復(fù)合添加二元陰陽(yáng)離子非晶態(tài)Ni(OH)-,2-的制備及電化學(xué)性能研究.pdf

1、桂林理工大學(xué)碩士學(xué)位論文復(fù)合添加二元陰陽(yáng)離子非晶態(tài)Ni（OH）的制備及電化學(xué)性能研究姓名：孫丹申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：化學(xué)工藝指導(dǎo)教師：劉長(zhǎng)久20090401AbstractCurrentadvanceofstudyonamorphousnickelhydroxidewasreviewedinthispaperBasedonthespecificmicro—strl工ctuIe，physicalchemistrypropertiesof

2、amorphousmaterialsandthesynergisticeffectsofanionandcation，amorphousnickelhydroxideaddedanionandcationwasresearched，synthesistechnologymicrostructuralcharacteristics，electrochemicalpropertiesandsolidphaseprotondiffusiono

3、fthesampleswasalsoresearchedAtthesametime，themechanismofelectrochemicalactivityeffecthadbeenstudiedBymeasurementoforthogonalexperiment，thebestsynthesistechnologyofamorphousnickelhydroxidedopedP04’wasestablishedThetimeoft

4、hereactionwas3h，thereactiontemperaturewas55℃，thevalueofpHwas12，thecontentofP04爭(zhēng)Was5wt％andthesurfactantwasTween80TheeffectdegreeofsynthesistechnologyonelectrochemicalofnickelhydroxideWasstudiedbyrangeanalysisthedegreeorde

5、rWasthereactiontemperature、valueofpH、contentofP0，’、surfactant、timeofthereaction、andthethreesignificantfactorsWasstudiedfurtherComparewiththepureamorphoustheinfraredabsorptionbandofamorphousnickelhydroxidedopedP043。become

6、moreremarkablywatercontentofthesamplematerialWasincreased，defectsofthes仰cturewasalsoincreaseddisorderingdegreebecomestrongerandthermalstabilitywasincreasedBycontrastwitlltheelectrochemicalpropertiesofamorphousnickelhydro

7、xidedopedP043’andpureamorphousnickelhydroxide，theresultshowedthatthedischargevoltage(125ⅥWashigherandithelpstoimprovingthereversibilityofelectrode，restrainingtheoxygenevolutionreactionandimprovingthechargedischargeeffici

8、encyAmorphousnickelhydroxidedopedMSr2／PO3’andFc3垤032。werepreparedatoptimumprocessingconditions，structureandpropertiesWasalsotestedTheresultshowedthatthepowdershowedamorphousandirregularshoe，thenoncrystallizationdegreeofs

9、amplesdopedanionandcationWasincreasedCompare、析tllthepureamorphousnickelhydroxide，thedefectsofthestructureWasincreased，disorderingdegreebecomestrongerwatercontentWasincreasedandadsorptionofanionwasalsoincreasedThedischarg

10、especificcapacityandthedischargemeanvoltageofamorphousNi(OH)2doped5wt％P04’。and2wt％Ms2reachedrespectivelyto347。6mAh。g。and1291VcapacityfadingjustWas35％after50cyclesandthediffusionrateofsolidphaseprotonWas922x10qocm281Thedi

11、schargespecificcapacityofamorphousNi(OH)2doped8wt％Fe3and2wt％C032。reachedto3615mAh～g，capacityfadingjustWas302％after50cyclesandthediffusionrateofsolidphaseprotonWas463x10。9cm2s一，黜andRctatdifferentDODchangedslightlyanditpre