebalulekile yocwaningo emikhakheni yokuhlanza igesi ekhishwa yimoto, ukuhlanzwa komoya wasendlini, ukwelashwa kwegesi ye-flue yezimboni namaseli kaphethiloli.Nokho, izindleko eziphezulu kanye nokushoda kweizicukuthwaneama-catalysts ensimbi ahlala enezinselele ezinkulu ekuthuthukisweni kwawo.Ucwaningo lwesikhathi esizayo ludinga ukugxila ekuthuthukiseni indlela yokuhlanganiswa, ukuthuthukiswa kokusebenza, ukunciphisa izindleko kanye nokusimama kweizicukuthwaneama-catalysts ensimbi ukukhuthaza ukusetshenziswa okubanzi kweizicukuthwaneama-catalysts ensimbi emkhakheni wokususwa kwe-carbon monoxide.