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OALib Journal期刊
ISSN: 2333-9721
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低温熔盐电解法制备金属ti及其动力学
Keywords: 金属材料,电脱氧,熔盐,循环伏安
Abstract:
？采用熔盐电脱氧法,以石墨固定的氧化物粉末为阴极,石墨棒为阳极,nacl--cacl2混合熔盐为电解质,石墨坩埚为电解槽在800℃低温熔盐中制备金属ti。进行不同电解时间的电脱氧实验,研究了阴极产物。分别以石墨和钼为工作电极、对电极和参比电极,对tio2电脱氧还原的过程进行了动力学研究,测定了循环伏安曲线。结果表明：未烧结tio2粉末经过40h的恒压电解后,tio2还原成ti；石墨电极虽然有较宽的电化学窗口,但是电极活性高、表面积大,不能在高温条件下作为cv曲线电极材料使用；钼的电化学性质稳定,是比较理想的电极材料；二氧化钛的电化学还原分四步进行:tio2/ti3o5,ti3o5/ti2o3,cati2o4/tio,tio/t,前两步都伴随catio3与cati2o4的自发形成。
| [1] | 1shaohuaigaohdaz,journalofwuhanuniversityoftechnology–materialsscienceeditioninfluenceofabutmentmaterialonthestressofimplant–supportedall–ceramicsinglecrown,journalofwuhanuniversityoftechnology–materialsscienceedition,27(1),96(2012)
|
| [2] | 2songxiping,titaniumalloyapplicationstatusandr&dtrendsincarparts,titaniumindustryprogress,(05)(2007)
|
| [3] | (宋西平,钛合金在汽车零件上的应用现状及研发趋势,钛工业进展,(05)(2007))
|
| [4] | 3satok,santoshm,titaniuminquartzasarecordofultrahigh–temperaturemetamorphism:thegranulitesofkarur,southernindia,mineralogicalmagazine,71(2),143(2007)
|
| [5] | 4danieleylonkoy,titanium–firstsixdecades:past,presentandfuture[j].raremetalmaterialsandengineering,(35),1(2006)
|
| [6] | 6froesf,titaniumandotherlightmetals:let’sdosomethingaboutcost,jomjournaloftheminerals,metalsandmaterialssociety,50(9),15(1998)
|
| [7] | 11babam,onoy,suzukiro,tantalumandniobiumpowderpreparationfromtheiroxidesbycalciothermicreductioninthemoltencacl2,66(2–4),466(2005)
|
| [8] | 13lepf,grobnero,laurentjm,electronstimulatedmoleculardesorptionofanon–evaporablezr–v–fealloygetteratroomtemperature,nuclearinstruments&methodsinphysicsresearchsectionb–beaminteractionswithmaterialsandatoms,194(4),434(2002)
|
| [9] | 18zoux,lux,zhouz,lic,dingw,directselectiveextractionoftitaniumsilicideti5si3frommulti–componentti–bearingcompoundsinmoltensaltbyanelectrochemicalprocess,56(24),8430(2011)
|
| [10] | 20chengz,fraydj,farthingtw,directelectrochemicalreductionoftitaniumdioxidetotitaniuminmoltencalciumchloride,nature,407(6802),361(2000)
|
| [11] | 21chenc.y.,lux.g.,comparisonofffcandsomprocessesforpreparationofchromiummetal,actametallurgicasinica,44(2),145(2008)
|
| [12] | 22schwandtc,alexanderdt,fraydj,theelectro–deoxidationofporoustitaniumdioxideprecursorsinmoltencalciumchlorideundercathodicpotentialcontrol,electrochimicaacta,54(14),3819(2009)
|
| [13] | 23liaox,xieh,zhaiyy,zhangy,preparationofal3scintermetalliccompoundbyffcmethod,journalofmaterialssciencesandtechnology,25(5),717(2009)
|
| [14] | 24schwandtc,fraydj,determinationofthekineticpathwayintheelectrochemicalreductionoftitaniumdioxideinmoltencalciumchloride,electrochimicaacta,51(1),66(2005)
|
| [15] | 26cheng,frayd,farthingt,cathodicdeoxygenationofthealphacaseontitaniumandalloysinmoltencalciumchloride,metallurgicalandmaterialstransactionsb,32(6),1041(2001)
|
| [16] | 27schwandtc,alexanderdt,fraydj,theelectro–deoxidationofporoustitaniumdioxideprecursorsinmoltencalciumchlorideundercathodicpotentialcontrol,electrochimicaacta,54(14),3819(2009)
|
| [17] | 28fraydj,chengz,reductionoftitaniumandothermetaloxidesusingelectrodeoxidation,materialsscienceandtechnology,20(3),295(2004)
|
| [18] | 30chengz,fraydj,voltammetricstudiesoftheoxygen–titaniumbinarysysteminmoltencalciumchloride,journaloftheelectrochemicalsociety,149(11),e455(2002)
|
| [19] | 31dringk,drd,inmand,voltammetryoftitaniumdioxideinmoltencalciumchlorideat900,journaloftheelectrochemicalsociety,152(3),e104(2005)
|
| [20] | 32wangs,liy,reactionmechanismofdirectelectro–reductionoftitaniumdioxideinmoltencalciumchloride,journalofelectroanalyticalchemistry,571(1),37(2004)
|
| [21] | 33jiangk,hux,sunh,wangd,jinx,reny,chengz,electrochemicalsynthesisoflitio2andliti2o4inmoltenlicl,chemistryofmaterials,16,4324(2004)
|
| [22] | 35hirotak,okabeth,saitof,waseday,jacobkt,electrochemicaldeoxidationofre–o(re=gd,tb,dy,er)solidsolutions,282,101(1999)
|
| [23] | 37barnettr,kilbyk,frayd,reductionoftantalumpentoxideusinggraphiteandtin–oxide–basedanodesviatheffc–cambridgeprocess,metallurgicalandmaterialstransactionsb,40(2),150(2009)
|
| [24] | 5tulugank,parkc,qingw,parkw,compositiondesignandmechanicalpropertiesofbcctisolidsolutionalloyswithlowyoung’smodulus,journalofmechanicalscienceandtechnology,26(2),373(2012)
|
| [25] | 7hayesfh,advancesintitaniumextractivemetallurgy,fhh1–tech49/2,(april)(1984).
|
| [26] | 8onok,fundamentalaspectsofcalciothermicprocesstoproducetitanium,materialstransactions,45(5),1660(2004)
|
| [27] | 9suzukiro,aizawam,onok,calcium–deoxidationofniobiumandtitaniuminca–saturatedcacl2moltensalt,journalofalloysandcompounds,288(1–2),173(1999)
|
| [28] | 10suzukiro,directreductionprocessesfortitaniumoxideinmoltensalt,jom,59(1),68(2007)
|
| [29] | 12okabeth,parki,jacobkt,waseday,productionofniobiumpowderbyelectronicallymediatedreaction(emr)usingcalciumasareductant,journalofalloysandcompounds,288(1–2),200(1999)
|
| [30] | 14bhagatr,jacksonm,inmand,dashwoodr,productionofti–walloysfrommixedoxideprecursorsviatheffccambridgeprocess,journaloftheelectrochemicalsociety,156(1),e1(2009)
|
| [31] | 15schwandtc,fraydj,theelectrochemicalreductionofchromiumsesquioxideinmoltencalciumchlorideundercathodicpotentialcontrol,zeitschriftf¨urnaturforschunga,62,655(2007)
|
| [32] | 16withersjc,loutfyro,thermalandelectrochemicalprocessformetalproduction[p].url.
|
| [33] | 17yexs,luxg,lich,dingwz,zouxl,gaoyh,zhongqd,preparationofti—-febasedhydrogenstoragealloybysommethod,36(7),4573(2011)
|
| [34] | 19chos,hurj,seoc,yoonj,parks,hotcorrosionbehaviorofni–basealloysinamoltensaltunderanoxidizingatmosphere,468(1-2),263(2009)
|
| [35] | 25fraycsdj,determinationofthekineticpathwayintheelectrochemicalreductionoftitaniumdioxideinmoltencalciumchloride,electrochimicaacta,51,66(2005)
|
| [36] | 29alexanderd,schwandtc,fraydj,microstructuralkineticsofphasetransformationsduringelectrochemicalreductionoftitaniumdioxideinmoltencalciumchloride,actamaterialia,54(11),2933(2006)
|
| [37] | 34qiug,mam,wangd,jinx,hux,chengz,metalliccavityelectrodesforinvestigationofpowders,journaloftheelectrochemicalsociety,152(10),e328(2005)
|
| [38] | 36chengz,fraydj,voltammetricstudiesoftheoxygen–titaniumbinarysysteminmoltencalciumchloride,journaloftheelectrochemicalsociety,149(11),e455(2002)
|
| [39] | 38anttiroinejmpb,hscchemistryforwindows[db/cd].version6.0ed.pori,finland:research,outokumpu,2006.
|
| [40] | 39liangyingjiao,cheyinchang,inorganicthermodynamicdatasheet(shenyang,liaoning,china,northeasternuniversitypress,1993)p.634)
|
| [41] | (梁英教,车荫昌,无机物热力学数据手册(中国辽宁沈阳,东北大学出版社,1993)p.634)
|
| [42] | 40littlewoodr,diagrammaticrepresentationofthethermodynamicsofmetal–fusedchloridesystems,journaloftheelectrochemicalsociety,109(6),525(1962)
|
| [43] | 41jiangk,huxh,mam,wangdh,qiugh,jinxb,chengz,”perovskitization”–assistedelectrochemicalreductionofsolidtio2inmoltencacl2,angewandtechemie–internationaledition,45(3),428(2006)
|
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