logoxgvb
Joined: 30 Aug 2010
Posts: 1580
Read: 0 topics
Warns: 0/5
Location: hdfttv
|
 Posted: Sun 15:35, 28 Nov 2010 Post subject: KART CAT Low temperature solid state reaction meth |
|
|
Low temperature solid state reaction method for preparing cerium-zirconia solid solution
wtemperature, whichwasakindofnewcraftaccordingwithgreenchemistry. Keywords: eeria; zirconia; solidsolution; solidstatereaction (pick No. 1037 on) AstudyonthestructureandelectrochemicalpropertiesofLao. 67M. 33Ni3. o an AI (a 0,0.1,[link widoczny dla zalogowanych],0.2,[link widoczny dla zalogowanych],0.3) hydrogenstoragealloysZHANGXu-yu, LUoYong-chun, WANGDa-hui, YANRU-XU, ZHANGYing,[link widoczny dla zalogowanych], KANGLong (KeyLaboratoryofNewNonferrousMetalMaterials, LanzhouUniversityofScienceandTechnology,[link widoczny dla zalogowanych], Lanzhou730050, China) Abstract: TheeffectofreplacingpartofNibyAlinLao . 67Mg0.33Ni3.0onthestructureandelectrochemicalprop-ertiesofthusformedLa0.67Mg0.33Ni3.0 a A1quaternaryalloys (z a 0,0.1,0.2,0.3) wasinvestigated. XRDa-nalysisshowsthatLao. 67Mg0.33Ni3.0consistsof (La, Mg) Ni3phaseand (La, Mg) 2Nbphase. LaNi5phasewithCaCustypeappearedwhenAlwasadded. TheincreaseofAlcontentleadstoanincreaseofcontentofLaNisphase. ThemainphaseoftheA1substitutedalloyswithx: 0.3wasLaNisphase. TheRietveldanalysisforLao. 67Mg0.33Ni3.0 a A10.1showsthatAlatomsoccupy6hpositionwhichwaetweentwoCaCusunitsin (La, Mg) 2Ni7phase. TheresultsofEPMAanalysisforLao. 67Mg0.33Ni3.0 a A10.3revealthatA1mainlysubstitutestheNiinLaNisphase. WecandrawaconclusionthatAlwashelpfultotheformationofLaNi5phase. Theelectro-chemicalanalysisshowsthatthesubstitutionsleadtosomedecreaseindischargecapacityandhavelittleeffectontheactivationproperty. ThedischargecapacityofLao-67Mg0.33Ni3.0 an A1 (z = 0,0.1,[link widoczny dla zalogowanych],0.2,0.3) are392, 324,267 and252mAh/grespectively. $ 50forLao. 67Mgo. 33Ni3. o an A1 (z = 0,0.1,0.2,0.3) were78.4 '82 .4 '83 .5 and77.5respectively. Keywords: hydrogenstoragealloys; electrochemicalproperties; crystalstructure
相关的主题文章：
[link widoczny dla zalogowanych]
[link widoczny dla zalogowanych]
[link widoczny dla zalogowanych]
The post has been approved 0 times
|
|
