I-Platinized titanium anodes synopsis
I-Titanium/Tantalum/i-Niobium-based platinum-based plated anode process, isebenzisa i-electroplating okanye i-brush plating okanye iquka inkqubo yokugquma, inkangeleko imhlophe yesilivere eqaqambileyo, eneempawu zokuxinana okukhulu kwe-anode yangoku kunye nobomi benkonzo ende.
I-titanium anodes ye-Platinized synergistically idibanisa iimpawu ezifanelekileyo ze-electrochemical zeplatinam (Pt) kunye nokumelana nokubola kunye nezinye iimpawu ze-titanium. Ziyi-anodes ngokuqhelekileyo ziveliswa yi-electrochemical deposition yomaleko obhityileyo kakhulu wentsimbi yeplatinam okanye iioksidi zeplatinam kwi-titanium substrate. Ezi anodes zisebenza njenge-inert anode ezinokuqina okuphezulu kwaye zikhethwa ngenxa yokuba zihlala zinganyibiliki kwii-electrolytes eziqhelekileyo.
IPlatinam yintsimbi exabisekileyo eyaziwa ngeempawu zayo ezithandekayo ezikhethekileyo, kubandakanywa
- Ukuchasa okuphezulu kwi-corrosion
- Ukumelana ne-oxidation
- Ukuhanjiswa kombane okuphezulu
- Ukukwazi ukwenza njenge-catalyst
- Ukuzinza kweekhemikhali eziphezulu
- Ukukwazi ukuvelisa ukugqiba okugqwesileyo
Izinga lokusetyenziswa eliphantsi elixhaswa yi-conductivity ephezulu yombane yenza i-platinum ibe yinto ekhethiweyo ye-anode. Kodwa ngenxa yexabiso layo eliphezulu, kuphela umaleko omncinci obhityileyo weplatinam odla ngokutyalwa kwizinto ezahlukeneyo ezikwaziyo ukumelana nomhlwa njenge tantalum (Ta), niobium (Nb) okanye ititanium (Ti) ukuze uthathe ithuba lokusebenzisa ezi mpawu zithandekayo.
Itekhnoloji yokucubungula i-titanium anode yeplatinized
Ngokufakwa kwe-electroplating okanye inkqubo ye-brush plating (kubandakanywa neplatinam yokwenziwa kwe-sintering process) isinyithi seplatinam kwi-titanium (i-tantalum, i-niobium), i-composite ye-metallic coating inokuveliswa kwi-substrate. Le ngqungquthela iqulethe isinyithi se-titanium, i-platinum, i-oxides ye-titanium kunye neekhompawundi zetsimbi ze-titanium kunye neplatinam.
Inkqubo yokwenziwa kweplatinam yokugquma: senza iplatinized titanium anode ngokwamkela inkqubo yokubola kwe-thermal ukuze sifumane umaleko oshinyeneyo ongagugiyo weplatinam. Umphezulu we-anode uguqulwa ukuze uphucule ukunamathela kweplatinam kunye nokuphucula ngokubonakalayo ukufana kobunzima bokugquma, kwakhona ukunciphisa i-porosity yokwambathisa inika ukuxhathisa okukhulu kweasidi kwi-anode. , Inkqubo yokushisa yokuphatha i-composite coating ivelisa utshintsho kwi-chemical composition kunye ne-morphology ephucula iimpawu zayo ze-electrochemical. Le platinam igqunywe nge-titanium anode inokwenziwa ibe yibha, intonga, ishidi, i-mesh kunye nezinye iimilo ezilungiselelwe ukuhlangabezana neemfuno zakho ezikhethekileyo.
Ukuziphatha kweekhemikhali ze-platinized titanium anode
IPlatinamu ikhethwa kwindawo yangaphandle ye-anode kuba ixhathisa kakhulu ekudlekeni kwaye inokuqinisekisa ukuhamba kwangoku kwimithombo yeendaba ezininzi ze-electrolyte ngaphandle kokukhokelela ekwakhiweni kocweyo lwe-insulating ngokwayo. Ngenxa yokuba ingonakalisi, ayivelisi iimveliso zomhlwa kwaye ke izinga lokusetyenziswa liphantsi kakhulu.
IPlatinam ayisebenzi kwiityuwa ezidityanisiweyo kunye neeasidi, ngelixa inyibilika kwi-aqua regia. Akukho mngcipheko we-hydrogen embrittlement. (Unokufunda malunga ne-hydrogen embrittlement kwinqaku elithi Intshayelelo ye-Hydrogen Embrittlement.) Yenye yeentsimbi ezimbalwa ezinqabileyo ezixhathisa ngokugqibeleleyo iikloridi zamanzi olwandle.
I-Titanium ibonisa ukuxhathisa okulungileyo ngokufanelekileyo kwimeko-bume yaselwandle (ingakumbi amanzi olwandle). Ayinakusabela ngesisombululo esigxininisiweyo (80%) se-metallic chlorides. Nangona kunjalo, iyakwazi ukuhlaselwa yi-hydrofluoric acid (HF) kunye ne-hydrochloric acid eshushu (HCl) yoxinzelelo oluphezulu. Kwane<em>hydrogen peroxide ne<em>nitric acid eshushu zinokuhlasela i<em>titanium. I-oxidizing agents ngokuqhelekileyo ayihlaseli i-titanium kuba yenza ngokukhawuleza i-coating oxide coating. Nangona kunjalo, izinto ezingenayo i-oxidizing ezifana ne-sulfuric acid (ngaphezu kwe-5% yoxinaniso) kunye ne-phosphoric acid (ngaphezu kwe-30%) inokuhlasela i-titanium. Ukusuka kwindawo yokujonga i-hydrogen embrittlement, i-titanium ihamba ngcono kune-tantalum njengento ye-anode.
Izinto ezilungileyo ze-titanium anode zeplatinized
IPlatinam ineenzuzo zokungasebenzi kakuhle kwe-electrochemical, amandla omatshini, ukusebenza kakuhle kunye nokuhanjiswa kombane. Nangona kunjalo, kubiza kakhulu. Ukuphuhliswa kweplatinum kwi-titanium kunye neplatinam kwi-tantalum (i-plated kunye ne-cladded) imathiriyeli ivule amandla okusebenzisa ezi zinto ze-anode zokugqiba isinyithi kunye neenkqubo zokukhusela i-cathodic kwizicelo ezibalulekileyo.
Xa isetyenziselwa i-anodes kumajelo anamanzi afana namanzi olwandle, i-titanium yenza umaleko ozinzileyo wefilimu ye-oxide ye-insulating oxide kumphezulu ozinzile ngaphantsi kwe-voltage ethile yokuphuka, ngaloo ndlela ithintela ukuhamba kwangoku phakathi kwemithombo yamanzi kunye ne-anode. Kwimekobume yaselwandle, i-oxide eyenziwe kwi-titanium iyakwazi ukumelana ne-12 volts, ngaphaya kwayo umqobo wokukhusela uphahla kwaye ukuhamba kwangoku kuqala inkqubo yokubola.
Iimpawu zeplatinized titanium anode
- iplatinized titanium anodes geometry ihlala ingatshintshi ngokuhamba kwexesha.
- Ukonga amandla.
- Ukumelana nomhlwa okuphezulu.
- Uzinzo oluphezulu lwe-dimensional kunye nokumelana nomthwalo.
- Amanqanaba aphezulu okubambelela kwintsimbi yentsimbi exabisekileyo.
- Ukuphuculwa kokumelana nokuhlaselwa kwe-asidi.
- Ukunyuswa kwemveliso kunye namaxesha ancitshisiweyo okubeka.
- Ubunzima bokukhanya (ingakumbi i-anode yegridi ye-mesh).
- Ubomi obude bokusebenza; isondlo-free.
- Ubomi benkonzo ende phantsi koxinzelelo oluphezulu lwangoku kwizisombululo ze-acidic.
- Ukuvelisa imilo enzima ye-anode.
- Ukuchasa ukuthotywa kojongano ngeediphozithi.
Ukusetyenziswa kwe-titanium anode yeplatinized
- iplating ethe tye, i-pulse plating;
- Ukufakwa kwentsimbi yentsimbi exabisekileyo – umz. iibhafu zeAu, Pd, Rh neRu;
- I-electroplating yentsimbi engeyiyo i-ferrous - umz. iibhafu ze-Ni, Cu, Sn, Zn kunye ne-non-fluoride Cr;
- Iibhodi zeesekethe eziprintiweyo ze-electroplating;
- Ukukhuselwa kwangoku kweCathodic.
Sinokuvelisa i-titanium ye-platinized (okanye i-Ta, i-Nb) ye-anodes yeepleyiti, i-mesh, iityhubhu, okanye ilungiselelwe ngokweemfuno zabathengi.